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@@ -2421,6 +2421,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/openj9_support/index.html b/openj9_support/index.html
index 50b16eb..65a0744 100644
--- a/openj9_support/index.html
+++ b/openj9_support/index.html
@@ -2421,6 +2421,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/search/search_index.json b/search/search_index.json
index 41559e8..e421e8f 100644
--- a/search/search_index.json
+++ b/search/search_index.json
@@ -4606,6 +4606,21 @@
             "title": "Syntax"
         },
         {
+            "location": "/xxpositiveidentityhash/",
+            "text": "-XX:[+|-]PositiveIdentityHash\n\n\nOpenJ9 allows both positive and negative identity hashcodes (\nSystem.identityHashCode\n / \nObject.hashCode\n). This is problematic for programs that incorrectly assume hashcodes can only be positive.\n\n\nWhen enabled, this option limits identity hash codes to non-negative values.\n\n\nBecause limiting identity hash codes to non-negative values can have an impact on the performance of hash-intensive operations, this option is not enabled by default.\n\n\nSyntax\n\n\n    -XX:[+|-]PositiveIdentityHash\n\n\n\n\n\n\n\n\n\n\n\nSetting\n\n\nEffect\n\n\nDefault\n\n\n\n\n\n\n\n\n\n\n-XX:+PositiveIdentityHash\n\n\nEnable\n\n\n\n\n\n\n\n\n-XX:-PositiveIdentityHash\n\n\nDisable\n\n\nyes",
+            "title": "-XX:[+|-]PositiveIdentityHash"
+        },
+        {
+            "location": "/xxpositiveidentityhash/#-xx91-93positiveidentityhash",
+            "text": "OpenJ9 allows both positive and negative identity hashcodes ( System.identityHashCode  /  Object.hashCode ). This is problematic for programs that incorrectly assume hashcodes can only be positive.  When enabled, this option limits identity hash codes to non-negative values.  Because limiting identity hash codes to non-negative values can have an impact on the performance of hash-intensive operations, this option is not enabled by default.",
+            "title": "-XX:[+|-]PositiveIdentityHash"
+        },
+        {
+            "location": "/xxpositiveidentityhash/#syntax",
+            "text": "-XX:[+|-]PositiveIdentityHash     Setting  Effect  Default      -XX:+PositiveIdentityHash  Enable     -XX:-PositiveIdentityHash  Disable  yes",
+            "title": "Syntax"
+        },
+        {
             "location": "/xxreducecpumonitoroverhead/",
             "text": "-XX:[+|-]ReduceCPUMonitorOverhead\n\n\n(AIX\u00ae, Linux\u2122, and Windows\u2122 only)\n\n\nThis option relates to the CPU usage of thread categories that can be obtained with the \ncom.ibm.lang.management.JvmCpuMonitorMXBean\n application programming interface. This option affects the way that the VM records the amount of CPU usage of non-Garbage Collection (GC) threads that do work on behalf of GC.\n\n\nMost GC policies require non-GC threads to do some GC housekeeping work in proportion to the amount of memory allocation that they do. Ideally the exact amount of CPU time that the thread spends doing this housekeeping work should be accounted for in the GC thread category. However there is an overhead that is associated with maintaining the CPU usage data in the correct thread category.\n\n\n \nRestriction:\n This option is not supported on z/OS\u00ae. If you attempt to use this option, the following message is generated:\n\n\nJVMJ9VM145E\n \n-\nXX\n:-\nReduceCPUMonitorOverhead\n \nis\n \nunsupported\n \non\n \nz\n/\nOS\n.\n \nError\n:\n \nCould\n \nnot\n \ncreate\n \nthe\n \nJava\n \nVirtual\n \nMachine\n.\n\n\n\n\n\n\nSyntax\n\n\n-XX:[+|-]ReduceCPUMonitorOverhead\n\n\n\n\n\n\n\n\nSetting\n\n\nEffect\n\n\nDefault\n\n\n\n\n\n\n\n\n\n\n-XX:+ReduceCPUMonitorOverhead\n\n\nEnable\n\n\nyes\n\n\n\n\n\n\n-XX:-ReduceCPUMonitorOverhead\n\n\nDisable\n\n\n\n\n\n\n\n\n\n\nWhen you enable this option, the VM does not maintain information on the amount of CPU usage that non-GC threads spend in doing work on behalf of GC.\nIf you set \n-XX:-ReduceCPUMonitorOverhead\n, the OpenJ9 VM monitors the amount of GC work that a non-GC thread does and accounts for it in the GC category. This information is made available in the \ncom.ibm.lang.management.JvmCpuMonitorMXBean\n. Setting this option results in a small increase in application startup time, which varies according to platform.\n\n\nSee also\n\n\n\n\n-XX:[+|-]EnableCPUMonitor",
             "title": "-XX:[+|-]ReduceCPUMonitorOverhead"
diff --git a/shrc/index.html b/shrc/index.html
index c03b294..5eb3624 100644
--- a/shrc/index.html
+++ b/shrc/index.html
@@ -2473,6 +2473,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/tool_builder/index.html b/tool_builder/index.html
index adccf99..93f4b13 100644
--- a/tool_builder/index.html
+++ b/tool_builder/index.html
@@ -2421,6 +2421,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/tool_jdmpview/index.html b/tool_jdmpview/index.html
index bd91d61..12f46aa 100644
--- a/tool_jdmpview/index.html
+++ b/tool_jdmpview/index.html
@@ -2421,6 +2421,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/tool_traceformat/index.html b/tool_traceformat/index.html
index f8c5d52..1e63cc9 100644
--- a/tool_traceformat/index.html
+++ b/tool_traceformat/index.html
@@ -2421,6 +2421,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/version0.10/index.html b/version0.10/index.html
index 9799401..db06d75 100644
--- a/version0.10/index.html
+++ b/version0.10/index.html
@@ -2489,6 +2489,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/version0.8/index.html b/version0.8/index.html
index bfc2299..c6847c4 100644
--- a/version0.8/index.html
+++ b/version0.8/index.html
@@ -2432,6 +2432,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/version0.9/index.html b/version0.9/index.html
index 9512483..e418ad5 100644
--- a/version0.9/index.html
+++ b/version0.9/index.html
@@ -2524,6 +2524,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/x/index.html b/x/index.html
index 2c3bf81..9769d81 100644
--- a/x/index.html
+++ b/x/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/x_jvm_commands/index.html b/x_jvm_commands/index.html
index cc4a4e8..43eeb82 100644
--- a/x_jvm_commands/index.html
+++ b/x_jvm_commands/index.html
@@ -2434,6 +2434,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xaggressive/index.html b/xaggressive/index.html
index ee7225a..9826edd 100644
--- a/xaggressive/index.html
+++ b/xaggressive/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xalwaysclassgc/index.html b/xalwaysclassgc/index.html
index bfaa0dd..f4124c8 100644
--- a/xalwaysclassgc/index.html
+++ b/xalwaysclassgc/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xaot/index.html b/xaot/index.html
index 965945a..cc4a09d 100644
--- a/xaot/index.html
+++ b/xaot/index.html
@@ -2665,6 +2665,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xargencoding/index.html b/xargencoding/index.html
index 1d71720..421f55c 100644
--- a/xargencoding/index.html
+++ b/xargencoding/index.html
@@ -2497,6 +2497,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xbootclasspath/index.html b/xbootclasspath/index.html
index 52d25f7..7a922a1 100644
--- a/xbootclasspath/index.html
+++ b/xbootclasspath/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xceehdlr/index.html b/xceehdlr/index.html
index 560c9d4..69d31e3 100644
--- a/xceehdlr/index.html
+++ b/xceehdlr/index.html
@@ -2477,6 +2477,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xcheck/index.html b/xcheck/index.html
index ec0c29d..c837bf1 100644
--- a/xcheck/index.html
+++ b/xcheck/index.html
@@ -2518,6 +2518,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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diff --git a/xclassgc/index.html b/xclassgc/index.html
index 65f2c8c..d062fb1 100644
--- a/xclassgc/index.html
+++ b/xclassgc/index.html
@@ -2499,6 +2499,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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diff --git a/xcodecache/index.html b/xcodecache/index.html
index d9d797e..369c349 100644
--- a/xcodecache/index.html
+++ b/xcodecache/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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diff --git a/xcodecachetotal/index.html b/xcodecachetotal/index.html
index 57e7722..27d63d6 100644
--- a/xcodecachetotal/index.html
+++ b/xcodecachetotal/index.html
@@ -2477,6 +2477,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xcomp/index.html b/xcomp/index.html
index 740d204..36829ef 100644
--- a/xcomp/index.html
+++ b/xcomp/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xcompactexplicitgc/index.html b/xcompactexplicitgc/index.html
index 7d5418a..dddec9e 100644
--- a/xcompactexplicitgc/index.html
+++ b/xcompactexplicitgc/index.html
@@ -2513,6 +2513,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xcompactgc/index.html b/xcompactgc/index.html
index 2f10330..eac1369 100644
--- a/xcompactgc/index.html
+++ b/xcompactgc/index.html
@@ -2527,6 +2527,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xcompilationthreads/index.html b/xcompilationthreads/index.html
index f4ebd28..24c1441 100644
--- a/xcompilationthreads/index.html
+++ b/xcompilationthreads/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xcompressedrefs/index.html b/xcompressedrefs/index.html
index 1103a93..6910edf 100644
--- a/xcompressedrefs/index.html
+++ b/xcompressedrefs/index.html
@@ -2527,6 +2527,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xconcurrentbackground/index.html b/xconcurrentbackground/index.html
index b97118f..e72ecf7 100644
--- a/xconcurrentbackground/index.html
+++ b/xconcurrentbackground/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
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index dae8f31..442eece 100644
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@@ -2513,6 +2513,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xmint/index.html
+++ b/xmint/index.html
@@ -2499,6 +2499,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xmn/index.html
+++ b/xmn/index.html
@@ -2535,6 +2535,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xmo/index.html
+++ b/xmo/index.html
@@ -2571,6 +2571,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xmr/index.html
+++ b/xmr/index.html
@@ -2499,6 +2499,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xms/index.html
+++ b/xms/index.html
@@ -2527,6 +2527,18 @@
 
 
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--- a/xmso/index.html
+++ b/xmso/index.html
@@ -2477,6 +2477,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
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+  <li class="md-nav__item">
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--- a/xnumanone/index.html
+++ b/xnumanone/index.html
@@ -2470,6 +2470,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xoptionsfile/index.html
+++ b/xoptionsfile/index.html
@@ -2484,6 +2484,18 @@
 
 
   <li class="md-nav__item">
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--- a/xquickstart/index.html
+++ b/xquickstart/index.html
@@ -2477,6 +2477,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xrdbginfo/index.html
+++ b/xrdbginfo/index.html
@@ -2470,6 +2470,18 @@
 
 
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--- a/xrs/index.html
+++ b/xrs/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
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--- a/xsamplingexpirationtime/index.html
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@@ -2470,6 +2470,18 @@
 
 
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--- a/xscdmx/index.html
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@@ -2470,6 +2470,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xscminaot/index.html
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@@ -2541,6 +2541,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xscminjitdata/index.html
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@@ -2581,6 +2581,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xscmx/index.html
+++ b/xscmx/index.html
@@ -2490,6 +2490,18 @@
 
 
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+  <li class="md-nav__item">
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@@ -2819,6 +2819,18 @@
 
 
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+        
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--- a/xsigcatch/index.html
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@@ -2499,6 +2499,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xsigchain/index.html
+++ b/xsigchain/index.html
@@ -2499,6 +2499,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xsignal/index.html
+++ b/xsignal/index.html
@@ -2497,6 +2497,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xsoftmx/index.html
+++ b/xsoftmx/index.html
@@ -2470,6 +2470,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xsoftrefthreshold/index.html
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@@ -2477,6 +2477,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xss/index.html
+++ b/xss/index.html
@@ -2556,6 +2556,18 @@
 
 
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+  <li class="md-nav__item">
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--- a/xtgc/index.html
+++ b/xtgc/index.html
@@ -2532,6 +2532,18 @@
 
 
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--- a/xthr/index.html
+++ b/xthr/index.html
@@ -2511,6 +2511,18 @@
 
 
   <li class="md-nav__item">
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+  <li class="md-nav__item">
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--- a/xtlhprefetch/index.html
+++ b/xtlhprefetch/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
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+  <li class="md-nav__item">
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--- a/xtrace/index.html
+++ b/xtrace/index.html
@@ -2745,6 +2745,18 @@
 
 
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--- a/xtunevirtualized/index.html
+++ b/xtunevirtualized/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
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--- a/xverbosegclog/index.html
+++ b/xverbosegclog/index.html
@@ -2477,6 +2477,18 @@
 
 
   <li class="md-nav__item">
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--- a/xverify/index.html
+++ b/xverify/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
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--- a/xx_jvm_commands/index.html
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@@ -2434,6 +2434,18 @@
 
 
   <li class="md-nav__item">
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+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
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+  </li>
+
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+          
+
+
+  <li class="md-nav__item">
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index ae29dc8..53cfdd3 100644
--- a/xxallowvmshutdown/index.html
+++ b/xxallowvmshutdown/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
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+
+        
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+          
+
+
+  <li class="md-nav__item">
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--- a/xxcodecachetotal/index.html
+++ b/xxcodecachetotal/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
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+          
+
+
+  <li class="md-nav__item">
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index 761b427..8dc3374 100644
--- a/xxdisableexplicitgc/index.html
+++ b/xxdisableexplicitgc/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
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+          
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+
+  <li class="md-nav__item">
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--- a/xxdisclaimjitscratch/index.html
+++ b/xxdisclaimjitscratch/index.html
@@ -2470,6 +2470,18 @@
 
 
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+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
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+        
+          
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+
+
+  <li class="md-nav__item">
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index 708b5ad..77b722e 100644
--- a/xxenablecpumonitor/index.html
+++ b/xxenablecpumonitor/index.html
@@ -2477,6 +2477,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
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diff --git a/xxhandlesigxfsz/index.html b/xxhandlesigxfsz/index.html
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--- a/xxhandlesigxfsz/index.html
+++ b/xxhandlesigxfsz/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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index c926d9e..cc33530 100644
--- a/xxheapdumponoutofmemory/index.html
+++ b/xxheapdumponoutofmemory/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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diff --git a/xxheapdumppath/index.html b/xxheapdumppath/index.html
index 329b376..106b36c 100644
--- a/xxheapdumppath/index.html
+++ b/xxheapdumppath/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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index 38bd0e3..70a7ee9 100644
--- a/xxheapmanagementmxbeancompatibility/index.html
+++ b/xxheapmanagementmxbeancompatibility/index.html
@@ -2477,6 +2477,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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index 5d8bcc5..479e35c 100644
--- a/xxidletuningcompactonidle/index.html
+++ b/xxidletuningcompactonidle/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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index f2d00be..17b7ee6 100644
--- a/xxidletuninggconidle/index.html
+++ b/xxidletuninggconidle/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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diff --git a/xxidletuningminfreeheaponidle/index.html b/xxidletuningminfreeheaponidle/index.html
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--- a/xxidletuningminfreeheaponidle/index.html
+++ b/xxidletuningminfreeheaponidle/index.html
@@ -2477,6 +2477,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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diff --git a/xxidletuningminidlewaittime/index.html b/xxidletuningminidlewaittime/index.html
index a5a7776..a7ae99a 100644
--- a/xxidletuningminidlewaittime/index.html
+++ b/xxidletuningminidlewaittime/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xxignoreunrecognizedvmoptions/index.html b/xxignoreunrecognizedvmoptions/index.html
index 951e2fa..35544de 100644
--- a/xxignoreunrecognizedvmoptions/index.html
+++ b/xxignoreunrecognizedvmoptions/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xxinitialheapsize/index.html b/xxinitialheapsize/index.html
index 0a78ad9..cb98b33 100644
--- a/xxinitialheapsize/index.html
+++ b/xxinitialheapsize/index.html
@@ -2499,6 +2499,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
     </a>
diff --git a/xxinitialrampercentage/index.html b/xxinitialrampercentage/index.html
index 6a70571..883c0e8 100644
--- a/xxinitialrampercentage/index.html
+++ b/xxinitialrampercentage/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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index 5706dfe..382a005 100644
--- a/xxinterleavememory/index.html
+++ b/xxinterleavememory/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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diff --git a/xxlazysymbolresolution/index.html b/xxlazysymbolresolution/index.html
index 46ec2ea..3f4d24f 100644
--- a/xxlazysymbolresolution/index.html
+++ b/xxlazysymbolresolution/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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diff --git a/xxmaxdirectmemorysize/index.html b/xxmaxdirectmemorysize/index.html
index e9a2628..c99b0d5 100644
--- a/xxmaxdirectmemorysize/index.html
+++ b/xxmaxdirectmemorysize/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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diff --git a/xxmaxrampercentage/index.html b/xxmaxrampercentage/index.html
index d990f65..ce39780 100644
--- a/xxmaxrampercentage/index.html
+++ b/xxmaxrampercentage/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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index 49ecd9d..7a6fe69 100644
--- a/xxnosuballoc32bitmem/index.html
+++ b/xxnosuballoc32bitmem/index.html
@@ -2470,6 +2470,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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diff --git a/xxpagealigndirectmemory/index.html b/xxpagealigndirectmemory/index.html
index 2f2ed79..0cf889a 100644
--- a/xxpagealigndirectmemory/index.html
+++ b/xxpagealigndirectmemory/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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@@ -2937,13 +2949,13 @@
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-                      <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next">
+                      <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next">
                         <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title">
                           <span class="md-flex__ellipsis">
                             <span class="md-footer-nav__direction">
                               Next
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-                            -XX:[+|-]ReduceCPUMonitorOverhead
+                            -XX:[+|-]PositiveIdentityHash
                           </span>
                         </div>
                         <div class="md-flex__cell md-flex__cell--shrink">
diff --git a/xxpositiveidentityhash/index.html b/xxpositiveidentityhash/index.html
new file mode 100644
index 0000000..51caeec
--- /dev/null
+++ b/xxpositiveidentityhash/index.html
@@ -0,0 +1,3081 @@
+<!--
+* Copyright (c) 2017, 2018 IBM Corp. and others
+*
+* This program and the accompanying materials are made
+* available under the terms of the Eclipse Public License 2.0
+* which accompanies this distribution and is available at
+* https://www.eclipse.org/legal/epl-2.0/ or the Apache
+* License, Version 2.0 which accompanies this distribution and
+* is available at https://www.apache.org/licenses/LICENSE-2.0.
+*
+* This Source Code may also be made available under the
+* following Secondary Licenses when the conditions for such
+* availability set forth in the Eclipse Public License, v. 2.0
+* are satisfied: GNU General Public License, version 2 with
+* the GNU Classpath Exception [1] and GNU General Public
+* License, version 2 with the OpenJDK Assembly Exception [2].
+*
+* [1] https://www.gnu.org/software/classpath/license.html
+* [2] http://openjdk.java.net/legal/assembly-exception.html
+*
+* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH
+* Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
+-->
+
+
+
+
+<!DOCTYPE html>
+<html lang="en" class="no-js">
+  <head>
+    
+      <meta charset="utf-8">
+      <meta name="viewport" content="width=device-width,initial-scale=1">
+      <meta http-equiv="x-ua-compatible" content="ie=edge">
+      
+        <meta name="description" content="Eclipse OpenJ9 documentation">
+      
+      
+        <link rel="canonical" href="https://www.eclipse.org/openj9/docs/xxpositiveidentityhash/">
+      
+      
+      
+        <meta name="lang:clipboard.copy" content="">
+      
+        <meta name="lang:clipboard.copied" content="">
+      
+        <meta name="lang:search.language" content="">
+      
+        <meta name="lang:search.pipeline.stopwords" content="">
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+        <meta name="lang:search.pipeline.trimmer" content="">
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+        <meta name="lang:search.result.none" content="">
+      
+        <meta name="lang:search.result.one" content="">
+      
+        <meta name="lang:search.result.other" content="">
+      
+        <meta name="lang:search.tokenizer" content="">
+      
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+      <meta name="generator" content="mkdocs-0.17.2, mkdocs-material-2.6.3">
+    
+    
+      
+        <title>-XX:[+|-]PositiveIdentityHash -  </title>
+      
+    
+    
+      <link rel="stylesheet" href="../assets/stylesheets/application.9b572555.css">
+      
+        <link rel="stylesheet" href="../assets/stylesheets/application-palette.6079476c.css">
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+      <script src="../assets/javascripts/modernizr.1aa3b519.js"></script>
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+        <style>body,input{font-family:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style>
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+      <link rel="stylesheet" href="../stylesheets/oj9.css">
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+        46.75-30.25t47.25-9.75q12.75 25.5 12.75 54.5 0 21.75-6.75 42 34 40 34
+        99.5z" />
+</svg>
+        
+      </defs>
+    </svg>
+    <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="drawer">
+    <input class="md-toggle" data-md-toggle="search" type="checkbox" id="search">
+    <label class="md-overlay" data-md-component="overlay" for="drawer"></label>
+    
+      <a href="#-xx91-93positiveidentityhash" tabindex="1" class="md-skip">
+        
+      </a>
+    
+    
+      <!--
+* Copyright (c) 2017, 2018 IBM Corp. and others
+*
+* This program and the accompanying materials are made
+* available under the terms of the Eclipse Public License 2.0
+* which accompanies this distribution and is available at
+* https://www.eclipse.org/legal/epl-2.0/ or the Apache
+* License, Version 2.0 which accompanies this distribution and
+* is available at https://www.apache.org/licenses/LICENSE-2.0.
+*
+* This Source Code may also be made available under the
+* following Secondary Licenses when the conditions for such
+* availability set forth in the Eclipse Public License, v. 2.0
+* are satisfied: GNU General Public License, version 2 with
+* the GNU Classpath Exception [1] and GNU General Public
+* License, version 2 with the OpenJDK Assembly Exception [2].
+*
+* [1] https://www.gnu.org/software/classpath/license.html
+* [2] http://openjdk.java.net/legal/assembly-exception.html
+*
+* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH
+* Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
+-->
+<header class="md-header" data-md-component="header">
+  <nav class="md-header-nav md-grid">
+    <div class="md-flex">
+      <div class="md-flex__cell md-flex__cell--shrink">
+        <a href="https://www.eclipse.org/openj9/docs" title=" " class="md-header-nav__button md-logo">
+          
+            <img src="../cr/openj9_6b.png">
+          
+        </a>
+      </div>
+      <div class="md-flex__cell md-flex__cell--shrink">
+        <label class="md-icon md-icon--menu md-header-nav__button" for="drawer"></label>
+      </div>
+      <div class="md-flex__cell md-flex__cell--stretch">
+        <div class="md-flex__ellipsis md-header-nav__title" data-md-component="title">
+        </div>
+      </div>
+      <div class="md-flex__cell md-flex__cell--shrink">
+        
+          
+            <label class="md-icon md-icon--search md-header-nav__button" for="search"></label>
+            
+<div class="md-search" data-md-component="search" role="dialog">
+  <label class="md-search__overlay" for="search"></label>
+  <div class="md-search__inner" role="search">
+    <form class="md-search__form" name="search">
+      <input type="text" class="md-search__input" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active">
+      <label class="md-icon md-search__icon" for="search"></label>
+      <button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1">
+        &#xE5CD;
+      </button>
+    </form>
+    <div class="md-search__output">
+      <div class="md-search__scrollwrap" data-md-scrollfix>
+        <div class="md-search-result" data-md-component="result">
+          <div class="md-search-result__meta">
+            
+          </div>
+          <ol class="md-search-result__list"></ol>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>
+          
+        
+      </div>
+      
+        <div class="md-flex__cell md-flex__cell--shrink">
+          <div class="md-header-nav__source">
+            
+
+
+  
+
+
+  <a href="https://github.com/eclipse/openj9-docs/" title="Go to repository" class="md-source" data-md-source="github">
+    
+      <div class="md-source__icon">
+        <svg viewBox="0 0 24 24" width="24" height="24">
+          <use xlink:href="#github" width="24" height="24"></use>
+        </svg>
+      </div>
+    
+    <div class="md-source__repository">
+      GitHub
+    </div>
+  </a>
+
+          </div>
+        </div>
+      
+
+      <!-- Eclipse Incubator link -->
+      <div class="md-flex__cell md-flex__cell--shrink">
+        <a href="http://wiki.eclipse.org/Development_Resources/Process_Guidelines/What_is_Incubation" target="_blank"><img class="egg" src="../cr/egg-incubation.png" alt="Eclipse Incubation"></a>
+      </div>  
+
+    </div>
+  </nav>
+</header>
+    
+    <div class="md-container">
+      
+        
+      
+      
+      <main class="md-main">
+        <div class="md-main__inner md-grid" data-md-component="container">
+          
+            
+              <div class="md-sidebar md-sidebar--primary" data-md-component="navigation">
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    <nav class="md-nav md-nav--primary" data-md-level="0">
+  <label class="md-nav__title md-nav__title--site" for="drawer">
+    <span class="md-nav__button md-logo">
+      
+        <img src="../cr/openj9_6b.png" width="24" height="24">
+      
+    </span>
+     
+  </label>
+  
+    <div class="md-nav__source">
+      
+
+
+  
+
+
+  <a href="https://github.com/eclipse/openj9-docs/" title="Go to repository" class="md-source" data-md-source="github">
+    
+      <div class="md-source__icon">
+        <svg viewBox="0 0 24 24" width="24" height="24">
+          <use xlink:href="#github" width="24" height="24"></use>
+        </svg>
+      </div>
+    
+    <div class="md-source__repository">
+      GitHub
+    </div>
+  </a>
+
+    </div>
+  
+  <ul class="md-nav__list" data-md-scrollfix>
+    
+      
+      
+      
+
+
+  <li class="md-nav__item">
+    <a href=".." title="About" class="md-nav__link">
+      About
+    </a>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item">
+    <a href="../introduction/" title="Introduction" class="md-nav__link">
+      Introduction
+    </a>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item md-nav__item--nested">
+    
+      <input class="md-toggle md-nav__toggle" data-md-toggle="nav-3" type="checkbox" id="nav-3">
+    
+    <label class="md-nav__link" for="nav-3">
+      Release notes
+    </label>
+    <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
+      <label class="md-nav__title" for="nav-3">
+        Release notes
+      </label>
+      <ul class="md-nav__list" data-md-scrollfix>
+        
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../version0.10/" title="Version 0.10.0" class="md-nav__link">
+      Version 0.10.0
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../version0.9/" title="Version 0.9.0" class="md-nav__link">
+      Version 0.9.0
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../version0.8/" title="Version 0.8.0" class="md-nav__link">
+      Version 0.8.0
+    </a>
+  </li>
+
+        
+      </ul>
+    </nav>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item">
+    <a href="../gc/" title="Garbage Collection" class="md-nav__link">
+      Garbage Collection
+    </a>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item">
+    <a href="../jit/" title="JIT Compiler" class="md-nav__link">
+      JIT Compiler
+    </a>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item">
+    <a href="../aot/" title="AOT Compiler" class="md-nav__link">
+      AOT Compiler
+    </a>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item">
+    <a href="../shrc/" title="Class data sharing" class="md-nav__link">
+      Class data sharing
+    </a>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item md-nav__item--nested">
+    
+      <input class="md-toggle md-nav__toggle" data-md-toggle="nav-8" type="checkbox" id="nav-8">
+    
+    <label class="md-nav__link" for="nav-8">
+      Diagnostics
+    </label>
+    <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
+      <label class="md-nav__title" for="nav-8">
+        Diagnostics
+      </label>
+      <ul class="md-nav__list" data-md-scrollfix>
+        
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../diag_overview/" title="Tools and data" class="md-nav__link">
+      Tools and data
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dump_javadump/" title="Java dump" class="md-nav__link">
+      Java dump
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dump_heapdump/" title="Heap dump" class="md-nav__link">
+      Heap dump
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dump_systemdump/" title="System dump" class="md-nav__link">
+      System dump
+    </a>
+  </li>
+
+        
+      </ul>
+    </nav>
+  </li>
+
+    
+      
+      
+      
+
+  
+
+
+  <li class="md-nav__item md-nav__item--active md-nav__item--nested">
+    
+      <input class="md-toggle md-nav__toggle" data-md-toggle="nav-9" type="checkbox" id="nav-9" checked>
+    
+    <label class="md-nav__link" for="nav-9">
+      Command-line options
+    </label>
+    <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
+      <label class="md-nav__title" for="nav-9">
+        Command-line options
+      </label>
+      <ul class="md-nav__list" data-md-scrollfix>
+        
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../cmdline_specifying/" title="Specifying options" class="md-nav__link">
+      Specifying options
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../cmdline_general/" title="Standard options" class="md-nav__link">
+      Standard options
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../cmdline_migration/" title="Migrating to OpenJ9" class="md-nav__link">
+      Migrating to OpenJ9
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item md-nav__item--nested">
+    
+      <input class="md-toggle md-nav__toggle" data-md-toggle="nav-9-4" type="checkbox" id="nav-9-4">
+    
+    <label class="md-nav__link" for="nav-9-4">
+      System property options
+    </label>
+    <nav class="md-nav" data-md-component="collapsible" data-md-level="2">
+      <label class="md-nav__title" for="nav-9-4">
+        System property options
+      </label>
+      <ul class="md-nav__list" data-md-scrollfix>
+        
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../d_jvm_commands/" title="Using System properties" class="md-nav__link">
+      Using System properties
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmenableclasscaching/" title="-Dcom.ibm.enableClassCaching" class="md-nav__link">
+      -Dcom.ibm.enableClassCaching
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmenablelegacydumpsecurity/" title="-Dcom.ibm.enableLegacyDumpSecurity" class="md-nav__link">
+      -Dcom.ibm.enableLegacyDumpSecurity
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmenablelegacylogsecurity/" title="-Dcom.ibm.enableLegacyLogSecurity" class="md-nav__link">
+      -Dcom.ibm.enableLegacyLogSecurity
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmenablelegacytracesecurity/" title="-Dcom.ibm.enableLegacyTraceSecurity" class="md-nav__link">
+      -Dcom.ibm.enableLegacyTraceSecurity
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmlangmanagementosmxbeaniscputime100ns/" title="-Dcom.ibm.lang.management.OperatingSystemMXBean.isCpuTime100ns" class="md-nav__link">
+      -Dcom.ibm.lang.management.OperatingSystemMXBean.isCpuTime100ns
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmlangmanagementverbose/" title="-Dcom.ibm.lang.management.verbose" class="md-nav__link">
+      -Dcom.ibm.lang.management.verbose
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmtoolsattachdirectory/" title="-Dcom.ibm.tools.attach.directory" class="md-nav__link">
+      -Dcom.ibm.tools.attach.directory
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmtoolsattachdisplayname/" title="-Dcom.ibm.tools.attach.displayName" class="md-nav__link">
+      -Dcom.ibm.tools.attach.displayName
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmtoolsattachenable/" title="-Dcom.ibm.tools.attach.enable" class="md-nav__link">
+      -Dcom.ibm.tools.attach.enable
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmtoolsattachid/" title="-Dcom.ibm.tools.attach.id" class="md-nav__link">
+      -Dcom.ibm.tools.attach.id
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dcomibmtoolsattachtimeout/" title="-Dcom.ibm.tools.attach.timeout" class="md-nav__link">
+      -Dcom.ibm.tools.attach.timeout
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../dfileencoding/" title="-Dfile.encoding" class="md-nav__link">
+      -Dfile.encoding
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../djavacompiler/" title="-Djava.compiler" class="md-nav__link">
+      -Djava.compiler
+    </a>
+  </li>
+
+        
+      </ul>
+    </nav>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item md-nav__item--nested">
+    
+      <input class="md-toggle md-nav__toggle" data-md-toggle="nav-9-5" type="checkbox" id="nav-9-5">
+    
+    <label class="md-nav__link" for="nav-9-5">
+      JVM -X options
+    </label>
+    <nav class="md-nav" data-md-component="collapsible" data-md-level="2">
+      <label class="md-nav__title" for="nav-9-5">
+        JVM -X options
+      </label>
+      <ul class="md-nav__list" data-md-scrollfix>
+        
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../x_jvm_commands/" title="Using -X options" class="md-nav__link">
+      Using -X options
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../x/" title="-X" class="md-nav__link">
+      -X
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xaggressive/" title="-Xaggressive" class="md-nav__link">
+      -Xaggressive
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xalwaysclassgc/" title="-Xalwaysclassgc" class="md-nav__link">
+      -Xalwaysclassgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xaot/" title="-Xaot" class="md-nav__link">
+      -Xaot
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xargencoding/" title="-Xargencoding" class="md-nav__link">
+      -Xargencoding
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xbootclasspath/" title="-Xbootclasspath" class="md-nav__link">
+      -Xbootclasspath
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xceehdlr/" title="-XCEEHDLR" class="md-nav__link">
+      -XCEEHDLR
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcheck/" title="-Xcheck" class="md-nav__link">
+      -Xcheck
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xclassgc/" title="-Xclassgc" class="md-nav__link">
+      -Xclassgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcodecache/" title="-Xcodecache" class="md-nav__link">
+      -Xcodecache
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcodecachetotal/" title="-Xcodecachetotal" class="md-nav__link">
+      -Xcodecachetotal
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcomp/" title="-Xcomp" class="md-nav__link">
+      -Xcomp
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcompactexplicitgc/" title="-Xcompactexplicitgc" class="md-nav__link">
+      -Xcompactexplicitgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcompactgc/" title="-Xcompactgc" class="md-nav__link">
+      -Xcompactgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcompilationthreads/" title="-XcompilationThreads" class="md-nav__link">
+      -XcompilationThreads
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcompressedrefs/" title="-Xcompressedrefs" class="md-nav__link">
+      -Xcompressedrefs
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xconcurrentbackground/" title="-Xconcurrentbackground" class="md-nav__link">
+      -Xconcurrentbackground
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xconcurrentlevel/" title="-Xconcurrentlevel" class="md-nav__link">
+      -Xconcurrentlevel
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xconcurrentslack/" title="-Xconcurrentslack" class="md-nav__link">
+      -Xconcurrentslack
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xconmeter/" title="-Xconmeter" class="md-nav__link">
+      -Xconmeter
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xdiagnosticscollector/" title="-Xdiagnosticscollector" class="md-nav__link">
+      -Xdiagnosticscollector
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xenableexcessivegc/" title="-Xdisableexcessivegc" class="md-nav__link">
+      -Xdisableexcessivegc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xenableexplicitgc/" title="-Xdisableexplicitgc" class="md-nav__link">
+      -Xdisableexplicitgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xdisablejavadump/" title="-Xdisablejavadump" class="md-nav__link">
+      -Xdisablejavadump
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xenablestringconstantgc/" title="-Xdisablestringconstantgc" class="md-nav__link">
+      -Xdisablestringconstantgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xdump/" title="-Xdump" class="md-nav__link">
+      -Xdump
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xenableexcessivegc/" title="-Xenableexcessivegc" class="md-nav__link">
+      -Xenableexcessivegc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xenableexplicitgc/" title="-Xenableexplicitgc" class="md-nav__link">
+      -Xenableexplicitgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xenablestringconstantgc/" title="-Xenablestringconstantgc" class="md-nav__link">
+      -Xenablestringconstantgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xfastresolve/" title="-Xfastresolve" class="md-nav__link">
+      -Xfastresolve
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xfuture/" title="-Xfuture" class="md-nav__link">
+      -Xfuture
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xgc/" title="-Xgc" class="md-nav__link">
+      -Xgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xgcsplitheap/" title="-Xgc:splitheap" class="md-nav__link">
+      -Xgc:splitheap
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xgcpolicy/" title="-Xgcpolicy" class="md-nav__link">
+      -Xgcpolicy
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xgcthreads/" title="-Xgcthreads" class="md-nav__link">
+      -Xgcthreads
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xgcworkpackets/" title="-Xgcworkpackets" class="md-nav__link">
+      -Xgcworkpackets
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xifa/" title="-Xifa" class="md-nav__link">
+      -Xifa
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xint/" title="-Xint" class="md-nav__link">
+      -Xint
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xss/" title="-Xiss" class="md-nav__link">
+      -Xiss
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xjit/" title="-Xjit" class="md-nav__link">
+      -Xjit
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xjni/" title="-Xjni" class="md-nav__link">
+      -Xjni
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xlinenumbers/" title="-Xlinenumbers" class="md-nav__link">
+      -Xlinenumbers
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xloa/" title="-Xloa" class="md-nav__link">
+      -Xloa
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xloaminimum/" title="-Xloainitial" class="md-nav__link">
+      -Xloainitial
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xloaminimum/" title="-Xloamaximum" class="md-nav__link">
+      -Xloamaximum
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xloaminimum/" title="-Xloaminimum" class="md-nav__link">
+      -Xloaminimum
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xlockreservation/" title="-XlockReservation" class="md-nav__link">
+      -XlockReservation
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xlockword/" title="-Xlockword" class="md-nav__link">
+      -Xlockword
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xlog/" title="-Xlog" class="md-nav__link">
+      -Xlog
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xlp/" title="-Xlp" class="md-nav__link">
+      -Xlp
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xlpcodecache/" title="-Xlp:codecache" class="md-nav__link">
+      -Xlp:codecache
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xlpobjectheap/" title="-Xlp:objectheap" class="md-nav__link">
+      -Xlp:objectheap
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmine/" title="-Xmaxe" class="md-nav__link">
+      -Xmaxe
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xminf/" title="-Xmaxf" class="md-nav__link">
+      -Xmaxf
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmint/" title="-Xmaxt" class="md-nav__link">
+      -Xmaxt
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmca/" title="-Xmca" class="md-nav__link">
+      -Xmca
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmca/" title="-Xmco" class="md-nav__link">
+      -Xmco
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmcrs/" title="-Xmcrs" class="md-nav__link">
+      -Xmcrs
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmine/" title="-Xmine" class="md-nav__link">
+      -Xmine
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xminf/" title="-Xminf" class="md-nav__link">
+      -Xminf
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmint/" title="-Xmint" class="md-nav__link">
+      -Xmint
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmn/" title="-Xmn" class="md-nav__link">
+      -Xmn
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmn/" title="-Xmns" class="md-nav__link">
+      -Xmns
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmn/" title="-Xmnx" class="md-nav__link">
+      -Xmnx
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmo/" title="-Xmo" class="md-nav__link">
+      -Xmo
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmo/" title="-Xmoi" class="md-nav__link">
+      -Xmoi
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmo/" title="-Xmos" class="md-nav__link">
+      -Xmos
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmo/" title="-Xmox" class="md-nav__link">
+      -Xmox
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmr/" title="-Xmr" class="md-nav__link">
+      -Xmr
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmr/" title="-Xmrx" class="md-nav__link">
+      -Xmrx
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xms/" title="-Xms" class="md-nav__link">
+      -Xms
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xmso/" title="-Xmso" class="md-nav__link">
+      -Xmso
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xms/" title="-Xmx" class="md-nav__link">
+      -Xmx
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xaot/" title="-Xnoaot" class="md-nav__link">
+      -Xnoaot
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xclassgc/" title="-Xnoclassgc" class="md-nav__link">
+      -Xnoclassgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcompactexplicitgc/" title="-Xnocompactexplicitgc" class="md-nav__link">
+      -Xnocompactexplicitgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcompactgc/" title="-Xnocompactgc" class="md-nav__link">
+      -Xnocompactgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xcompressedrefs/" title="-Xnocompressedrefs" class="md-nav__link">
+      -Xnocompressedrefs
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xjit/" title="-Xnojit" class="md-nav__link">
+      -Xnojit
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xlinenumbers/" title="-Xnolinenumbers" class="md-nav__link">
+      -Xnolinenumbers
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xloa/" title="-Xnoloa" class="md-nav__link">
+      -Xnoloa
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xsigcatch/" title="-Xnosigcatch" class="md-nav__link">
+      -Xnosigcatch
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xsigchain/" title="-Xnosigchain" class="md-nav__link">
+      -Xnosigchain
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xnumanone/" title="-Xnuma:none" class="md-nav__link">
+      -Xnuma:none
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xoptionsfile/" title="-Xoptionsfile" class="md-nav__link">
+      -Xoptionsfile
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xquickstart/" title="-Xquickstart" class="md-nav__link">
+      -Xquickstart
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xrdbginfo/" title="-Xrdbginfo" class="md-nav__link">
+      -Xrdbginfo
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xrs/" title="-Xrs" class="md-nav__link">
+      -Xrs
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xsamplingexpirationtime/" title="-XsamplingExpirationTime" class="md-nav__link">
+      -XsamplingExpirationTime
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xscdmx/" title="-Xscdmx" class="md-nav__link">
+      -Xscdmx
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xscminaot/" title="-Xscmaxaot" class="md-nav__link">
+      -Xscmaxaot
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xscminjitdata/" title="-Xscmaxjitdata" class="md-nav__link">
+      -Xscmaxjitdata
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xscminaot/" title="-Xscminaot" class="md-nav__link">
+      -Xscminaot
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xscminjitdata/" title="-Xscminjitdata" class="md-nav__link">
+      -Xscminjitdata
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xscmx/" title="-Xscmx" class="md-nav__link">
+      -Xscmx
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xshareclasses/" title="-Xshareclasses" class="md-nav__link">
+      -Xshareclasses
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xsigcatch/" title="-Xsigcatch" class="md-nav__link">
+      -Xsigcatch
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xsigchain/" title="-Xsigchain" class="md-nav__link">
+      -Xsigchain
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xsignal/" title="-Xsignal" class="md-nav__link">
+      -Xsignal
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xsoftmx/" title="-Xsoftmx" class="md-nav__link">
+      -Xsoftmx
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xsoftrefthreshold/" title="-Xsoftrefthreshold" class="md-nav__link">
+      -Xsoftrefthreshold
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xss/" title="-Xss" class="md-nav__link">
+      -Xss
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xss/" title="-Xssi" class="md-nav__link">
+      -Xssi
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xtgc/" title="-Xtgc" class="md-nav__link">
+      -Xtgc
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xthr/" title="-Xthr" class="md-nav__link">
+      -Xthr
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xtlhprefetch/" title="-XtlhPrefetch" class="md-nav__link">
+      -XtlhPrefetch
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xtrace/" title="-Xtrace" class="md-nav__link">
+      -Xtrace
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xtunevirtualized/" title="-Xtune:virtualized" class="md-nav__link">
+      -Xtune:virtualized
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xverbosegclog/" title="-Xverbosegclog" class="md-nav__link">
+      -Xverbosegclog
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xverify/" title="-Xverify" class="md-nav__link">
+      -Xverify
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xzero/" title="-Xzero" class="md-nav__link">
+      -Xzero
+    </a>
+  </li>
+
+        
+      </ul>
+    </nav>
+  </li>
+
+        
+          
+          
+          
+
+  
+
+
+  <li class="md-nav__item md-nav__item--active md-nav__item--nested">
+    
+      <input class="md-toggle md-nav__toggle" data-md-toggle="nav-9-6" type="checkbox" id="nav-9-6" checked>
+    
+    <label class="md-nav__link" for="nav-9-6">
+      JVM -XX: options
+    </label>
+    <nav class="md-nav" data-md-component="collapsible" data-md-level="2">
+      <label class="md-nav__title" for="nav-9-6">
+        JVM -XX: options
+      </label>
+      <ul class="md-nav__list" data-md-scrollfix>
+        
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xx_jvm_commands/" title="Using -XX options" class="md-nav__link">
+      Using -XX options
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxactiveprocessorcount/" title="-XXActiveProcessorCount" class="md-nav__link">
+      -XXActiveProcessorCount
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxallowvmshutdown/" title="-XXallowvmshutdown" class="md-nav__link">
+      -XXallowvmshutdown
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxcodecachetotal/" title="-XX:codecachetotal" class="md-nav__link">
+      -XX:codecachetotal
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxdisableexplicitgc/" title="-XX:[+|-]DisableExplicitGC" class="md-nav__link">
+      -XX:[+|-]DisableExplicitGC
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxdisclaimjitscratch/" title="-XX:[+|-]DisclaimJitScratch" class="md-nav__link">
+      -XX:[+|-]DisclaimJitScratch
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxenablecpumonitor/" title="-XX:[+|-]EnableCPUMonitor" class="md-nav__link">
+      -XX:[+|-]EnableCPUMonitor
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxhandlesigxfsz/" title="-XX:[+|-]handleSIGXFSZ" class="md-nav__link">
+      -XX:[+|-]handleSIGXFSZ
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxheapdumponoutofmemory/" title="-XX:[+|-]HeapDumpOnOutOfMemory" class="md-nav__link">
+      -XX:[+|-]HeapDumpOnOutOfMemory
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxheapdumppath/" title="-XX:HeapDumpPath" class="md-nav__link">
+      -XX:HeapDumpPath
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxheapmanagementmxbeancompatibility/" title="-XX:[+|-]HeapManagementMXBeanCompatibility" class="md-nav__link">
+      -XX:[+|-]HeapManagementMXBeanCompatibility
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxidletuningcompactonidle/" title="-XX:[+|-]IdleTuningCompactOnIdle" class="md-nav__link">
+      -XX:[+|-]IdleTuningCompactOnIdle
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxidletuninggconidle/" title="-XX:[+|-]IdleTuningGcOnIdle" class="md-nav__link">
+      -XX:[+|-]IdleTuningGcOnIdle
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxidletuningminfreeheaponidle/" title="-XX:IdleTuningMinFreeHeapOnIdle" class="md-nav__link">
+      -XX:IdleTuningMinFreeHeapOnIdle
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxidletuningminidlewaittime/" title="-XX:IdleTuningMinIdleWaitTime" class="md-nav__link">
+      -XX:IdleTuningMinIdleWaitTime
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxignoreunrecognizedvmoptions/" title="-XX:[+|-]IgnoreUnrecognizedVMOptions" class="md-nav__link">
+      -XX:[+|-]IgnoreUnrecognizedVMOptions
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxinitialrampercentage/" title="-XX:InitialRAMPercentage" class="md-nav__link">
+      -XX:InitialRAMPercentage
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxinitialheapsize/" title="-XX:InitialHeapSize" class="md-nav__link">
+      -XX:InitialHeapSize
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxinterleavememory/" title="-XX:[+|-]InterleaveMemory" class="md-nav__link">
+      -XX:[+|-]InterleaveMemory
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxlazysymbolresolution/" title="-XX:[+|-]LazySymbolResolution" class="md-nav__link">
+      -XX:[+|-]LazySymbolResolution
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxmaxdirectmemorysize/" title="-XX:MaxDirectMemorySize" class="md-nav__link">
+      -XX:MaxDirectMemorySize
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxinitialheapsize/" title="-XX:MaxHeapSize" class="md-nav__link">
+      -XX:MaxHeapSize
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxmaxrampercentage/" title="-XX:MaxRAMPercentage" class="md-nav__link">
+      -XX:MaxRAMPercentage
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxnosuballoc32bitmem/" title="-XXnosuballoc32bitmem" class="md-nav__link">
+      -XXnosuballoc32bitmem
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxpagealigndirectmemory/" title="-XX:[+|-]PageAlignDirectMemory" class="md-nav__link">
+      -XX:[+|-]PageAlignDirectMemory
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+  
+
+
+  <li class="md-nav__item md-nav__item--active">
+    
+    <input class="md-toggle md-nav__toggle" data-md-toggle="toc" type="checkbox" id="toc">
+    
+      
+    
+    
+      <label class="md-nav__link md-nav__link--active" for="toc">
+        -XX:[+|-]PositiveIdentityHash
+      </label>
+    
+    <a href="./" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link md-nav__link--active">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+    
+      
+<nav class="md-nav md-nav--secondary">
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="toc">On this page ...</label>
+    <ul class="md-nav__list" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#syntax" title="Syntax" class="md-nav__link">
+    Syntax
+  </a>
+  
+</li>
+      
+      
+      
+      
+      
+    </ul>
+  
+</nav>
+    
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
+      -XX:[+|-]ReduceCPUMonitorOverhead
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxruntimeinstrumentation/" title="-XX:[+|-]RuntimeInstrumentation" class="md-nav__link">
+      -XX:[+|-]RuntimeInstrumentation
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxsethwprefetch/" title="-XXsetHWPrefetch" class="md-nav__link">
+      -XXsetHWPrefetch
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxshareclassesenablebci/" title="-XX:ShareClassesDisableBCI" class="md-nav__link">
+      -XX:ShareClassesDisableBCI
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxshareclassesenablebci/" title="-XX:ShareClassesEnableBCI" class="md-nav__link">
+      -XX:ShareClassesEnableBCI
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxsharedcachehardlimit/" title="-XX:SharedCacheHardLimit" class="md-nav__link">
+      -XX:SharedCacheHardLimit
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxstacktraceinthrowable/" title="-XX:-StackTraceInThrowable" class="md-nav__link">
+      -XX:-StackTraceInThrowable
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxthreadstacksize/" title="-XX:ThreadStackSize" class="md-nav__link">
+      -XX:ThreadStackSize
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxusecompressedoops/" title="-XX:[+|-]UseCompressedOops" class="md-nav__link">
+      -XX:[+|-]UseCompressedOops
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxusecontainersupport/" title="-XX:[+|-]UseContainerSupport" class="md-nav__link">
+      -XX:[+|-]UseContainerSupport
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxusenogc/" title="-XX:[+|-]UseNoGC" class="md-nav__link">
+      -XX:[+|-]UseNoGC
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxverboseverification/" title="-XX:[+|-]VerboseVerification" class="md-nav__link">
+      -XX:[+|-]VerboseVerification
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../xxvmlockclassloader/" title="-XX:[+|-]VMLockClassLoader" class="md-nav__link">
+      -XX:[+|-]VMLockClassLoader
+    </a>
+  </li>
+
+        
+      </ul>
+    </nav>
+  </li>
+
+        
+      </ul>
+    </nav>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item md-nav__item--nested">
+    
+      <input class="md-toggle md-nav__toggle" data-md-toggle="nav-10" type="checkbox" id="nav-10">
+    
+    <label class="md-nav__link" for="nav-10">
+      Tools
+    </label>
+    <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
+      <label class="md-nav__title" for="nav-10">
+        Tools
+      </label>
+      <ul class="md-nav__list" data-md-scrollfix>
+        
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../tool_jdmpview/" title="Dump viewer" class="md-nav__link">
+      Dump viewer
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../tool_traceformat/" title="Trace formatter" class="md-nav__link">
+      Trace formatter
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../tool_builder/" title="Option builder" class="md-nav__link">
+      Option builder
+    </a>
+  </li>
+
+        
+      </ul>
+    </nav>
+  </li>
+
+    
+      
+      
+      
+
+
+  <li class="md-nav__item md-nav__item--nested">
+    
+      <input class="md-toggle md-nav__toggle" data-md-toggle="nav-11" type="checkbox" id="nav-11">
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+    <label class="md-nav__link" for="nav-11">
+       Reference
+    </label>
+    <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
+      <label class="md-nav__title" for="nav-11">
+         Reference
+      </label>
+      <ul class="md-nav__list" data-md-scrollfix>
+        
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../openj9_support/" title="Supported environments" class="md-nav__link">
+      Supported environments
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../openj9_defaults/" title="Default settings" class="md-nav__link">
+      Default settings
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../openj9_directories/" title="Directory conventions" class="md-nav__link">
+      Directory conventions
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../messages_intro/" title="OpenJ9 messages" class="md-nav__link">
+      OpenJ9 messages
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
+    <a href="../env_var/" title="Environment variables" class="md-nav__link">
+      Environment variables
+    </a>
+  </li>
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+      </ul>
+    </nav>
+  </li>
+
+    
+      
+      
+      
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+  <li class="md-nav__item">
+    <a href="../legal/" title="Legal" class="md-nav__link">
+      Legal
+    </a>
+  </li>
+
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+  </ul>
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+            
+              <div class="md-sidebar md-sidebar--secondary" data-md-component="toc">
+                <div class="md-sidebar__scrollwrap">
+                  <div class="md-sidebar__inner">
+                    
+<nav class="md-nav md-nav--secondary">
+  
+  
+    
+  
+  
+    <label class="md-nav__title" for="toc">On this page ...</label>
+    <ul class="md-nav__list" data-md-scrollfix>
+      
+        <li class="md-nav__item">
+  <a href="#syntax" title="Syntax" class="md-nav__link">
+    Syntax
+  </a>
+  
+</li>
+      
+      
+      
+      
+      
+    </ul>
+  
+</nav>
+                  </div>
+                </div>
+              </div>
+            
+          
+          <div class="md-content">
+            <article class="md-content__inner md-typeset">
+              
+<!-- this adds 'pencil' icon to H1 so that you can edit the page directly in GitHub
+                
+                  <a href="https://github.com/eclipse/openj9-docs/edit/master/docs/xxpositiveidentityhash.md" title="Edit this page" class="md-icon md-content__icon">&#xE3C9;</a>
+                
+-->
+                
+                <!--
+* Copyright (c) 2017, 2018 IBM Corp. and others
+*
+* This program and the accompanying materials are made
+* available under the terms of the Eclipse Public License 2.0
+* which accompanies this distribution and is available at
+* https://www.eclipse.org/legal/epl-2.0/ or the Apache
+* License, Version 2.0 which accompanies this distribution and
+* is available at https://www.apache.org/licenses/LICENSE-2.0.
+*
+* This Source Code may also be made available under the
+* following Secondary Licenses when the conditions for such
+* availability set forth in the Eclipse Public License, v. 2.0
+* are satisfied: GNU General Public License, version 2 with
+* the GNU Classpath Exception [1] and GNU General Public
+* License, version 2 with the OpenJDK Assembly Exception [2].
+*
+* [1] https://www.gnu.org/software/classpath/license.html
+* [2] http://openjdk.java.net/legal/assembly-exception.html
+*
+* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH
+* Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
+-->
+
+<h1 id="-xx91-93positiveidentityhash">-XX:[+|-]PositiveIdentityHash</h1>
+<p>OpenJ9 allows both positive and negative identity hashcodes (<code>System.identityHashCode</code> / <code>Object.hashCode</code>). This is problematic for programs that incorrectly assume hashcodes can only be positive.</p>
+<p>When enabled, this option limits identity hash codes to non-negative values.</p>
+<p>Because limiting identity hash codes to non-negative values can have an impact on the performance of hash-intensive operations, this option is not enabled by default.</p>
+<h2 id="syntax">Syntax</h2>
+<div class="codehilite"><pre><span></span>    -XX:[+|-]PositiveIdentityHash
+</pre></div>
+
+
+<table>
+<thead>
+<tr>
+<th>Setting</th>
+<th>Effect</th>
+<th align="center">Default</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td><code>-XX:+PositiveIdentityHash</code></td>
+<td>Enable</td>
+<td align="center"></td>
+</tr>
+<tr>
+<td><code>-XX:-PositiveIdentityHash</code></td>
+<td>Disable</td>
+<td align="center"><i class="fa fa-check" aria-hidden="true"></i><span class="sr-only">yes</span></td>
+</tr>
+</tbody>
+</table>
+<!-- ==== END OF TOPIC ==== xxpositiveidentityhash.md ==== -->
+                
+                  
+                
+              
+<!--
+              
+                
+              
+-->
+              <!-- This block was originally in the theme's 'footer.html' partial file. It has been moved here in part to resolve issues with the footer being too large. -->
+              
+                <!--
+* Copyright (c) 2017, 2018 IBM Corp. and others
+*
+* This program and the accompanying materials are made
+* available under the terms of the Eclipse Public License 2.0
+* which accompanies this distribution and is available at
+* https://www.eclipse.org/legal/epl-2.0/ or the Apache
+* License, Version 2.0 which accompanies this distribution and
+* is available at https://www.apache.org/licenses/LICENSE-2.0.
+*
+* This Source Code may also be made available under the
+* following Secondary Licenses when the conditions for such
+* availability set forth in the Eclipse Public License, v. 2.0
+* are satisfied: GNU General Public License, version 2 with
+* the GNU Classpath Exception [1] and GNU General Public
+* License, version 2 with the OpenJDK Assembly Exception [2].
+*
+* [1] https://www.gnu.org/software/classpath/license.html
+* [2] http://openjdk.java.net/legal/assembly-exception.html
+*
+* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH
+* Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
+-->
+              
+                <div class="md-footer-nav">
+                  <nav class="md-footer-nav__inner md-grid">
+                    <!-- Separator -->
+                    <img alt="" src="../cr/rule.png">
+                    
+                      <a href="../xxpagealigndirectmemory/" title="-XX:[+|-]PageAlignDirectMemory" class="md-flex md-footer-nav__link md-footer-nav__link--prev" rel="prev">
+                        <div class="md-flex__cell md-flex__cell--shrink">
+                          <i class="md-icon md-icon--arrow-back md-footer-nav__button"></i>
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+                        <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title">
+                          <span class="md-flex__ellipsis">
+                            <span class="md-footer-nav__direction">
+                              Previous
+                            </span>
+                            -XX:[+|-]PageAlignDirectMemory
+                          </span>
+                        </div>
+                      </a>
+                    
+                    
+                      <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next">
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+                              Next
+                            </span>
+                            -XX:[+|-]ReduceCPUMonitorOverhead
+                          </span>
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+                        <div class="md-flex__cell md-flex__cell--shrink">
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+      </main>
+      
+        <!--
+* Copyright (c) 2017, 2018 IBM Corp. and others
+*
+* This program and the accompanying materials are made
+* available under the terms of the Eclipse Public License 2.0
+* which accompanies this distribution and is available at
+* https://www.eclipse.org/legal/epl-2.0/ or the Apache
+* License, Version 2.0 which accompanies this distribution and
+* is available at https://www.apache.org/licenses/LICENSE-2.0.
+*
+* This Source Code may also be made available under the
+* following Secondary Licenses when the conditions for such
+* availability set forth in the Eclipse Public License, v. 2.0
+* are satisfied: GNU General Public License, version 2 with
+* the GNU Classpath Exception [1] and GNU General Public
+* License, version 2 with the OpenJDK Assembly Exception [2].
+*
+* [1] https://www.gnu.org/software/classpath/license.html
+* [2] http://openjdk.java.net/legal/assembly-exception.html
+*
+* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH
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+<footer class="md-footer">
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+  <div class="md-footer-meta md-typeset">
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+    
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+* which accompanies this distribution and is available at
+* https://www.eclipse.org/legal/epl-2.0/ or the Apache
+* License, Version 2.0 which accompanies this distribution and
+* is available at https://www.apache.org/licenses/LICENSE-2.0.
+*
+* This Source Code may also be made available under the
+* following Secondary Licenses when the conditions for such
+* availability set forth in the Eclipse Public License, v. 2.0
+* are satisfied: GNU General Public License, version 2 with
+* the GNU Classpath Exception [1] and GNU General Public
+* License, version 2 with the OpenJDK Assembly Exception [2].
+*
+* [1] https://www.gnu.org/software/classpath/license.html
+* [2] http://openjdk.java.net/legal/assembly-exception.html
+*
+* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH
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+
+  <div class="md-footer-social1">
+    
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
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+      <a href="https://github.com/eclipse/openj9" class="md-footer-social__link fa fa-github"></a>
+    
+      <a href="https://openj9.slack.com" class="md-footer-social__link fa fa-slack"></a>
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+      <span class="no-wrap"><i class="fa fa-chevron-circle-right f_mini" aria-hidden="true"></i><a class="dark-link" href="http://www.eclipse.org">Eclipse Foundation website</a></span>
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+      &nbsp; <span class="no-wrap"><i class="fa fa-chevron-circle-right f_mini" aria-hidden="true"></i><a class="dark-link" href="http://www.eclipse.org/legal/copyright.php">Copyright agent</a></span>
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+    </div>
+
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+      and
+      <a href="http://squidfunk.github.io/mkdocs-material/" title="Material for MkDocs">
+      Material for MkDocs</a><br/><br/>
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+
+</footer>
+      
+    </div>
+    
+      <script src="../assets/javascripts/application.abd7b172.js"></script>
+      
+        
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+      
+      <script>app.initialize({version:"0.17.2",url:{base:".."}})</script>
+      
+    
+    
+      
+    
+  </body>
+</html>
\ No newline at end of file
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index fb1c1c2..abc6000 100644
--- a/xxreducecpumonitoroverhead/index.html
+++ b/xxreducecpumonitoroverhead/index.html
@@ -2423,6 +2423,18 @@
           
           
 
+
+  <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
   
 
 
@@ -2944,7 +2956,7 @@
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-                      <a href="../xxpagealigndirectmemory/" title="-XX:[+|-]PageAlignDirectMemory" class="md-flex md-footer-nav__link md-footer-nav__link--prev" rel="prev">
+                      <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-flex md-footer-nav__link md-footer-nav__link--prev" rel="prev">
                         <div class="md-flex__cell md-flex__cell--shrink">
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                         </div>
@@ -2953,7 +2965,7 @@
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                               Previous
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-                            -XX:[+|-]PageAlignDirectMemory
+                            -XX:[+|-]PositiveIdentityHash
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index 5a5e795..834f932 100644
--- a/xxruntimeinstrumentation/index.html
+++ b/xxruntimeinstrumentation/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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index 0c8829f..9603458 100644
--- a/xxsethwprefetch/index.html
+++ b/xxsethwprefetch/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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index 154940d..2d6fe83 100644
--- a/xxshareclassesenablebci/index.html
+++ b/xxshareclassesenablebci/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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index d3457f0..f8223bf 100644
--- a/xxsharedcachehardlimit/index.html
+++ b/xxsharedcachehardlimit/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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--- a/xxstacktraceinthrowable/index.html
+++ b/xxstacktraceinthrowable/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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diff --git a/xxthreadstacksize/index.html b/xxthreadstacksize/index.html
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--- a/xxthreadstacksize/index.html
+++ b/xxthreadstacksize/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
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+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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--- a/xxusecompressedoops/index.html
+++ b/xxusecompressedoops/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
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+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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--- a/xxusecontainersupport/index.html
+++ b/xxusecontainersupport/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
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+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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--- a/xxusenogc/index.html
+++ b/xxusenogc/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
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+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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index 596721a..5affb80 100644
--- a/xxverboseverification/index.html
+++ b/xxverboseverification/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
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+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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index 5943312..14f3b19 100644
--- a/xxvmlockclassloader/index.html
+++ b/xxvmlockclassloader/index.html
@@ -2425,6 +2425,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
       -XX:[+|-]ReduceCPUMonitorOverhead
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diff --git a/xzero/index.html b/xzero/index.html
index b076190..383c092 100644
--- a/xzero/index.html
+++ b/xzero/index.html
@@ -2463,6 +2463,18 @@
 
 
   <li class="md-nav__item">
+    <a href="../xxpositiveidentityhash/" title="-XX:[+|-]PositiveIdentityHash" class="md-nav__link">
+      -XX:[+|-]PositiveIdentityHash
+    </a>
+  </li>
+
+        
+          
+          
+          
+
+
+  <li class="md-nav__item">
     <a href="../xxreducecpumonitoroverhead/" title="-XX:[+|-]ReduceCPUMonitorOverhead" class="md-nav__link">
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