https://wiki.riguz.com/index.php?action=history&feed=atom&title=Debug_JDK_source_code 2026-06-02T20:10:04Z 本wiki上该页面的版本历史 MediaWiki 1.42.3 https://wiki.riguz.com/index.php?title=Debug_JDK_source_code&diff=3854&oldid=prev 2023-12-19T11:37:37Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="zh-Hans-CN"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2023年12月19日 (二) 11:37的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l30">第30行：</td> <td colspan="2" class="diff-lineno">第30行：</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://stackoverflow.com/questions/18255474/debug-jdk-source-cant-watch-variable-what-it-is debug jdk source can&#039;t watch variable what it is]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://stackoverflow.com/questions/18255474/debug-jdk-source-cant-watch-variable-what-it-is debug jdk source can&#039;t watch variable what it is]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:<del style="font-weight: bold; text-decoration: none;">JVM</del>]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:<ins style="font-weight: bold; text-decoration: none;">JDK</ins>]]</div></td></tr> <!-- diff cache key wiki_db:diff:1.41:old-3853:rev-3854:php=table --> </table>

Riguz https://wiki.riguz.com/index.php?title=Debug_JDK_source_code&diff=3853&oldid=prev 2023-12-19T11:37:00Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="zh-Hans-CN"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2023年12月19日 (二) 11:37的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l29">第29行：</td> <td colspan="2" class="diff-lineno">第29行：</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://stackoverflow.com/questions/1313922/step-through-jdk-source-code-in-intellij-idea Step through JDK source code in IntelliJ IDEA]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://stackoverflow.com/questions/1313922/step-through-jdk-source-code-in-intellij-idea Step through JDK source code in IntelliJ IDEA]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://stackoverflow.com/questions/18255474/debug-jdk-source-cant-watch-variable-what-it-is debug jdk source can&#039;t watch variable what it is]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://stackoverflow.com/questions/18255474/debug-jdk-source-cant-watch-variable-what-it-is debug jdk source can&#039;t watch variable what it is]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:JVM]]</ins></div></td></tr> <!-- diff cache key wiki_db:diff:1.41:old-3823:rev-3853:php=table --> </table>

Riguz https://wiki.riguz.com/index.php?title=Debug_JDK_source_code&diff=3823&oldid=prev 2023-12-19T09:03:45Z

<p>Riguz移动页面<a href="/index.php?title=Blog:%E8%B0%83%E8%AF%95JDK%E6%BA%90%E7%A0%81&amp;action=edit&amp;redlink=1" class="new" title="Blog:调试JDK源码（页面不存在）">Blog:调试JDK源码</a>至<a href="/Debug_JDK_source_code" title="Debug JDK source code">Debug JDK source code</a>，不留重定向</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="zh-Hans-CN"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">2023年12月19日 (二) 09:03的版本</td> </tr><tr><td colspan="2" class="diff-notice" lang="zh-Hans-CN"><div class="mw-diff-empty">（没有差异）</div> </td></tr></table>

Riguz https://wiki.riguz.com/index.php?title=Debug_JDK_source_code&diff=2575&oldid=prev 2020-01-25T00:00:00Z

<p>最近想要直接调试下JDK的源码却发现有些变量不能显示，像这样： </p> <p><b>新页面</b></p><div>最近想要直接调试下JDK的源码却发现有些变量不能显示，像这样：<br /> <br /> [[File:Intellij-no-debuginfo.png|600px|IntelliJ]]<br /> <br /> <br /> 其原因是因为JDK中的rt.jar在release的时候没有附带调试信息。所以解决这个问题的思路是这样的：<br /> <br /> * 重新编译你想要调试的类(`javac -g`)<br /> * 将带调试信息的类覆盖原来的<br /> * 重新进行调试<br /> <br /> 实际上，在IntelliJ中操作起来可能比较简单，可以分为以下几步：<br /> <br /> * 将jdk的源码从JDK中拷贝出来，例如/Library/Java/JavaVirtualMachines/jdk1.8.0_231.jdk/Contents/Home/src.zip<br /> * 将源码解压，并将其中`java`,`javax`两个文件夹拷贝到一个空的Java工程中<br /> * 编译源码，IntelliJ默认设置编译是包含了调试信息的。编译完成之后，将其[https://www.jetbrains.com/help/idea/packaging-a-module-into-a-jar-file.html# 导出到jar包]中。<br /> * 将导出的jar包（比如说rt_debug.jar)放入到`$JAVA_HOME/jre/lib/endorsed`文件夹下面即可。如果这个目录不存在，手动创建一下。<br /> * 重新进行调试即可。<br /> <br /> <br /> [[File:Intellij-with-debuginfo.png|600px|IntelliJ]]<br /> <br /> 事实上，这里利用了`endorsed-standards override mechanism`这一个JVM特性来重载了Java的类，这个特性已经在Java8中被deprecated了([https://www.java.com/en/download/faq/release_changes.xml release notes for Java 8 Update 40 (8u40) ])，但是Java8中仍然可用。<br /> <br /> &gt; The endorsed-standards override mechanism and the extension mechanism are deprecated and may be removed in a future release. There are no runtime changes. Existing applications using the &#039;endorsed-standards override&#039; or &#039;extension&#039; mechanisms are recommended to migrate away from using these mechanisms.<br /> <br /> Reference:<br /> <br /> * [https://stackoverflow.com/questions/1313922/step-through-jdk-source-code-in-intellij-idea Step through JDK source code in IntelliJ IDEA]<br /> * [https://stackoverflow.com/questions/18255474/debug-jdk-source-cant-watch-variable-what-it-is debug jdk source can&#039;t watch variable what it is]</div>

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