Google Git
Sign in
eclipse / www.eclipse.org / openj9 / docs / ce4605782f1cf7b26455da7a3e22166ad0165090 / . / dump_javadump / index.html
blob: bc9f5ea9cf791f6956588275657a2a6da16dfd62 [file] [log] [blame]
<!--
* 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/dump_javadump/">
<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="">
<meta name="lang:search.pipeline.trimmer" content="">
<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="">
<link rel="shortcut icon" href="../cr/oj9logo_img9.ico">
<meta name="generator" content="mkdocs-0.17.2, mkdocs-material-2.6.3">
<title>Java dump - </title>
<link rel="stylesheet" href="../assets/stylesheets/application.9b572555.css">
<link rel="stylesheet" href="../assets/stylesheets/application-palette.6079476c.css">
<script src="../assets/javascripts/modernizr.1aa3b519.js"></script>
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700|Roboto+Mono">
<style>body,input{font-family:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style>
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
<link rel="stylesheet" href="../stylesheets/oj9.css">
</head>
<body dir="" data-md-color-primary="cyan" data-md-color-accent="cyan">
<svg class="md-svg">
<defs>
<svg xmlns="http://www.w3.org/2000/svg" width="416" height="448"
viewBox="0 0 416 448" id="github">
<path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19-18.125
8.5-18.125-8.5-10.75-19-3.125-20.5 3.125-20.5 10.75-19 18.125-8.5
18.125 8.5 10.75 19 3.125 20.5zM320 304q0 10-3.125 20.5t-10.75
19-18.125 8.5-18.125-8.5-10.75-19-3.125-20.5 3.125-20.5 10.75-19
18.125-8.5 18.125 8.5 10.75 19 3.125 20.5zM360
304q0-30-17.25-51t-46.75-21q-10.25 0-48.75 5.25-17.75 2.75-39.25
2.75t-39.25-2.75q-38-5.25-48.75-5.25-29.5 0-46.75 21t-17.25 51q0 22 8
38.375t20.25 25.75 30.5 15 35 7.375 37.25 1.75h42q20.5 0
37.25-1.75t35-7.375 30.5-15 20.25-25.75 8-38.375zM416 260q0 51.75-15.25
82.75-9.5 19.25-26.375 33.25t-35.25 21.5-42.5 11.875-42.875 5.5-41.75
1.125q-19.5 0-35.5-0.75t-36.875-3.125-38.125-7.5-34.25-12.875-30.25-20.25-21.5-28.75q-15.5-30.75-15.5-82.75
0-59.25 34-99-6.75-20.5-6.75-42.5 0-29 12.75-54.5 27 0 47.5 9.875t47.25
30.875q36.75-8.75 77.25-8.75 37 0 70 8 26.25-20.5
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="#java-dump" 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--active md-nav__item--nested">
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-8" type="checkbox" id="nav-8" checked>
<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 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">
Java dump
</label>
<a href="./" title="Java dump" class="md-nav__link md-nav__link--active">
Java dump
</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="#title" title="TITLE" class="md-nav__link">
TITLE
</a>
</li>
<li class="md-nav__item">
<a href="#gpinfo" title="GPINFO" class="md-nav__link">
GPINFO
</a>
</li>
<li class="md-nav__item">
<a href="#envinfo" title="ENVINFO" class="md-nav__link">
ENVINFO
</a>
</li>
<li class="md-nav__item">
<a href="#nativememinfo" title="NATIVEMEMINFO" class="md-nav__link">
NATIVEMEMINFO
</a>
</li>
<li class="md-nav__item">
<a href="#meminfo" title="MEMINFO" class="md-nav__link">
MEMINFO
</a>
</li>
<li class="md-nav__item">
<a href="#locks" title="LOCKS" class="md-nav__link">
LOCKS
</a>
</li>
<li class="md-nav__item">
<a href="#threads" title="THREADS" class="md-nav__link">
THREADS
</a>
</li>
<li class="md-nav__item">
<a href="#hooks" title="HOOKS" class="md-nav__link">
HOOKS
</a>
</li>
<li class="md-nav__item">
<a href="#shared-classes" title="SHARED CLASSES" class="md-nav__link">
SHARED CLASSES
</a>
</li>
<li class="md-nav__item">
<a href="#classes" title="CLASSES" class="md-nav__link">
CLASSES
</a>
</li>
</ul>
</nav>
</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--nested">
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-9" type="checkbox" id="nav-9">
<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--nested">
<input class="md-toggle md-nav__toggle" data-md-toggle="nav-9-6" type="checkbox" id="nav-9-6">
<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">
<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">
<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>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../legal/" title="Legal" class="md-nav__link">
Legal
</a>
</li>
</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="#title" title="TITLE" class="md-nav__link">
TITLE
</a>
</li>
<li class="md-nav__item">
<a href="#gpinfo" title="GPINFO" class="md-nav__link">
GPINFO
</a>
</li>
<li class="md-nav__item">
<a href="#envinfo" title="ENVINFO" class="md-nav__link">
ENVINFO
</a>
</li>
<li class="md-nav__item">
<a href="#nativememinfo" title="NATIVEMEMINFO" class="md-nav__link">
NATIVEMEMINFO
</a>
</li>
<li class="md-nav__item">
<a href="#meminfo" title="MEMINFO" class="md-nav__link">
MEMINFO
</a>
</li>
<li class="md-nav__item">
<a href="#locks" title="LOCKS" class="md-nav__link">
LOCKS
</a>
</li>
<li class="md-nav__item">
<a href="#threads" title="THREADS" class="md-nav__link">
THREADS
</a>
</li>
<li class="md-nav__item">
<a href="#hooks" title="HOOKS" class="md-nav__link">
HOOKS
</a>
</li>
<li class="md-nav__item">
<a href="#shared-classes" title="SHARED CLASSES" class="md-nav__link">
SHARED CLASSES
</a>
</li>
<li class="md-nav__item">
<a href="#classes" title="CLASSES" class="md-nav__link">
CLASSES
</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/dump_javadump.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="java-dump">Java dump</h1>
<p>Java dumps, sometimes referred to as <em>Java cores</em>, are produced when the VM ends unexpectedly because of an operating system signal, <code>OutOfMemoryError</code> exception, or a user-initiated keystroke combination. You can also generate a Java dump by calling the Dump API programmatically from your application or specifying the <code>-Xdump:java</code> option on the command line.</p>
<p>Java dumps summarize the state of the VM when the event occurs, with most of the information relating to components of the VM.
The file is made up of a number of sections that provide different types of information. The information that follows describes
each section and provides examples to help you interpret the data.</p>
<h2 id="title">TITLE</h2>
<p>The first section of the Java dump file provides information about the event that triggered the production of the dump.
In the following example you can see that a <code>vmstop</code> event triggered the dump at a specified date and time.</p>
<div class="codehilite"><pre><span></span>0SECTION TITLE subcomponent dump routine
NULL ===============================
1TICHARSET UTF-8
1TISIGINFO Dump Event &quot;vmstop&quot; (00000002) Detail &quot;#0000000000000000&quot; received
1TIDATETIME Date: 2018/08/30 at 21:55:47:607
1TINANOTIME System nanotime: 22012355276134
1TIFILENAME Javacore filename: /home/doc-javacore/javacore.20180830.215547.30285.0001.txt
1TIREQFLAGS Request Flags: 0x81 (exclusive+preempt)
1TIPREPSTATE Prep State: 0x106 (vm_access+exclusive_vm_access+trace_disabled)
</pre></div>
<h2 id="gpinfo">GPINFO</h2>
<p>The GPINFO section provides general information about the system that the JVM is running on. The following example is taken
from a Java dump that was generated on a Linux system.</p>
<div class="codehilite"><pre><span></span>NULL ------------------------------------------------------------------------
0SECTION GPINFO subcomponent dump routine
NULL ================================
2XHOSLEVEL OS Level : Linux 3.10.0-862.11.6.el7.x86_64
2XHCPUS Processors -
3XHCPUARCH Architecture : amd64
3XHNUMCPUS How Many : 4
3XHNUMASUP NUMA is either not supported or has been disabled by user
NULL
1XHERROR2 Register dump section only produced for SIGSEGV, SIGILL or SIGFPE.
NULL
</pre></div>
<p>The content of this section can vary, depending on the cause of the dump. For example, if the dump was caused by a
general protection fault (gpf), the library in which the crash occurred is also recorded, together with a value shown
as <code>VM flags</code>. This value can provide some clues about which component of the VM might have been involved. Look for the
following line in the output:</p>
<div class="codehilite"><pre><span></span>1XHFLAGS VM flags:0000000000000000
</pre></div>
<p>The hexadecimal number recorded for <code>VM flags</code> ends in MSSSS, where M is the VM component and SSSS is component-specific code as shown in the following table:</p>
<table>
<thead>
<tr>
<th>Component</th>
<th>Code value</th>
</tr>
</thead>
<tbody>
<tr>
<td>INTERPRETER</td>
<td>0x10000</td>
</tr>
<tr>
<td>GC</td>
<td>0x20000</td>
</tr>
<tr>
<td>GROW_STACK</td>
<td>0x30000</td>
</tr>
<tr>
<td>JNI</td>
<td>0x40000</td>
</tr>
<tr>
<td>JIT_CODEGEN</td>
<td>0x50000</td>
</tr>
<tr>
<td>BCVERIFY</td>
<td>0x60000</td>
</tr>
<tr>
<td>RTVERIFY</td>
<td>0x70000</td>
</tr>
<tr>
<td>SHAREDCLASSES</td>
<td>0x80000</td>
</tr>
</tbody>
</table>
<p>A value of <code>0000000000000000</code> (0x00000) indicates that a crash occurred outside of the VM.</p>
<h2 id="envinfo">ENVINFO</h2>
<p>This section contains useful information about the environment in which the crash took place, including the following data:</p>
<ul>
<li>Java version (<code>1CIJAVAVERSION</code>)</li>
<li>OpenJ9 VM and subcomponent version information (<code>1CIVMVERSION</code>, <code>1CIJ9VMVERSION</code>, <code>1CIJITVERSION</code>, <code>1CIOMRVERSION</code>, <code>1CIJCLVERSION</code>)</li>
<li>VM start time (<code>1CISTARTTIME</code>) and process information (<code>1CIPROCESSID</code>)</li>
<li>Java home (<code>1CIJAVAHOMEDIR</code>) and DLL (<code>1CIJAVADLLDIR</code>) directories</li>
<li>User arguments passed on the command line (<code>1CIUSERARG</code>)</li>
<li>User limits imposed by the system (<code>1CIUSERLIMITS</code>)</li>
<li>Environment variables in place (<code>1CIENVVARS</code>)</li>
<li>System information (<code>1CISYSINFO</code>)</li>
<li>CPU information (<code>1CICPUINFO</code>)
<!--- Control group (Cgroup) information (<code>1CICGRPINFO</code>)--></li>
</ul>
<p>For clarity, the following example shows a shortened version of this section, where <code>...</code> indicates that lines are removed:</p>
<div class="codehilite"><pre><span></span><span class="nb">NULL</span> <span class="o">------------------------------------------------------------------------</span>
<span class="mi">0</span><span class="n">SECTION</span> <span class="n">ENVINFO</span> <span class="n">subcomponent</span> <span class="n">dump</span> <span class="n">routine</span>
<span class="nb">NULL</span> <span class="o">=================================</span>
<span class="mi">1</span><span class="n">CIJAVAVERSION</span> <span class="n">JRE</span> <span class="mi">9</span> <span class="n">Linux</span> <span class="n">amd64</span><span class="o">-</span><span class="mi">64</span> <span class="p">(</span><span class="n">build</span> <span class="mf">9.0.4</span><span class="o">-</span><span class="n">internal</span><span class="o">+</span><span class="mi">0</span><span class="o">-</span><span class="n">adhoc</span><span class="p">..</span><span class="n">openj9</span><span class="o">-</span><span class="n">openjdk</span><span class="o">-</span><span class="n">jdk9</span><span class="p">)</span>
<span class="mi">1</span><span class="n">CIVMVERSION</span> <span class="mi">20180830</span><span class="n">_000000</span>
<span class="mi">1</span><span class="n">CIJ9VMVERSION</span> <span class="mf">8e7</span><span class="n">c6ec</span>
<span class="mi">1</span><span class="n">CIJITVERSION</span> <span class="mf">8e7</span><span class="n">c6ec</span>
<span class="mi">1</span><span class="n">CIOMRVERSION</span> <span class="mi">553811</span><span class="n">b_CMPRSS</span>
<span class="mi">1</span><span class="n">CIJCLVERSION</span> <span class="n">ec1d223</span> <span class="n">based</span> <span class="n">on</span> <span class="n">jdk</span><span class="o">-</span><span class="mf">9.0.4</span><span class="o">+</span><span class="mi">12</span>
<span class="mi">1</span><span class="n">CIJITMODES</span> <span class="n">JIT</span> <span class="n">enabled</span><span class="p">,</span> <span class="n">AOT</span> <span class="n">enabled</span><span class="p">,</span> <span class="n">FSD</span> <span class="n">disabled</span><span class="p">,</span> <span class="n">HCR</span> <span class="n">enabled</span>
<span class="mi">1</span><span class="n">CIRUNNINGAS</span> <span class="n">Running</span> <span class="n">as</span> <span class="n">a</span> <span class="n">standalone</span> <span class="n">JVM</span>
<span class="mi">1</span><span class="n">CIVMIDLESTATE</span> <span class="n">VM</span> <span class="n">Idle</span> <span class="nl">State</span><span class="p">:</span> <span class="n">ACTIVE</span>
<span class="mi">1</span><span class="n">CISTARTTIME</span> <span class="n">JVM</span> <span class="n">start</span> <span class="nl">time</span><span class="p">:</span> <span class="mi">2018</span><span class="o">/</span><span class="mi">08</span><span class="o">/</span><span class="mi">30</span> <span class="n">at</span> <span class="mi">21</span><span class="o">:</span><span class="mi">55</span><span class="o">:</span><span class="mi">47</span><span class="o">:</span><span class="mi">387</span>
<span class="mi">1</span><span class="n">CISTARTNANO</span> <span class="n">JVM</span> <span class="n">start</span> <span class="nl">nanotime</span><span class="p">:</span> <span class="mi">22012135233549</span>
<span class="mi">1</span><span class="n">CIPROCESSID</span> <span class="n">Process</span> <span class="nl">ID</span><span class="p">:</span> <span class="mi">30285</span> <span class="p">(</span><span class="mh">0x764D</span><span class="p">)</span>
<span class="mi">1</span><span class="n">CICMDLINE</span> <span class="p">[</span><span class="n">not</span> <span class="n">available</span><span class="p">]</span>
<span class="mi">1</span><span class="n">CIJAVAHOMEDIR</span> <span class="n">Java</span> <span class="n">Home</span> <span class="nl">Dir</span><span class="p">:</span> <span class="o">/</span><span class="n">home</span><span class="o">/</span><span class="n">me</span><span class="o">/</span><span class="n">openj9</span><span class="o">-</span><span class="n">openjdk</span><span class="o">-</span><span class="n">jdk9</span><span class="o">/</span><span class="n">build</span><span class="o">/</span><span class="n">linux</span><span class="o">-</span><span class="n">x86_64</span><span class="o">-</span><span class="n">normal</span><span class="o">-</span><span class="n">server</span><span class="o">-</span><span class="k">release</span><span class="o">/</span><span class="n">images</span><span class="o">/</span><span class="n">jdk</span>
<span class="mi">1</span><span class="n">CIJAVADLLDIR</span> <span class="n">Java</span> <span class="n">DLL</span> <span class="nl">Dir</span><span class="p">:</span> <span class="o">/</span><span class="n">home</span><span class="o">/</span><span class="n">me</span><span class="o">/</span><span class="n">openj9</span><span class="o">-</span><span class="n">openjdk</span><span class="o">-</span><span class="n">jdk9</span><span class="o">/</span><span class="n">build</span><span class="o">/</span><span class="n">linux</span><span class="o">-</span><span class="n">x86_64</span><span class="o">-</span><span class="n">normal</span><span class="o">-</span><span class="n">server</span><span class="o">-</span><span class="k">release</span><span class="o">/</span><span class="n">images</span><span class="o">/</span><span class="n">jdk</span><span class="o">/</span><span class="n">bin</span>
<span class="mi">1</span><span class="n">CISYSCP</span> <span class="n">Sys</span> <span class="nl">Classpath</span><span class="p">:</span>
<span class="mi">1</span><span class="n">CIUSERARGS</span> <span class="nl">UserArgs</span><span class="p">:</span>
<span class="mi">2</span><span class="n">CIUSERARG</span> <span class="o">-</span><span class="n">Xoptionsfile</span><span class="o">=/</span><span class="n">home</span><span class="o">/</span><span class="n">me</span><span class="o">/</span><span class="n">openj9</span><span class="o">-</span><span class="n">openjdk</span><span class="o">-</span><span class="n">jdk9</span><span class="o">/</span><span class="n">build</span><span class="o">/</span><span class="n">linux</span><span class="o">-</span><span class="n">x86_64</span><span class="o">-</span><span class="n">normal</span><span class="o">-</span><span class="n">server</span><span class="o">-</span><span class="k">release</span><span class="o">/</span><span class="n">images</span><span class="o">/</span><span class="n">jdk</span><span class="o">/</span><span class="n">lib</span><span class="o">/</span><span class="n">options</span><span class="p">.</span><span class="k">default</span>
<span class="p">...</span>
<span class="nb">NULL</span>
<span class="mi">1</span><span class="n">CIUSERLIMITS</span> <span class="n">User</span> <span class="n">Limits</span> <span class="p">(</span><span class="k">in</span> <span class="n">bytes</span> <span class="n">except</span> <span class="k">for</span> <span class="n">NOFILE</span> <span class="n">and</span> <span class="n">NPROC</span><span class="p">)</span>
<span class="nb">NULL</span> <span class="o">------------------------------------------------------------------------</span>
<span class="nb">NULL</span> <span class="n">type</span> <span class="n">soft</span> <span class="n">limit</span> <span class="n">hard</span> <span class="n">limit</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_AS</span> <span class="n">unlimited</span> <span class="n">unlimited</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_CORE</span> <span class="mi">0</span> <span class="n">unlimited</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_CPU</span> <span class="n">unlimited</span> <span class="n">unlimited</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_DATA</span> <span class="n">unlimited</span> <span class="n">unlimited</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_FSIZE</span> <span class="n">unlimited</span> <span class="n">unlimited</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_LOCKS</span> <span class="n">unlimited</span> <span class="n">unlimited</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_MEMLOCK</span> <span class="mi">65536</span> <span class="mi">65536</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_NOFILE</span> <span class="mi">4096</span> <span class="mi">4096</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_NPROC</span> <span class="mi">4096</span> <span class="mi">30592</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_RSS</span> <span class="n">unlimited</span> <span class="n">unlimited</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_STACK</span> <span class="mi">8388608</span> <span class="n">unlimited</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_MSGQUEUE</span> <span class="mi">819200</span> <span class="mi">819200</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_NICE</span> <span class="mi">0</span> <span class="mi">0</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_RTPRIO</span> <span class="mi">0</span> <span class="mi">0</span>
<span class="mi">2</span><span class="n">CIUSERLIMIT</span> <span class="n">RLIMIT_SIGPENDING</span> <span class="mi">30592</span> <span class="mi">30592</span>
<span class="nb">NULL</span>
<span class="mi">1</span><span class="n">CIENVVARS</span> <span class="n">Environment</span> <span class="n">Variables</span>
<span class="nb">NULL</span> <span class="o">------------------------------------------------------------------------</span>
<span class="mi">2</span><span class="n">CIENVVAR</span> <span class="n">XDG_VTNR</span><span class="o">=</span><span class="mi">1</span>
<span class="mi">2</span><span class="n">CIENVVAR</span> <span class="n">SSH_AGENT_PID</span><span class="o">=</span><span class="mi">2653</span>
<span class="p">...</span>
<span class="nb">NULL</span>
<span class="mi">1</span><span class="n">CISYSINFO</span> <span class="n">System</span> <span class="n">Information</span>
<span class="nb">NULL</span> <span class="o">------------------------------------------------------------------------</span>
<span class="mi">2</span><span class="n">CISYSINFO</span> <span class="o">/</span><span class="n">proc</span><span class="o">/</span><span class="n">sys</span><span class="o">/</span><span class="n">kernel</span><span class="o">/</span><span class="n">core_pattern</span> <span class="o">=</span> <span class="n">core</span>
<span class="mi">2</span><span class="n">CISYSINFO</span> <span class="o">/</span><span class="n">proc</span><span class="o">/</span><span class="n">sys</span><span class="o">/</span><span class="n">kernel</span><span class="o">/</span><span class="n">core_uses_pid</span> <span class="o">=</span> <span class="mi">1</span>
<span class="nb">NULL</span>
<span class="mi">1</span><span class="n">CICPUINFO</span> <span class="n">CPU</span> <span class="n">Information</span>
<span class="nb">NULL</span> <span class="o">------------------------------------------------------------------------</span>
<span class="mi">2</span><span class="n">CIPHYSCPU</span> <span class="n">Physical</span> <span class="nl">CPUs</span><span class="p">:</span> <span class="mi">4</span>
<span class="mi">2</span><span class="n">CIONLNCPU</span> <span class="n">Online</span> <span class="nl">CPUs</span><span class="p">:</span> <span class="mi">4</span>
<span class="mi">2</span><span class="n">CIBOUNDCPU</span> <span class="n">Bound</span> <span class="nl">CPUs</span><span class="p">:</span> <span class="mi">4</span>
<span class="mi">2</span><span class="n">CIACTIVECPU</span> <span class="n">Active</span> <span class="nl">CPUs</span><span class="p">:</span> <span class="mi">0</span>
<span class="mi">2</span><span class="n">CITARGETCPU</span> <span class="n">Target</span> <span class="nl">CPUs</span><span class="p">:</span> <span class="mi">4</span>
</pre></div>
<!--
NULL
2CICONTINFO Running in container : FALSE
2CICGRPINFO JVM support for cgroups enabled : FALSE
1CICGRPINFO Cgroup Information
NULL ------------------------------------------------------------------------
2CICGRPINFO subsystem : cpu
2CICGRPINFO cgroup name : /
2CICGRPINFO CPU Period : 100000 microseconds
2CICGRPINFO CPU Quota : Not Set
2CICGRPINFO CPU Shares : 1024
2CICGRPINFO Period intervals elapsed count : 0
2CICGRPINFO Throttled count : 0
2CICGRPINFO Total throttle time : 0 nanoseconds
2CICGRPINFO subsystem : memory
2CICGRPINFO cgroup name : /
2CICGRPINFO Memory Limit : Not Set
2CICGRPINFO Memory + Swap Limit : Not Set
2CICGRPINFO Memory Usage : 5485015040 bytes
2CICGRPINFO Memory + Swap Usage : 5486088192 bytes
2CICGRPINFO Memory Max Usage : 2933260288 bytes
2CICGRPINFO Memory + Swap Max Usage : 2935902208 bytes
2CICGRPINFO Memory limit exceeded count : 0
2CICGRPINFO Memory + Swap limit exceeded count : 0
2CICGRPINFO OOM Killer Disabled : 0
2CICGRPINFO Under OOM : 0
2CICGRPINFO subsystem : cpuset
2CICGRPINFO cgroup name : /
2CICGRPINFO CPU exclusive : 1
2CICGRPINFO Mem exclusive : 1
2CICGRPINFO CPUs : 0-3
2CICGRPINFO Mems : 0
NULL
-->
<h2 id="nativememinfo">NATIVEMEMINFO</h2>
<p>This section records information about native memory that is requested by using library functions such as <code>malloc()</code> and <code>mmap()</code>.
Values are provided as a breakdown, per component, indicating the total number of bytes allocated and the number of native memory allocations.
In the following example, 4,682,840 bytes of native memory are allocated (but not yet freed) to VM Classes, which corresponds to 141 allocations.</p>
<div class="codehilite"><pre><span></span>NULL ------------------------------------------------------------------------
0SECTION NATIVEMEMINFO subcomponent dump routine
NULL =================================
0MEMUSER
1MEMUSER JRE: 2,569,088,312 bytes / 4653 allocations
1MEMUSER |
2MEMUSER +--VM: 2,280,088,336 bytes / 2423 allocations
2MEMUSER | |
3MEMUSER | +--Classes: 4,682,840 bytes / 141 allocations
2MEMUSER | |
3MEMUSER | +--Memory Manager (GC): 2,054,966,784 bytes / 433 allocations
3MEMUSER | | |
4MEMUSER | | +--Java Heap: 2,014,113,792 bytes / 1 allocation
3MEMUSER | | |
4MEMUSER | | +--Other: 40,852,992 bytes / 432 allocations
2MEMUSER | |
3MEMUSER | +--Threads: 10,970,016 bytes / 156 allocations
3MEMUSER | | |
4MEMUSER | | +--Java Stack: 197,760 bytes / 16 allocations
3MEMUSER | | |
4MEMUSER | | +--Native Stack: 10,616,832 bytes / 17 allocations
3MEMUSER | | |
4MEMUSER | | +--Other: 155,424 bytes / 123 allocations
2MEMUSER | |
3MEMUSER | +--Trace: 180,056 bytes / 263 allocations
2MEMUSER | |
3MEMUSER | +--JVMTI: 17,776 bytes / 13 allocations
2MEMUSER | |
3MEMUSER | +--JNI: 36,184 bytes / 52 allocations
2MEMUSER | |
3MEMUSER | +--Port Library: 208,179,632 bytes / 72 allocations
3MEMUSER | | |
4MEMUSER | | +--Unused &lt;32bit allocation regions: 208,168,752 bytes / 1 allocation
3MEMUSER | | |
4MEMUSER | | +--Other: 10,880 bytes / 71 allocations
2MEMUSER | |
3MEMUSER | +--Other: 1,055,048 bytes / 1293 allocations
1MEMUSER |
2MEMUSER +--JIT: 288,472,816 bytes / 140 allocations
2MEMUSER | |
3MEMUSER | +--JIT Code Cache: 268,435,456 bytes / 1 allocation
2MEMUSER | |
3MEMUSER | +--JIT Data Cache: 2,097,216 bytes / 1 allocation
2MEMUSER | |
3MEMUSER | +--Other: 17,940,144 bytes / 138 allocations
1MEMUSER |
2MEMUSER +--Class Libraries: 13,432 bytes / 25 allocations
2MEMUSER | |
3MEMUSER | +--VM Class Libraries: 13,432 bytes / 25 allocations
3MEMUSER | | |
4MEMUSER | | +--sun.misc.Unsafe: 3,184 bytes / 13 allocations
4MEMUSER | | | |
5MEMUSER | | | +--Direct Byte Buffers: 1,056 bytes / 12 allocations
4MEMUSER | | | |
5MEMUSER | | | +--Other: 2,128 bytes / 1 allocation
3MEMUSER | | |
4MEMUSER | | +--Other: 10,248 bytes / 12 allocations
1MEMUSER |
2MEMUSER +--Unknown: 513,728 bytes / 2065 allocations
NULL
</pre></div>
<p>This section does not record memory that is allocated by application or JNI code and is typically a little less than the
value recorded by operating system tools.</p>
<h2 id="meminfo">MEMINFO</h2>
<p>This section relates to memory management, providing a breakdown of memory usage in the VM for the object heap,
internal memory, memory used for classes, the JIT code cache, and JIT data cache in decimal and hexadecimal format.
You can also find out which garbage collection policy is in use when the dump is produced. </p>
<p>The object memory area (<code>1STHEAPTYPE</code>) records each memory region in use, its start and end address, and region size.
Further information is recorded about the memory segments used for internal memory, class memory, the JIT code cache and JIT data cache (<code>1STSEGMENT</code>).
This information includes the address of the segment control data structure, the start and end address of the native memory segment, as well as
the segment size.</p>
<p>For clarity, the following example shows a shortened version of this section, where <code>...</code> indicates that lines are removed:</p>
<div class="codehilite"><pre><span></span>NULL ------------------------------------------------------------------------
0SECTION MEMINFO subcomponent dump routine
NULL =================================
NULL
1STHEAPTYPE Object Memory
NULL id start end size space/region
1STHEAPSPACE 0x00007FF4F00744A0 -- -- -- Generational
1STHEAPREGION 0x00007FF4F0074CE0 0x0000000087F40000 0x0000000088540000 0x0000000000600000 Generational/Tenured Region
1STHEAPREGION 0x00007FF4F0074930 0x00000000FFE00000 0x00000000FFF00000 0x0000000000100000 Generational/Nursery Region
1STHEAPREGION 0x00007FF4F0074580 0x00000000FFF00000 0x0000000100000000 0x0000000000100000 Generational/Nursery Region
NULL
1STHEAPTOTAL Total memory: 8388608 (0x0000000000800000)
1STHEAPINUSE Total memory in use: 2030408 (0x00000000001EFB48)
1STHEAPFREE Total memory free: 6358200 (0x00000000006104B8)
NULL
1STSEGTYPE Internal Memory
NULL segment start alloc end type size
1STSEGMENT 0x00007FF4F004CBC8 0x00007FF4CD33C000 0x00007FF4CD33C000 0x00007FF4CE33C000 0x01000440 0x0000000001000000
1STSEGMENT 0x00007FF4F004CB08 0x00007FF4DE43D030 0x00007FF4DE517770 0x00007FF4DE53D030 0x00800040 0x0000000000100000
NULL
1STSEGTOTAL Total memory: 17825792 (0x0000000001100000)
1STSEGINUSE Total memory in use: 894784 (0x00000000000DA740)
1STSEGFREE Total memory free: 16931008 (0x00000000010258C0)
NULL
1STSEGTYPE Class Memory
NULL segment start alloc end type size
1STSEGMENT 0x00007FF4F03B5638 0x0000000001053D98 0x000000000105BD98 0x000000000105BD98 0x00010040 0x0000000000008000
1STSEGMENT 0x00007FF4F03B5578 0x0000000001048188 0x0000000001050188 0x0000000001050188 0x00010040 0x0000000000008000
...
NULL
1STSEGTOTAL Total memory: 3512520 (0x00000000003598C8)
1STSEGINUSE Total memory in use: 3433944 (0x00000000003465D8)
1STSEGFREE Total memory free: 78576 (0x00000000000132F0)
NULL
1STSEGTYPE JIT Code Cache
NULL segment start alloc end type size
1STSEGMENT 0x00007FF4F00961F8 0x00007FF4CE43D000 0x00007FF4CE445790 0x00007FF4DE43D000 0x00000068 0x0000000010000000
NULL
1STSEGTOTAL Total memory: 268435456 (0x0000000010000000)
1STSEGINUSE Total memory in use: 34704 (0x0000000000008790)
1STSEGFREE Total memory free: 268400752 (0x000000000FFF7870)
1STSEGLIMIT Allocation limit: 268435456 (0x0000000010000000)
NULL
1STSEGTYPE JIT Data Cache
NULL segment start alloc end type size
1STSEGMENT 0x00007FF4F0096668 0x00007FF4CC553030 0x00007FF4CC753030 0x00007FF4CC753030 0x00000048 0x0000000000200000
NULL
1STSEGTOTAL Total memory: 2097152 (0x0000000000200000)
1STSEGINUSE Total memory in use: 2097152 (0x0000000000200000)
1STSEGFREE Total memory free: 0 (0x0000000000000000)
1STSEGLIMIT Allocation limit: 402653184 (0x0000000018000000)
NULL
1STGCHTYPE GC History
NULL
</pre></div>
<p>In the example, the GC History (<code>1STGCHTYPE</code>) section is blank. This section is populated if a garbage collection cycle occurred in
a VM that is being diagnosed with the trace facility.</p>
<h2 id="locks">LOCKS</h2>
<p>This section of the Java dump provides information about locks, which protect shared resources from being accessed by more than one entity at a time. The information is essential in a deadlock situation, where two threads attempt to synchronize on an object and lock an instance of a class. Precise information is recorded about the threads that are causing the problem, which enables you to identify the root cause.</p>
<p>The following example shows a typical LOCKS section, where no deadlocks existed at the time the dump was triggered. For clarity, the following example shows a shortened version of this section, where <code>...</code> indicates that lines are removed:</p>
<div class="codehilite"><pre><span></span><span class="nb">NULL</span> <span class="o">------------------------------------------------------------------------</span>
<span class="mi">0</span><span class="n">SECTION</span> <span class="n">LOCKS</span> <span class="n">subcomponent</span> <span class="n">dump</span> <span class="n">routine</span>
<span class="nb">NULL</span> <span class="o">===============================</span>
<span class="nb">NULL</span>
<span class="mi">1L</span><span class="n">KPOOLINFO</span> <span class="n">Monitor</span> <span class="n">pool</span> <span class="nl">info</span><span class="p">:</span>
<span class="mi">2L</span><span class="n">KPOOLTOTAL</span> <span class="n">Current</span> <span class="n">total</span> <span class="n">number</span> <span class="n">of</span> <span class="nl">monitors</span><span class="p">:</span> <span class="mi">3</span>
<span class="nb">NULL</span>
<span class="mi">1L</span><span class="n">KMONPOOLDUMP</span> <span class="n">Monitor</span> <span class="n">Pool</span> <span class="n">Dump</span> <span class="p">(</span><span class="n">flat</span> <span class="o">&amp;</span> <span class="n">inflated</span> <span class="n">object</span><span class="o">-</span><span class="n">monitors</span><span class="p">)</span><span class="o">:</span>
<span class="mi">2L</span><span class="n">KMONINUSE</span> <span class="nl">sys_mon_t</span><span class="p">:</span><span class="mh">0x00007FF4B0001D78</span> <span class="nl">infl_mon_t</span><span class="p">:</span> <span class="mh">0x00007FF4B0001DF8</span><span class="o">:</span>
<span class="mi">3L</span><span class="n">KMONOBJECT</span> <span class="n">java</span><span class="o">/</span><span class="n">lang</span><span class="o">/</span><span class="n">ref</span><span class="o">/</span><span class="n">ReferenceQueue</span><span class="mh">@0x00000000FFE26A10</span><span class="o">:</span> <span class="o">&lt;</span><span class="n">unowned</span><span class="o">&gt;</span>
<span class="mi">3L</span><span class="n">KNOTIFYQ</span> <span class="n">Waiting</span> <span class="n">to</span> <span class="n">be</span> <span class="nl">notified</span><span class="p">:</span>
<span class="mi">3L</span><span class="n">KWAITNOTIFY</span> <span class="s">&quot;Common-Cleaner&quot;</span> <span class="p">(</span><span class="nl">J9VMThread</span><span class="p">:</span><span class="mh">0x0000000000FD0100</span><span class="p">)</span>
<span class="nb">NULL</span>
<span class="mi">1L</span><span class="n">KREGMONDUMP</span> <span class="n">JVM</span> <span class="n">System</span> <span class="n">Monitor</span> <span class="n">Dump</span> <span class="p">(</span><span class="n">registered</span> <span class="n">monitors</span><span class="p">)</span><span class="o">:</span>
<span class="mi">2L</span><span class="n">KREGMON</span> <span class="n">Thread</span> <span class="n">global</span> <span class="n">lock</span> <span class="p">(</span><span class="mh">0x00007FF4F0004FE8</span><span class="p">)</span><span class="o">:</span> <span class="o">&lt;</span><span class="n">unowned</span><span class="o">&gt;</span>
<span class="mi">2L</span><span class="n">KREGMON</span> <span class="o">&amp;</span><span class="p">(</span><span class="n">PPG_mem_mem32_subAllocHeapMem32</span><span class="p">.</span><span class="n">monitor</span><span class="p">)</span> <span class="n">lock</span> <span class="p">(</span><span class="mh">0x00007FF4F0005098</span><span class="p">)</span><span class="o">:</span> <span class="o">&lt;</span><span class="n">unowned</span><span class="o">&gt;</span>
<span class="mi">2L</span><span class="n">KREGMON</span> <span class="n">NLS</span> <span class="n">hash</span> <span class="n">table</span> <span class="n">lock</span> <span class="p">(</span><span class="mh">0x00007FF4F0005148</span><span class="p">)</span><span class="o">:</span> <span class="o">&lt;</span><span class="n">unowned</span><span class="o">&gt;</span>
<span class="p">...</span>
<span class="nb">NULL</span>
</pre></div>
<h2 id="threads">THREADS</h2>
<p>The THREADS section of a Java dump file provides summary information about the VM thread pool and detailed information about Java threads, native threads, and stack traces. Understanding the content of this section can help you diagnose problems that are caused by blocked or waiting threads.</p>
<p>A Java thread runs on a native thread. Several lines are recorded for each Java thread in the <code>Thread Details</code> subsection, which include the following key pieces of information:</p>
<ul>
<li><code>3XMTHREADINFO</code>: The thread name, address information for the VM thread structures and Java thread object, the thread state, and thread priority.</li>
<li><code>3XMJAVALTHREAD</code>: The Java thread ID and daemon status from the thread object.</li>
<li><code>3XMTHREADINFO1</code>: The native operating system thread ID, priority, scheduling policy, internal VM thread state, and VM thread flags.</li>
<li><code>3XMTHREADINFO2</code>: The native stack address range.</li>
<li><code>3XMTHREADINFO3</code>: Java callstack information (<code>4XESTACKTRACE</code>) or Native call stack information (<code>4XENATIVESTACK</code>).</li>
<li><code>5XESTACKTRACE</code>: This line indicates whether locks were taken by a specific method.</li>
</ul>
<p>Java thread priorities are mapped to operating system priority values. Thread states are shown in the following table:</p>
<table>
<thead>
<tr>
<th>Thread state value</th>
<th>Status</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>R</td>
<td>Runnable</td>
<td>The thread is able to run</td>
</tr>
<tr>
<td>CW</td>
<td>Condition Wait</td>
<td>The thread is waiting</td>
</tr>
<tr>
<td>S</td>
<td>Suspended</td>
<td>The thread is suspended by another thread</td>
</tr>
<tr>
<td>Z</td>
<td>Zombie</td>
<td>The thread is destroyed</td>
</tr>
<tr>
<td>P</td>
<td>Parked</td>
<td>The thread is parked by <code>java.util.concurrent</code></td>
</tr>
<tr>
<td>B</td>
<td>Blocked</td>
<td>The thread is waiting to obtain a lock</td>
</tr>
</tbody>
</table>
<p>For threads that are parked (P), blocked (B), or waiting (CW), an additional line (<code>3XMTHREADBLOCK</code>) is included in the output that shows what the thread is parked on, blocked on, or waiting for.</p>
<p>For clarity, the following example shows a shortened version of a typical THREADS section, where <code>...</code> indicates that lines are removed:</p>
<div class="codehilite"><pre><span></span><span class="nv">NULL</span> <span class="s s-Atom">------------------------------------------------------------------------</span>
<span class="mi">0</span><span class="nv">SECTION</span> <span class="nv">THREADS</span> <span class="s s-Atom">subcomponent</span> <span class="s s-Atom">dump</span> <span class="s s-Atom">routine</span>
<span class="nv">NULL</span> <span class="s s-Atom">=================================</span>
<span class="nv">NULL</span>
<span class="mi">1</span><span class="nv">XMPOOLINFO</span> <span class="nv">JVM</span> <span class="nv">Thread</span> <span class="s s-Atom">pool</span> <span class="nn">info</span><span class="p">:</span>
<span class="mi">2</span><span class="nv">XMPOOLTOTAL</span> <span class="nv">Current</span> <span class="s s-Atom">total</span> <span class="s s-Atom">number</span> <span class="s s-Atom">of</span> <span class="s s-Atom">pooled</span> <span class="nn">threads</span><span class="p">:</span> <span class="mi">18</span>
<span class="mi">2</span><span class="nv">XMPOOLLIVE</span> <span class="nv">Current</span> <span class="s s-Atom">total</span> <span class="s s-Atom">number</span> <span class="s s-Atom">of</span> <span class="s s-Atom">live</span> <span class="nn">threads</span><span class="p">:</span> <span class="mi">16</span>
<span class="mi">2</span><span class="nv">XMPOOLDAEMON</span> <span class="nv">Current</span> <span class="s s-Atom">total</span> <span class="s s-Atom">number</span> <span class="s s-Atom">of</span> <span class="s s-Atom">live</span> <span class="s s-Atom">daemon</span> <span class="nn">threads</span><span class="p">:</span> <span class="mi">15</span>
<span class="nv">NULL</span>
<span class="mi">1</span><span class="nv">XMTHDINFO</span> <span class="nv">Thread</span> <span class="nv">Details</span>
<span class="nv">NULL</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO</span> <span class="s2">&quot;JIT Diagnostic Compilation Thread-7 Suspended&quot;</span> <span class="nv">J9VMThread</span><span class="s s-Atom">:</span><span class="mh">0x0000000000EFC500</span><span class="p">,</span> <span class="s s-Atom">omrthread_t:</span><span class="mh">0x00007FF4F00A77E8</span><span class="p">,</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Thread</span><span class="s s-Atom">:</span><span class="mh">0x00000000FFE97480</span><span class="p">,</span> <span class="nn">state</span><span class="p">:</span><span class="nv">R</span><span class="p">,</span> <span class="s s-Atom">prio</span><span class="o">=</span><span class="mi">10</span>
<span class="mi">3</span><span class="nv">XMJAVALTHREAD</span> <span class="p">(</span><span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Thread</span> <span class="s s-Atom">getId:</span><span class="mh">0xA</span><span class="p">,</span> <span class="s s-Atom">isDaemon:true</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO1</span> <span class="p">(</span><span class="s s-Atom">native</span> <span class="s s-Atom">thread</span> <span class="nv">ID</span><span class="s s-Atom">:</span><span class="mh">0x7657</span><span class="p">,</span> <span class="s s-Atom">native</span> <span class="nn">priority</span><span class="p">:</span><span class="mh">0xB</span><span class="p">,</span> <span class="s s-Atom">native</span> <span class="nn">policy</span><span class="p">:</span><span class="nv">UNKNOWN</span><span class="p">,</span> <span class="nn">vmstate</span><span class="p">:</span><span class="nv">CW</span><span class="p">,</span> <span class="s s-Atom">vm</span> <span class="s s-Atom">thread</span> <span class="nn">flags</span><span class="p">:</span><span class="mh">0x00000081</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO2</span> <span class="p">(</span><span class="s s-Atom">native</span> <span class="s s-Atom">stack</span> <span class="s s-Atom">address</span> <span class="s s-Atom">range</span> <span class="nn">from</span><span class="p">:</span><span class="mh">0x00007FF4CCC36000</span><span class="p">,</span> <span class="nn">to</span><span class="p">:</span><span class="mh">0x00007FF4CCD36000</span><span class="p">,</span> <span class="nn">size</span><span class="p">:</span><span class="mh">0x100000</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMCPUTIME</span> <span class="nv">CPU</span> <span class="s s-Atom">usage</span> <span class="nn">total</span><span class="p">:</span> <span class="mf">0.000037663</span> <span class="s s-Atom">secs</span><span class="p">,</span> <span class="s s-Atom">current</span> <span class="s s-Atom">category=</span><span class="s2">&quot;JIT&quot;</span>
<span class="mi">3</span><span class="nv">XMHEAPALLOC</span> <span class="nv">Heap</span> <span class="s s-Atom">bytes</span> <span class="s s-Atom">allocated</span> <span class="s s-Atom">since</span> <span class="s s-Atom">last</span> <span class="nv">GC</span> <span class="s s-Atom">cycle</span><span class="o">=</span><span class="mi">0</span> <span class="p">(</span><span class="mh">0x0</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO3</span> <span class="nv">No</span> <span class="nv">Java</span> <span class="s s-Atom">callstack</span> <span class="s s-Atom">associated</span> <span class="s s-Atom">with</span> <span class="s s-Atom">this</span> <span class="s s-Atom">thread</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO3</span> <span class="nv">No</span> <span class="s s-Atom">native</span> <span class="s s-Atom">callstack</span> <span class="s s-Atom">available</span> <span class="s s-Atom">for</span> <span class="s s-Atom">this</span> <span class="s s-Atom">thread</span>
<span class="nv">NULL</span>
<span class="p">...</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO</span> <span class="s2">&quot;Common-Cleaner&quot;</span> <span class="nv">J9VMThread</span><span class="s s-Atom">:</span><span class="mh">0x0000000000FD0100</span><span class="p">,</span> <span class="s s-Atom">omrthread_t:</span><span class="mh">0x00007FF4F022A520</span><span class="p">,</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Thread</span><span class="s s-Atom">:</span><span class="mh">0x00000000FFE26F40</span><span class="p">,</span> <span class="nn">state</span><span class="p">:</span><span class="nv">CW</span><span class="p">,</span> <span class="s s-Atom">prio</span><span class="o">=</span><span class="mi">8</span>
<span class="mi">3</span><span class="nv">XMJAVALTHREAD</span> <span class="p">(</span><span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Thread</span> <span class="s s-Atom">getId:</span><span class="mh">0x2</span><span class="p">,</span> <span class="s s-Atom">isDaemon:true</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO1</span> <span class="p">(</span><span class="s s-Atom">native</span> <span class="s s-Atom">thread</span> <span class="nv">ID</span><span class="s s-Atom">:</span><span class="mh">0x765A</span><span class="p">,</span> <span class="s s-Atom">native</span> <span class="nn">priority</span><span class="p">:</span><span class="mh">0x8</span><span class="p">,</span> <span class="s s-Atom">native</span> <span class="nn">policy</span><span class="p">:</span><span class="nv">UNKNOWN</span><span class="p">,</span> <span class="nn">vmstate</span><span class="p">:</span><span class="nv">CW</span><span class="p">,</span> <span class="s s-Atom">vm</span> <span class="s s-Atom">thread</span> <span class="nn">flags</span><span class="p">:</span><span class="mh">0x00080181</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO2</span> <span class="p">(</span><span class="s s-Atom">native</span> <span class="s s-Atom">stack</span> <span class="s s-Atom">address</span> <span class="s s-Atom">range</span> <span class="nn">from</span><span class="p">:</span><span class="mh">0x00007FF4CC0B8000</span><span class="p">,</span> <span class="nn">to</span><span class="p">:</span><span class="mh">0x00007FF4CC0F8000</span><span class="p">,</span> <span class="nn">size</span><span class="p">:</span><span class="mh">0x40000</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMCPUTIME</span> <span class="nv">CPU</span> <span class="s s-Atom">usage</span> <span class="nn">total</span><span class="p">:</span> <span class="mf">0.000150926</span> <span class="s s-Atom">secs</span><span class="p">,</span> <span class="s s-Atom">current</span> <span class="s s-Atom">category=</span><span class="s2">&quot;Application&quot;</span>
<span class="mi">3</span><span class="nv">XMTHREADBLOCK</span> <span class="nv">Waiting</span> <span class="nn">on</span><span class="p">:</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="s s-Atom">ref</span><span class="o">/</span><span class="nv">ReferenceQueue</span><span class="s s-Atom">@</span><span class="mh">0x00000000FFE26A10</span> <span class="nv">Owned</span> <span class="nn">by</span><span class="p">:</span> <span class="o">&lt;</span><span class="s s-Atom">unowned</span><span class="o">&gt;</span>
<span class="mi">3</span><span class="nv">XMHEAPALLOC</span> <span class="nv">Heap</span> <span class="s s-Atom">bytes</span> <span class="s s-Atom">allocated</span> <span class="s s-Atom">since</span> <span class="s s-Atom">last</span> <span class="nv">GC</span> <span class="s s-Atom">cycle</span><span class="o">=</span><span class="mi">0</span> <span class="p">(</span><span class="mh">0x0</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO3</span> <span class="nv">Java</span> <span class="nn">callstack</span><span class="p">:</span>
<span class="mi">4</span><span class="nv">XESTACKTRACE</span> <span class="s s-Atom">at</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Object</span><span class="p">.</span><span class="nf">wait</span><span class="p">(</span><span class="nv">Native</span> <span class="nv">Method</span><span class="p">)</span>
<span class="mi">4</span><span class="nv">XESTACKTRACE</span> <span class="s s-Atom">at</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Object</span><span class="p">.</span><span class="nf">wait</span><span class="p">(</span><span class="nv">Object</span><span class="p">.</span><span class="nn">java</span><span class="p">:</span><span class="mi">221</span><span class="p">)</span>
<span class="mi">4</span><span class="nv">XESTACKTRACE</span> <span class="s s-Atom">at</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="s s-Atom">ref</span><span class="o">/</span><span class="nv">ReferenceQueue</span><span class="p">.</span><span class="nf">remove</span><span class="p">(</span><span class="nv">ReferenceQueue</span><span class="p">.</span><span class="nn">java</span><span class="p">:</span><span class="mi">138</span><span class="p">)</span>
<span class="mi">5</span><span class="nv">XESTACKTRACE</span> <span class="p">(</span><span class="s s-Atom">entered</span> <span class="nn">lock</span><span class="p">:</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="s s-Atom">ref</span><span class="o">/</span><span class="nv">ReferenceQueue</span><span class="s s-Atom">@</span><span class="mh">0x00000000FFE26A10</span><span class="p">,</span> <span class="s s-Atom">entry</span> <span class="nn">count</span><span class="p">:</span> <span class="mi">1</span><span class="p">)</span>
<span class="mi">4</span><span class="nv">XESTACKTRACE</span> <span class="s s-Atom">at</span> <span class="s s-Atom">jdk</span><span class="o">/</span><span class="s s-Atom">internal</span><span class="o">/</span><span class="s s-Atom">ref</span><span class="o">/</span><span class="nv">CleanerImpl</span><span class="p">.</span><span class="nf">run</span><span class="p">(</span><span class="nv">CleanerImpl</span><span class="p">.</span><span class="nn">java</span><span class="p">:</span><span class="mi">148</span><span class="p">)</span>
<span class="mi">4</span><span class="nv">XESTACKTRACE</span> <span class="s s-Atom">at</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Thread</span><span class="p">.</span><span class="nf">run</span><span class="p">(</span><span class="nv">Thread</span><span class="p">.</span><span class="nn">java</span><span class="p">:</span><span class="mi">835</span><span class="p">)</span>
<span class="mi">4</span><span class="nv">XESTACKTRACE</span> <span class="s s-Atom">at</span> <span class="s s-Atom">jdk</span><span class="o">/</span><span class="s s-Atom">internal</span><span class="o">/</span><span class="s s-Atom">misc</span><span class="o">/</span><span class="nv">InnocuousThread</span><span class="p">.</span><span class="nf">run</span><span class="p">(</span><span class="nv">InnocuousThread</span><span class="p">.</span><span class="nn">java</span><span class="p">:</span><span class="mi">122</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO3</span> <span class="nv">No</span> <span class="s s-Atom">native</span> <span class="s s-Atom">callstack</span> <span class="s s-Atom">available</span> <span class="s s-Atom">for</span> <span class="s s-Atom">this</span> <span class="s s-Atom">thread</span>
<span class="nv">NULL</span>
<span class="nv">NULL</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO</span> <span class="s2">&quot;IProfiler&quot;</span> <span class="nv">J9VMThread</span><span class="s s-Atom">:</span><span class="mh">0x0000000000F03D00</span><span class="p">,</span> <span class="s s-Atom">omrthread_t:</span><span class="mh">0x00007FF4F00B06F8</span><span class="p">,</span> <span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Thread</span><span class="s s-Atom">:</span><span class="mh">0x00000000FFE97B60</span><span class="p">,</span> <span class="nn">state</span><span class="p">:</span><span class="nv">R</span><span class="p">,</span> <span class="s s-Atom">prio</span><span class="o">=</span><span class="mi">5</span>
<span class="mi">3</span><span class="nv">XMJAVALTHREAD</span> <span class="p">(</span><span class="s s-Atom">java</span><span class="o">/</span><span class="s s-Atom">lang</span><span class="o">/</span><span class="nv">Thread</span> <span class="s s-Atom">getId:</span><span class="mh">0xC</span><span class="p">,</span> <span class="s s-Atom">isDaemon:true</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO1</span> <span class="p">(</span><span class="s s-Atom">native</span> <span class="s s-Atom">thread</span> <span class="nv">ID</span><span class="s s-Atom">:</span><span class="mh">0x7659</span><span class="p">,</span> <span class="s s-Atom">native</span> <span class="nn">priority</span><span class="p">:</span><span class="mh">0x5</span><span class="p">,</span> <span class="s s-Atom">native</span> <span class="nn">policy</span><span class="p">:</span><span class="nv">UNKNOWN</span><span class="p">,</span> <span class="nn">vmstate</span><span class="p">:</span><span class="nv">CW</span><span class="p">,</span> <span class="s s-Atom">vm</span> <span class="s s-Atom">thread</span> <span class="nn">flags</span><span class="p">:</span><span class="mh">0x00000081</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO2</span> <span class="p">(</span><span class="s s-Atom">native</span> <span class="s s-Atom">stack</span> <span class="s s-Atom">address</span> <span class="s s-Atom">range</span> <span class="nn">from</span><span class="p">:</span><span class="mh">0x00007FF4F8940000</span><span class="p">,</span> <span class="nn">to</span><span class="p">:</span><span class="mh">0x00007FF4F8960000</span><span class="p">,</span> <span class="nn">size</span><span class="p">:</span><span class="mh">0x20000</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMCPUTIME</span> <span class="nv">CPU</span> <span class="s s-Atom">usage</span> <span class="nn">total</span><span class="p">:</span> <span class="mf">0.004753103</span> <span class="s s-Atom">secs</span><span class="p">,</span> <span class="s s-Atom">current</span> <span class="s s-Atom">category=</span><span class="s2">&quot;JIT&quot;</span>
<span class="mi">3</span><span class="nv">XMHEAPALLOC</span> <span class="nv">Heap</span> <span class="s s-Atom">bytes</span> <span class="s s-Atom">allocated</span> <span class="s s-Atom">since</span> <span class="s s-Atom">last</span> <span class="nv">GC</span> <span class="s s-Atom">cycle</span><span class="o">=</span><span class="mi">0</span> <span class="p">(</span><span class="mh">0x0</span><span class="p">)</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO3</span> <span class="nv">No</span> <span class="nv">Java</span> <span class="s s-Atom">callstack</span> <span class="s s-Atom">associated</span> <span class="s s-Atom">with</span> <span class="s s-Atom">this</span> <span class="s s-Atom">thread</span>
<span class="mi">3</span><span class="nv">XMTHREADINFO3</span> <span class="nv">No</span> <span class="s s-Atom">native</span> <span class="s s-Atom">callstack</span> <span class="s s-Atom">available</span> <span class="s s-Atom">for</span> <span class="s s-Atom">this</span> <span class="s s-Atom">thread</span>
<span class="nv">NULL</span>
<span class="p">...</span>
<span class="mi">1</span><span class="nv">XMWLKTHDERR</span> <span class="nv">The</span> <span class="s s-Atom">following</span> <span class="s s-Atom">was</span> <span class="s s-Atom">reported</span> <span class="s s-Atom">while</span> <span class="s s-Atom">collecting</span> <span class="s s-Atom">native</span> <span class="nn">stacks</span><span class="p">:</span>
<span class="mi">2</span><span class="nv">XMWLKTHDERR</span> <span class="s s-Atom">unable</span> <span class="s s-Atom">to</span> <span class="s s-Atom">count</span> <span class="nf">threads</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="o">-</span><span class="mi">2</span><span class="p">)</span>
<span class="nv">NULL</span>
<span class="mi">1</span><span class="nv">XMTHDSUMMARY</span> <span class="nv">Threads</span> <span class="nv">CPU</span> <span class="nv">Usage</span> <span class="nv">Summary</span>
<span class="nv">NULL</span> <span class="s s-Atom">=========================</span>
<span class="nv">NULL</span>
<span class="mi">1</span><span class="nv">XMTHDCATINFO</span> <span class="nv">Warning</span><span class="s s-Atom">:</span> <span class="s s-Atom">to</span> <span class="s s-Atom">get</span> <span class="s s-Atom">more</span> <span class="s s-Atom">accurate</span> <span class="nv">CPU</span> <span class="s s-Atom">times</span> <span class="s s-Atom">for</span> <span class="s s-Atom">the</span> <span class="nv">GC</span><span class="p">,</span> <span class="s s-Atom">the</span> <span class="s s-Atom">option</span> <span class="o">-</span><span class="nv">XX</span><span class="p">:-</span><span class="nv">ReduceCPUMonitorOverhead</span> <span class="s s-Atom">can</span> <span class="s s-Atom">be</span> <span class="s s-Atom">used</span><span class="p">.</span> <span class="nv">See</span> <span class="s s-Atom">the</span> <span class="s s-Atom">user</span> <span class="s s-Atom">guide</span> <span class="s s-Atom">for</span> <span class="s s-Atom">more</span> <span class="s s-Atom">information</span><span class="p">.</span>
<span class="nv">NULL</span>
<span class="mi">1</span><span class="nv">XMTHDCATEGORY</span> <span class="nv">All</span> <span class="nv">JVM</span> <span class="s s-Atom">attached</span> <span class="nn">threads</span><span class="p">:</span> <span class="mf">0.280083000</span> <span class="s s-Atom">secs</span>
<span class="mi">1</span><span class="nv">XMTHDCATEGORY</span> <span class="p">|</span>
<span class="mi">2</span><span class="nv">XMTHDCATEGORY</span> <span class="s s-Atom">+--</span><span class="nv">System</span><span class="o">-</span><span class="nv">JVM</span><span class="s s-Atom">:</span> <span class="mf">0.270814000</span> <span class="s s-Atom">secs</span>
<span class="mi">2</span><span class="nv">XMTHDCATEGORY</span> <span class="p">|</span> <span class="p">|</span>
<span class="mi">3</span><span class="nv">XMTHDCATEGORY</span> <span class="p">|</span> <span class="s s-Atom">+--</span><span class="nv">GC</span><span class="s s-Atom">:</span> <span class="mf">0.000599000</span> <span class="s s-Atom">secs</span>
<span class="mi">2</span><span class="nv">XMTHDCATEGORY</span> <span class="p">|</span> <span class="p">|</span>
<span class="mi">3</span><span class="nv">XMTHDCATEGORY</span> <span class="p">|</span> <span class="s s-Atom">+--</span><span class="nv">JIT</span><span class="s s-Atom">:</span> <span class="mf">0.071904000</span> <span class="s s-Atom">secs</span>
<span class="mi">1</span><span class="nv">XMTHDCATEGORY</span> <span class="p">|</span>
<span class="mi">2</span><span class="nv">XMTHDCATEGORY</span> <span class="s s-Atom">+--</span><span class="nv">Application</span><span class="s s-Atom">:</span> <span class="mf">0.009269000</span> <span class="s s-Atom">secs</span>
<span class="nv">NULL</span>
</pre></div>
<h2 id="hooks">HOOKS</h2>
<p>This section shows internal VM event callbacks, which are used for diagnosing performance problems in the VM. Multiple hook interfaces are listed, which include their individual hook events. The following example shows data for the <code>J9VMHookInterface</code>, including the call site location (source file:line number), start time, and duration of the last callback and the longest callback.</p>
<div class="codehilite"><pre><span></span>NULL ------------------------------------------------------------------------
0SECTION HOOK subcomponent dump routine
NULL ==============================
1HKINTERFACE MM_OMRHookInterface
NULL ------------------------------------------------------------------------
1HKINTERFACE MM_PrivateHookInterface
NULL ------------------------------------------------------------------------
1HKINTERFACE MM_HookInterface
NULL ------------------------------------------------------------------------
1HKINTERFACE J9VMHookInterface
NULL ------------------------------------------------------------------------
2HKEVENTID 1
3HKCALLCOUNT 18
3HKLAST Last Callback
4HKCALLSITE trcengine.c:392
4HKSTARTTIME Start Time: 2018-08-30T21:55:47.601
4HKDURATION DurationMs: 0
3HKLONGST Longest Callback
4HKCALLSITE trcengine.c:392
4HKSTARTTIME Start Time: 2018-08-30T21:55:47.460
4HKDURATION DurationMs: 1
NULL
...
1HKINTERFACE J9VMZipCachePoolHookInterface
NULL ------------------------------------------------------------------------
1HKINTERFACE J9JITHookInterface
NULL ------------------------------------------------------------------------
2HKEVENTID 3
3HKCALLCOUNT 65
3HKLAST Last Callback
4HKCALLSITE ../common/mgmtinit.c:191
4HKSTARTTIME Start Time: 2018-08-30T21:55:47.601
4HKDURATION DurationMs: 0
3HKLONGST Longest Callback
4HKCALLSITE ../common/mgmtinit.c:191
4HKSTARTTIME Start Time: 2018-08-30T21:55:47.486
4HKDURATION DurationMs: 0
...
NULL
</pre></div>
<h2 id="shared-classes">SHARED CLASSES</h2>
<p>If the shared classes cache is enabled at run time, the information provided in a Java dump file describes settings that were used when creating the cache, together with summary information about the size and content of the cache.</p>
<p>In the following example, the shared classes cache was created with a Class Debug Area (<code>-Xnolinenumbers=false</code>). Byte code instrumentation (BCI) is enabled, which is the default, and VMs sharing the cache are allowed to store classpaths, which is also the default.</p>
<p>The <code>Cache Summary</code> shows a cache size (<code>2SCLTEXTCSZ</code>) of 16776608 bytes, with a soft maximum size (<code>2SCLTEXTSMB</code>) also of 16776608 bytes, which leaves 12691668 bytes of free space (<code>2SCLTEXTFRB</code>). The size of the Class Debug Area (<code>2SCLTEXTDAS</code>) is 1331200 bytes and only 11% of this space is used.</p>
<p>In the <code>Cache Memory Status</code> subsection, the line <code>2SCLTEXTCMDT</code> indicates the name and location of the shared cache and <code>cr</code> indicates that the cache is a 64-bit compressed references cache.</p>
<div class="codehilite"><pre><span></span>NULL ------------------------------------------------------------------------
0SECTION SHARED CLASSES subcomponent dump routine
NULL ========================================
NULL
1SCLTEXTCRTW Cache Created With
NULL ------------------
NULL
2SCLTEXTXNL -Xnolinenumbers = false
2SCLTEXTBCI BCI Enabled = true
2SCLTEXTBCI Restrict Classpaths = false
NULL
1SCLTEXTCSUM Cache Summary
NULL ------------------
NULL
2SCLTEXTNLC No line number content = false
2SCLTEXTLNC Line number content = true
NULL
2SCLTEXTRCS ROMClass start address = 0x00007F423061C000
2SCLTEXTRCE ROMClass end address = 0x00007F42307B9A28
2SCLTEXTMSA Metadata start address = 0x00007F42313D42FC
2SCLTEXTCEA Cache end address = 0x00007F4231600000
2SCLTEXTRTF Runtime flags = 0x00102001ECA6028B
2SCLTEXTCGN Cache generation = 35
NULL
2SCLTEXTCSZ Cache size = 16776608
2SCLTEXTSMB Softmx bytes = 16776608
2SCLTEXTFRB Free bytes = 12691668
2SCLTEXTRCB ROMClass bytes = 1694248
2SCLTEXTAOB AOT code bytes = 0
2SCLTEXTADB AOT data bytes = 0
2SCLTEXTAHB AOT class hierarchy bytes = 32
2SCLTEXTATB AOT thunk bytes = 0
2SCLTEXTARB Reserved space for AOT bytes = -1
2SCLTEXTAMB Maximum space for AOT bytes = -1
2SCLTEXTJHB JIT hint bytes = 308
2SCLTEXTJPB JIT profile bytes = 2296
2SCLTEXTJRB Reserved space for JIT data bytes = -1
2SCLTEXTJMB Maximum space for JIT data bytes = -1
2SCLTEXTNOB Java Object bytes = 0
2SCLTEXTZCB Zip cache bytes = 919328
2SCLTEXTRWB ReadWrite bytes = 114080
2SCLTEXTJCB JCL data bytes = 0
2SCLTEXTBDA Byte data bytes = 0
2SCLTEXTMDA Metadata bytes = 23448
2SCLTEXTDAS Class debug area size = 1331200
2SCLTEXTDAU Class debug area % used = 11%
2SCLTEXTDAN Class LineNumberTable bytes = 156240
2SCLTEXTDAV Class LocalVariableTable bytes = 0
NULL
2SCLTEXTNRC Number ROMClasses = 595
2SCLTEXTNAM Number AOT Methods = 0
2SCLTEXTNAD Number AOT Data Entries = 0
2SCLTEXTNAH Number AOT Class Hierarchy = 1
2SCLTEXTNAT Number AOT Thunks = 0
2SCLTEXTNJH Number JIT Hints = 14
2SCLTEXTNJP Number JIT Profiles = 20
2SCLTEXTNCP Number Classpaths = 1
2SCLTEXTNUR Number URLs = 0
2SCLTEXTNTK Number Tokens = 0
2SCLTEXTNOJ Number Java Objects = 0
2SCLTEXTNZC Number Zip Caches = 5
2SCLTEXTNJC Number JCL Entries = 0
2SCLTEXTNST Number Stale classes = 0
2SCLTEXTPST Percent Stale classes = 0%
NULL
2SCLTEXTCPF Cache is 24% full
NULL
1SCLTEXTCMST Cache Memory Status
NULL ------------------
1SCLTEXTCNTD Cache Name Feature Memory type Cache path
NULL
2SCLTEXTCMDT sharedcc_doc-javacore CR Memory mapped file /tmp/javasharedresources/C290M4F1A64P_sharedcc_doc-javacore_G35
NULL
1SCLTEXTCMST Cache Lock Status
NULL ------------------
1SCLTEXTCNTD Lock Name Lock type TID owning lock
NULL
2SCLTEXTCWRL Cache write lock File lock Unowned
2SCLTEXTCRWL Cache read/write lock File lock Unowned
NULL
</pre></div>
<h2 id="classes">CLASSES</h2>
<p>The classes section shows information about class loaders. The first part is a summary that records each available class loader (<code>2CLTEXTCLLOADER</code>) followed by the number of libraries and classes that it loaded. This information is followed by a more detailed list of libraries (<code>1CLTEXTCLLIB</code>) and classes (<code>1CLTEXTCLLO</code>) that are loaded.</p>
<p>In the example we can see that the <code>java/lang/InternalAnonymousClassLoader</code> loaded 2 classes, <code>jdk/internal/loader/BuiltinClassLoader$$Lambda$2/00000000F03876A0(0x0000000001030F00)</code> and <code>jdk/internal/loader/BuiltinClassLoader$$Lambda$1/00000000F00D2460(0x0000000001018A00)</code>.</p>
<div class="codehilite"><pre><span></span>NULL ------------------------------------------------------------------------
0SECTION CLASSES subcomponent dump routine
NULL =================================
1CLTEXTCLLOS Classloader summaries
1CLTEXTCLLSS 12345678: 1=primordial,2=extension,3=shareable,4=middleware,5=system,6=trusted,7=application,8=delegating
2CLTEXTCLLOADER p---st-- Loader *System*(0x00000000FFE1D258)
3CLNMBRLOADEDLIB Number of loaded libraries 5
3CLNMBRLOADEDCL Number of loaded classes 638
2CLTEXTCLLOADER -x--st-- Loader jdk/internal/loader/ClassLoaders$PlatformClassLoader(0x00000000FFE1D4F0), Parent *none*(0x0000000000000000)
3CLNMBRLOADEDLIB Number of loaded libraries 0
3CLNMBRLOADEDCL Number of loaded classes 0
2CLTEXTCLLOADER ----st-- Loader java/lang/InternalAnonymousClassLoader(0x00000000FFE1DFD0), Parent *none*(0x0000000000000000)
3CLNMBRLOADEDLIB Number of loaded libraries 0
3CLNMBRLOADEDCL Number of loaded classes 2
2CLTEXTCLLOADER -----ta- Loader jdk/internal/loader/ClassLoaders$AppClassLoader(0x00000000FFE1DAD0), Parent jdk/internal/loader/ClassLoaders$PlatformClassLoader(0x00000000FFE1D4F0)
3CLNMBRLOADEDLIB Number of loaded libraries 0
3CLNMBRLOADEDCL Number of loaded classes 0
1CLTEXTCLLIB ClassLoader loaded libraries
2CLTEXTCLLIB Loader *System*(0x00000000FFE1D258)
3CLTEXTLIB /home/me/openj9-openjdk-jdk9/build/linux-x86_64-normal-server-release/images/jdk/lib/compressedrefs/jclse9_29
3CLTEXTLIB /home/me/openj9-openjdk-jdk9/build/linux-x86_64-normal-server-release/images/jdk/lib/java
3CLTEXTLIB /home/me/openj9-openjdk-jdk9/build/linux-x86_64-normal-server-release/images/jdk/lib/compressedrefs/j9jit29
3CLTEXTLIB /home/me/openj9-openjdk-jdk9/build/linux-x86_64-normal-server-release/images/jdk/lib/zip
3CLTEXTLIB /home/me/openj9-openjdk-jdk9/build/linux-x86_64-normal-server-release/images/jdk/lib/nio
1CLTEXTCLLOD ClassLoader loaded classes
2CLTEXTCLLOAD Loader *System*(0x00000000FFE1D258)
3CLTEXTCLASS [Ljava/lang/Thread$State;(0x0000000001056400)
...
2CLTEXTCLLOAD Loader jdk/internal/loader/ClassLoaders$PlatformClassLoader(0x00000000FFE1D4F0)
2CLTEXTCLLOAD Loader java/lang/InternalAnonymousClassLoader(0x00000000FFE1DFD0)
3CLTEXTCLASS jdk/internal/loader/BuiltinClassLoader$$Lambda$2/00000000F03876A0(0x0000000001030F00)
3CLTEXTCLASS jdk/internal/loader/BuiltinClassLoader$$Lambda$1/00000000F00D2460(0x0000000001018A00)
2CLTEXTCLLOAD Loader jdk/internal/loader/ClassLoaders$AppClassLoader(0x00000000FFE1DAD0)
</pre></div>
<!-- ==== END OF TOPIC ==== dump_javadump.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="../diag_overview/" title="Tools and data" 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>
</div>
<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>
Tools and data
</span>
</div>
</a>
<a href="../dump_heapdump/" title="Heap dump" 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
</span>
Heap dump
</span>
</div>
<div class="md-flex__cell md-flex__cell--shrink">
<i class="md-icon md-icon--arrow-forward md-footer-nav__button"></i>
</div>
</a>
</nav>
</div>
</article>
</div>
</div>
</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
* Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
-->
<cite></cite>
<footer class="md-footer">
<div class="md-footer-meta md-typeset">
<!--
* 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-social1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<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>
<a href="https://twitter.com/openj9" class="md-footer-social__link fa fa-twitter"></a>
<a href="https://stackoverflow.com/search?q=OpenJ9" class="md-footer-social__link fa fa-stack-overflow"></a>
</div>
<div class="md-footer-eclipse1">OpenJ9 is an Eclipse Incubator project.</div>
<div class="md-footer-links1">
<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>
&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/privacy.php">Privacy policy</a></span>
&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/termsofuse.php">Website terms of use</a></span>
&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>
&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">Legal</a></span>
</div>
<div class="md-footer-power1">
powered by
<a href="http://www.mkdocs.org" title="MkDocs">MkDocs</a>
and
<a href="http://squidfunk.github.io/mkdocs-material/" title="Material for MkDocs">
Material for MkDocs</a><br/><br/>
</div>
</div>
</footer>
</div>
<script src="../assets/javascripts/application.abd7b172.js"></script>
<script>app.initialize({version:"0.17.2",url:{base:".."}})</script>
</body>
</html>