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| <meta name="keywords" content="mmObjectAccessBarrier"> |
| <meta name="keywords" content="getObjectHashCode()"> |
| <meta name="keywords" content="getFinalizeLink()"> |
| <meta name="keywords" content="getOwnableSynchronizerLink()"> |
| <meta name="keywords" content="isObjectInOwnableSynchronizerList()"> |
| <meta name="keywords" content="getReferenceLink()"> |
| <meta name="keywords" content="getLockword()"> |
| <meta name="keywords" content="getMonitor()"> |
| <meta name="keywords" content="convertPointerFromToken()"> |
| <meta name="keywords" content="convertTokenFromPointer()"> |
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| <p>Summary:</p> |
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| <p>Detail:</p> |
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| <li><a href="#field-detail">Field</a></li> |
| <li>Constr</li> |
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| <li>Summary: </li> |
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| <li>Constr | </li> |
| <li><a href="#method-summary">Method</a></li> |
| </ul> |
| <ul class="sub-nav-list"> |
| <li>Detail: </li> |
| <li><a href="#field-detail">Field</a> | </li> |
| <li>Constr | </li> |
| <li><a href="#method-detail">Method</a></li> |
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| <div class="sub-title"><span class="module-label-in-type">Module</span> <a href="../../../../../module-summary.html">openj9.dtfj</a></div> |
| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">com.ibm.j9ddr.vm29.j9</a></div> |
| <h1 title="Class ObjectAccessBarrier" class="title">Class ObjectAccessBarrier</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">java.lang.Object</a> |
| <div class="inheritance">com.ibm.j9ddr.vm29.j9.ObjectAccessBarrier</div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public final class </span><span class="element-name type-name-label">ObjectAccessBarrier</span> |
| <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></span></div> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li> |
| <section class="field-summary" id="field-summary"> |
| <h2>Field Summary</h2> |
| <div class="caption"><span>Fields</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Field</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>protected static final <a href="gc/MMObjectAccessBarrier.html" title="class in com.ibm.j9ddr.vm29.j9.gc">MMObjectAccessBarrier</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#mmObjectAccessBarrier" class="member-name-link">mmObjectAccessBarrier</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
| <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div> |
| <div id="method-summary-table.tabpanel" role="tabpanel"> |
| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#convertPointerFromToken(long)" class="member-name-link">convertPointerFromToken</a><wbr>(long token)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Converts token (e.g. compressed pointer value) into real heap pointer.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static long</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#convertTokenFromPointer(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)" class="member-name-link">convertTokenFromPointer</a><wbr>(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer pointer)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Converts real heap pointer into token (e.g. compressed pointer value).</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getFinalizeLink(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)" class="member-name-link">getFinalizeLink</a><wbr>(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Fetch the finalize link field of object.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectMonitorPointer</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getLockword(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)" class="member-name-link">getLockword</a><wbr>(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Return the lockword for the given object, or NULL if it does not have a lockword.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="ObjectMonitor.html" title="class in com.ibm.j9ddr.vm29.j9">ObjectMonitor</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getMonitor(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)" class="member-name-link">getMonitor</a><wbr>(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Return an object representing the monitor for the given object, or NULL if it does not have a lockword/monitor.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="../types/I32.html" title="class in com.ibm.j9ddr.vm29.types">I32</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getObjectHashCode(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)" class="member-name-link">getObjectHashCode</a><wbr>(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Determine the basic hash code for the specified object.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getOwnableSynchronizerLink(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)" class="member-name-link">getOwnableSynchronizerLink</a><wbr>(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Fetch the ownableSynchronizer link field of object.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getReferenceLink(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)" class="member-name-link">getReferenceLink</a><wbr>(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> |
| <div class="block">Fetch the reference link field of the specified reference object.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#isObjectInOwnableSynchronizerList(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)" class="member-name-link">isObjectInOwnableSynchronizerList</a><wbr>(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods declared in class java.lang.<a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link" target="_blank">clone</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank">equals</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link" target="_blank">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link" target="_blank">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link" target="_blank">notify</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link" target="_blank">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link" target="_blank">toString</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <li> |
| <section class="field-details" id="field-detail"> |
| <h2>Field Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="mmObjectAccessBarrier"> |
| <h3>mmObjectAccessBarrier</h3> |
| <div class="member-signature"><span class="modifiers">protected static final</span> <span class="return-type"><a href="gc/MMObjectAccessBarrier.html" title="class in com.ibm.j9ddr.vm29.j9.gc">MMObjectAccessBarrier</a></span> <span class="element-name">mmObjectAccessBarrier</span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="getObjectHashCode(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <h3>getObjectHashCode</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="../types/I32.html" title="class in com.ibm.j9ddr.vm29.types">I32</a></span> <span class="element-name">getObjectHashCode</span><wbr><span class="parameters">(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</span> |
| throws <span class="exceptions"><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></span></div> |
| <div class="block">Determine the basic hash code for the specified object.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>object</code> - [in] the object to be hashed</dd> |
| <dt>Returns:</dt> |
| <dd>the persistent, basic hash code for the object</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getFinalizeLink(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <h3>getFinalizeLink</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type">com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</span> <span class="element-name">getFinalizeLink</span><wbr><span class="parameters">(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</span> |
| throws <span class="exceptions"><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></span></div> |
| <div class="block">Fetch the finalize link field of object.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>object</code> - [in] the object to read</dd> |
| <dt>Returns:</dt> |
| <dd>the value stored in the object's finalizeLink field</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getOwnableSynchronizerLink(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <h3>getOwnableSynchronizerLink</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type">com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</span> <span class="element-name">getOwnableSynchronizerLink</span><wbr><span class="parameters">(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</span> |
| throws <span class="exceptions"><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></span></div> |
| <div class="block">Fetch the ownableSynchronizer link field of object.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>object</code> - [in] the object to read</dd> |
| <dt>Returns:</dt> |
| <dd>the value stored in the object's ownableSynchronizer field</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="isObjectInOwnableSynchronizerList(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <h3>isObjectInOwnableSynchronizerList</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type">com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</span> <span class="element-name">isObjectInOwnableSynchronizerList</span><wbr><span class="parameters">(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</span> |
| throws <span class="exceptions"><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></span></div> |
| <dl class="notes"> |
| <dt>Throws:</dt> |
| <dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getReferenceLink(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <h3>getReferenceLink</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type">com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</span> <span class="element-name">getReferenceLink</span><wbr><span class="parameters">(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</span> |
| throws <span class="exceptions"><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></span></div> |
| <div class="block">Fetch the reference link field of the specified reference object.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>object</code> - the object to read</dd> |
| <dt>Returns:</dt> |
| <dd>the value stored in the object's reference link field</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getLockword(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <h3>getLockword</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type">com.ibm.j9ddr.vm29.pointer.generated.J9ObjectMonitorPointer</span> <span class="element-name">getLockword</span><wbr><span class="parameters">(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</span> |
| throws <span class="exceptions"><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></span></div> |
| <div class="block">Return the lockword for the given object, or NULL if it does not have a lockword.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>object</code> - the object who's lockword we are after</dd> |
| <dt>Returns:</dt> |
| <dd>An J9ObjectMonitorPointer representing NULL, a flatlock, or an inflated monitor.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getMonitor(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <h3>getMonitor</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="ObjectMonitor.html" title="class in com.ibm.j9ddr.vm29.j9">ObjectMonitor</a></span> <span class="element-name">getMonitor</span><wbr><span class="parameters">(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</span> |
| throws <span class="exceptions"><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></span></div> |
| <div class="block">Return an object representing the monitor for the given object, or NULL if it does not have a lockword/monitor.</div> |
| <dl class="notes"> |
| <dt>Throws:</dt> |
| <dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="convertPointerFromToken(long)"> |
| <h3>convertPointerFromToken</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type">com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer</span> <span class="element-name">convertPointerFromToken</span><wbr><span class="parameters">(long token)</span></div> |
| <div class="block">Converts token (e.g. compressed pointer value) into real heap pointer.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>the heap pointer value.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="convertTokenFromPointer(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <h3>convertTokenFromPointer</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type">long</span> <span class="element-name">convertTokenFromPointer</span><wbr><span class="parameters">(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer pointer)</span></div> |
| <div class="block">Converts real heap pointer into token (e.g. compressed pointer value).</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>the compressed pointer value.</dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
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