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       <ul class="md-nav__list" data-md-scrollfix>


   <li class="md-nav__item">
     <a href="../interface_jvmti/" title="JVMTI" class="md-nav__link">
       JVMTI
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../interface_dtfj/" title="DTFJ" class="md-nav__link">
       DTFJ
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../interface_lang_management/" title="Language Management" class="md-nav__link">
       Language Management
     </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-13" type="checkbox" id="nav-13">

     <label class="md-nav__link" for="nav-13">
       Command-line options
     </label>
     <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
       <label class="md-nav__title" for="nav-13">
         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="Switching to OpenJ9" class="md-nav__link">
       Switching to OpenJ9
     </a>
   </li>


   <li class="md-nav__item md-nav__item--nested">

       <input class="md-toggle md-nav__toggle" data-md-toggle="nav-13-4" type="checkbox" id="nav-13-4">

     <label class="md-nav__link" for="nav-13-4">
       System property options
     </label>
     <nav class="md-nav" data-md-component="collapsible" data-md-level="2">
       <label class="md-nav__title" for="nav-13-4">
         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="../dcomibmgpudisable/" title="-Dcom.ibm.gpu.disable" class="md-nav__link">
       -Dcom.ibm.gpu.disable
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../dcomibmgpuenable/" title="-Dcom.ibm.gpu.enable" class="md-nav__link">
       -Dcom.ibm.gpu.enable
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../dcomibmgpuverbose/" title="-Dcom.ibm.gpu.verbose" class="md-nav__link">
       -Dcom.ibm.gpu.verbose
     </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="../dcomibmtoolsattachcommand_timeout/" title="-Dcom.ibm.tools.attach.command_timeout" class="md-nav__link">
       -Dcom.ibm.tools.attach.command_timeout
     </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="../dcomibmtoolsattachlogging/" title="-Dcom.ibm.tools.attach.logging" class="md-nav__link">
       -Dcom.ibm.tools.attach.logging
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../dcomibmtoolsattachlogname/" title="-Dcom.ibm.tools.attach.log.name" class="md-nav__link">
       -Dcom.ibm.tools.attach.log.name
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../dcomibmtoolsattachshutdown_timeout/" title="-Dcom.ibm.tools.attach.shutdown_timeout" class="md-nav__link">
       -Dcom.ibm.tools.attach.shutdown_timeout
     </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>


   <li class="md-nav__item">
     <a href="../djavalangstringsubstringnocopy/" title="-Djava.lang.string.substring.nocopy" class="md-nav__link">
       -Djava.lang.string.substring.nocopy
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../djavalangstringbuffergrowaggressively/" title="-Djava.lang.stringBuffer.growAggressively" class="md-nav__link">
       -Djava.lang.stringBuffer.growAggressively
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../djdknativecbc/" title="-Djdk.nativeCBC" class="md-nav__link">
       -Djdk.nativeCBC
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../djdknativechacha20/" title="-Djdk.nativeChaCha20" class="md-nav__link">
       -Djdk.nativeChaCha20
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../djdknativecrypto/" title="-Djdk.nativeCrypto" class="md-nav__link">
       -Djdk.nativeCrypto
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../djdknativedigest/" title="-Djdk.nativeDigest" class="md-nav__link">
       -Djdk.nativeDigest
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../djdknativegcm/" title="-Djdk.nativeGCM" class="md-nav__link">
       -Djdk.nativeGCM
     </a>
   </li>


   <li class="md-nav__item">
     <a href="../djdknativersa/" title="-Djdk.nativeRSA" class="md-nav__link">
       -Djdk.nativeRSA
     </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-13-5" type="checkbox" id="nav-13-5">

     <label class="md-nav__link" for="nav-13-5">
       JVM -X options
     </label>
     <nav class="md-nav" data-md-component="collapsible" data-md-level="2">
       <label class="md-nav__title" for="nav-13-5">
         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="../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="../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="../xrs/" title="-Xrs" class="md-nav__link">
       -Xrs
     </a>
   </li>


   <li class="md-nav__item">
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       -XX:[+|-]HandleSIGXFSZ
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       -XX:[+|-]HandleSIGABRT
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       -XX:HeapDumpPath
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       -XX:[+|-]IgnoreUnrecognizedVMOptions
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       -XX:InitialHeapSize
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       -XX:[+|-]JITInlineWatches
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       -XX:MaxDirectMemorySize
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       -XX:MaxHeapSize
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       -XX:MaxRAMPercentage
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       -XX:OnOutOfMemoryError
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       -XX:[+|-]OriginalJDK8HeapSizeCompatibilityMode
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     <a href="../xxpagealigndirectmemory/" title="-XX:[+|-]PageAlignDirectMemory" class="md-nav__link">
       -XX:[+|-]PageAlignDirectMemory
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       -XX:ParallelCMSThreads
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       -XX:ParallelGCThreads
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       -XX:[+|-]PortableSharedCache
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       -XX:[+|-]PositiveIdentityHash
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       -XX:[+|-]PrintCodeCache
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     <a href="../xxprintflagsfinal/" title="-XX:[+|-]PrintFlagsFinal" class="md-nav__link">
       -XX:[+|-]PrintFlagsFinal
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   <li class="md-nav__item">
     <a href="../xxreadipinfoforras/" title="-XX:[+|-]ReadIPInfoForRAS" class="md-nav__link">
       -XX:[+|-]ReadIPInfoForRAS
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       -XX:[+|-]ReduceCPUMonitorOverhead
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       -XX:[+|-]RuntimeInstrumentation
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     <a href="../xxsethwprefetch/" title="-XXsetHWPrefetch" class="md-nav__link">
       -XXsetHWPrefetch
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       -XX:[+|-]ShareAnonymousClasses
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       -XX:ShareClassesDisableBCI
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       -XX:SharedCacheHardLimit
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       -XX:[+|-]ShareUnsafeClasses
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       -XX:[+|-]TransparentHugePage
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       -XX:[+|-]UseCompressedOops
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       -XX:[+|-]UseContainerSupport
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       -XX:[+|-]UseGCStartupHints
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       -XX:[+|-]UseNoGC
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       -XX:[+|-]VerboseVerification
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 <h1 id="whats-new-in-version-0210">What's new in version 0.21.0</h1>
 <p>The following new features and notable changes since v 0.20.0 are included in this release:</p>
 <ul>
 <li><a href="#binaries-and-supported-environments">New binaries and changes to supported environments</a></li>
 <li><a href="#application-programming-interface-api-documentation">Application Programming Interface (API) documentation</a></li>
 <li><a href="#performance-improvements">Performance improvements</a></li>
 <li><a href="#new-xx-handlesigabrt-option-added">New <code>-XX:[+|-]HandleSIGABRT</code> option added</a></li>
 <li><a href="#new-xx-printflagsfinal-option-added">New <code>-XX:[+|-]PrintFlagsFinal</code> option added</a></li>
 <li><a href="#update-to-noclassdeffounderror-exception-message">Update to <code>NoClassDefFoundError</code> exception message</a></li>
 <li><a href="#macos-shared-libraries-version-updated">macOS&reg; shared libraries version updated</a></li>
 </ul>
 <h2 id="features-and-changes">Features and changes</h2>
 <h3 id="binaries-and-supported-environments">Binaries and supported environments</h3>
 <p>OpenJ9 release 0.21.0 supports OpenJDK 8, 11, and 14. Binaries are available from the AdoptOpenJDK community at the following links:</p>
 <ul>
 <li><a href="https://adoptopenjdk.net/archive.html?variant=openjdk8&amp;jvmVariant=openj9">OpenJDK version 8</a></li>
 <li><a href="https://adoptopenjdk.net/archive.html?variant=openjdk11&amp;jvmVariant=openj9">OpenJDK version 11</a></li>
 <li><a href="https://adoptopenjdk.net/archive.html?variant=openjdk14&amp;jvmVariant=openj9">OpenJDK version 14</a></li>
 </ul>
 <p>To learn more about support for OpenJ9 releases, including OpenJDK levels and platform support, see <a href="../openj9_support/">Supported environments</a>.</p>
 <h3 id="application-programming-interface-api-documentation">Application Programming Interface (API) documentation</h3>
 <p>API documentation that applies to OpenJ9 can now be found in this user documentation for both JDK 8 and JDK 11. The documentation includes links to Oracle API documentation for information that is not specific to OpenJ9. See <a href="../api-overview/">API overview</a>.</p>
 <h3 id="performance-improvements">Performance improvements</h3>
 <ul>
 <li>
 <p>If the <a href="../xtunevirtualized/">-Xtune:virtualized</a> command line option is used, the default JIT scratch memory limit is now reduced from 256 MB to 16 MB. This reduces the peak from JIT compilation activity, allowing you to size containers more easily, based on the particular application's memory usage.</p>
 </li>
 <li>
 <p>If the JIT is running in a container and no swap space is defined, the JIT dynamically adjusts its scratch memory consumption based on the amount of free physical memory available, to avoid out-of-memory (OOM) occurrences.</p>
 </li>
 <li>
 <p>Several performance features were added to the AArch64 JIT compiler implementation that led to a throughput improvement on multiple applications of at least 20%. The most notable improvements were seen in global register allocation, recompilation (without profiling), CUDA support, concurrent scavenge GC policy, and the inlined code sequence for object allocations.</p>
 </li>
 </ul>
 <h3 id="new-xx-handlesigabrt-option-added">New <code>-XX:[+|-]HandleSIGABRT</code> option added</h3>
 <p>This option affects the handling of the operating system signal <code>SIGABRT</code>. For compatibility with the reference implementation, set <code>-XX:-HandleSIGABRT</code>. For more information, see <a href="../xxhandlesigabrt/"><code>-XX:[+|-]HandleSIGABRT</code></a>. </p>
 <h3 id="new-xx-printflagsfinal-option-added">New <code>-XX:[+|-]PrintFlagsFinal</code> option added</h3>
 <p>This release provides an initial implementation of the <code>-XX:[+|-]PrintFlagsFinal</code> option. It is currently incomplete and outputs only a subset of parameters. Over time, we expect more options to be added to the output. See <a href="../xxprintflagsfinal/"><code>-XX:[+|-]PrintFlagsFinal</code></a> for more details about this option.</p>
 <h3 id="update-to-noclassdeffounderror-exception-message">Update to <code>NoClassDefFoundError</code> exception message</h3>
 <p>The order in which class names are printed in a <code>NoClassDefFoundError</code> exception message now matches the output reported by HotSpot.</p>
 <p>For example, in the following exception message:</p>
 <pre><code>java.lang.NoClassDefFoundError: mypackage/Main (wrong name: Main)
 </code></pre>

 <p><code>mypackage/Main</code> is the class name encountered by the VM in the <code>.class</code> file, but "wrong name" <code>Main</code> was the provided class name. Prior to this update to the exception message, the encountered class name and the provided class name were swapped in the <code>NoClassDefFoundError</code> exception message.</p>
 <h3 id="macos-shared-libraries-version-updated">macOS shared libraries version updated</h3>
 <p>The version information for shared libraries on macOS has been updated from 0.0.0 to 1.0.0. If an application has linked against a shared library from a previous OpenJ9 release, it needs to be re-linked against the new release. Failure to re-link causes an error <code>Incompatible library version</code>, <code>requires version 0.0.0</code>.</p>
 <h2 id="full-release-information">Full release information</h2>
 <p>To see a complete list of changes between Eclipse OpenJ9 v 0.20.0 and v 0.21.0 releases, see the <a href="https://github.com/eclipse/openj9/blob/master/doc/release-notes/0.21/0.21.md">Release notes</a>.</p>
 <!-- ==== END OF TOPIC ==== version0.21.md ==== -->


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