blocks|key|2939796|text|在尝试使用带有jdk-12.0.1_windows-x64_bin.zip思想的调试器时，安装了IntelliJ之后也出现了这个问题。我收到了一个错误(Java+HotSpot(TM)+64位服务器VM警告:只有引导加载器类支持共享，因为引导类路径已经附加了)。我也发现，进入设置和搜索异步，并取消检查仪器代理框。为我工作！|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|BOLD|entityRanges|data|2939797|📷|atomic|2939798|​|2939799|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/d8f350dd6fb6953feb94c8b8489d807e.png|imageAlt^0|7|U|24|1H|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|D]]|E|@]|F|$]]|$1|G|3|H|5|I|7|Z|8|@]|E|@$9|10|A|11|1|12]]|F|$]]|$1|J|3|K|5|6|7|13|8|@]|E|@]|F|$]]|$1|L|3|-4|5|6|7|14|8|@]|E|@]|F|$]]]|M|$N|$5|O|P|Q|F|$R|S|T|-4]]]]

I had this issue too after installing <code>jdk-12.0.1_windows-x64_bin.zip</code> when trying to use the debugger with IntelliJ IDEA. I was getting an error of (Java HotSpot(TM) 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended). I found, too, going into Setting and search for async and unchecking the Instrumenting agent box. Worked for me!
<a href="https://i.stack.imgur.com/0ZO6l.png" rel="noreferrer"><img src="https://i.stack.imgur.com/0ZO6l.png" alt="ASYNC settings"></a>

blocks|key|2097057|text|你可以忽略这个警告。这只意味着，对于引导类加载器未加载的类，类数据共享将被禁用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2097058|来自改进发射时间[…]与应用程序类-数据共享|offset|length|2097059|JVM用引导类加载器加载一些JDK类，其余的用系统类加载器加载，但它们都包含在它的默认存档中。当IntelliJ执行您的项目时，它会告诉JVM通过在类路径(消息的第二部分)后面附加引导类加载器来加载一些代码。现在，这意味着存档中包含由系统类加载器加载的类的部分可能失效，因此JVM部分地禁用共享(消息的第一部分)。|blockquote|2097060|您可以完全禁用与-Xshare:off的类数据共享，但会丢失一些性能。|style|CODE|2097061|entityMap|0|LINK|mutability|MUTABLE|url|https://nipafx.dev/java-application-class-data-sharing/^0|0|2|K|0|0|0|8|B|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@$D|W|E|X|1|Y]]|A|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|10|8|@$D|11|E|12|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

You can ignore this warning. It just means that class data sharing is disabled for classes not loaded by the bootstrap class loader.
From <a href="https://nipafx.dev/java-application-class-data-sharing/" rel="noreferrer">Improve Launch Times […] With Application Class-Data Sharing</a>:
<blockquote>
The JVM loads some of the JDK classes with the bootstrap class loader
and the rest with the system class loader, but includes all of them in
its default archive. When IntelliJ executes your project, it tells the
JVM to load some code with the bootstrap class loader by appending to
that class path (second part of the message). Now, that means that the
portion of the archive that contains classes loaded by the system
class loader is potentially invalidated and so the JVM partially
deactivates sharing (first part of the message).
</blockquote>
You could disable class data sharing completely with <code>-Xshare:off</code>, but you would lose some performance.

blocks|key|862000|text|在试图使用Intellij调试器时，我在安装Java12之后出现了这个问题。我找到的解决方案是进入设置和搜索异步，并取消检查检测代理框。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|862001|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had this issue after installing Java12 when trying to use the debugger with Intellij Idea. The solution that I found was to go into Setting and searching for async and unchecking the Instrumenting agent box.

blocks|key|2939716|text|对我来说，这个问题只有在我在Docker中运行时，以及当我使用像DataDog+APM代理(-javaagent:/dd-java-agent.jar)这样的java命令行代理时才会出现。当我在JDK11运行时环境中运行时(没有代理)，我没有收到警告。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2939717|entityMap^0|1A|T|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

For me, the issue occurred only when I ran in Docker, and when I used a java command line agent like the DataDog APM agent (<code>-javaagent:/dd-java-agent.jar</code>).
When I ran in my JDK11 runtime environment (without the agent) I did not get the warnings.

blocks|key|860124|text|对于Intellij+->设置/首选项对话框(+Ctrl%2BAlt%2BS+)，请转到构建/异步->取消检测代理|type|unstyled|depth|inlineStyleRanges|entityRanges|data|860125|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For Intellij IDE -> Settings/Preferences dialog ( Ctrl+Alt+S ), go to Build | Execution | Deployment | Debugger | Async -> uncheck instrumenting agent

blocks|key|2940036|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2940037|📷|atomic|offset|length|2940038|2940039|1.打开Preferences选项；|style|BOLD|2940040|2.查找构建、执行、部署选项；|2940041|3.输入调试器->异步堆栈跟踪；|2940042|4.取消检查工具代理(需要重新启动调试器)；|2940043|请看这个获取详细信息。|2940044|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/6f8d610249d58789eb259e0ca86dd61e.png|imageAlt|1|LINK|MUTABLE|url|https://www.jetbrains.com/help/idea/async-stacktraces.html^0|0|0|1|0|0|0|4|B|0|4|8|0|4|B|0|6|F|0|4|6|1|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|18|8|@]|9|@$E|19|F|1A|1|1B]]|A|$]]|$1|G|3|4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|1D|8|@$E|1E|F|1F|J|K]]|9|@]|A|$]]|$1|L|3|M|5|6|7|1G|8|@$E|1H|F|1I|J|K]]|9|@]|A|$]]|$1|N|3|O|5|6|7|1J|8|@$E|1K|F|1L|J|K]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1M|8|@$E|1N|F|1O|J|K]]|9|@]|A|$]]|$1|R|3|S|5|6|7|1P|8|@]|9|@$E|1Q|F|1R|1|1S]]|A|$]]|$1|T|3|-4|5|6|7|1T|8|@]|9|@]|A|$]]]|U|$V|$5|W|X|Y|A|$Z|10|11|-4]]|12|$5|13|X|14|A|$15|16]]]]

<img src="https://i.stack.imgur.com/o74bX.png" alt="Operation guide" />
1.Open the Preferences option;
2.Find the Build,Execution,Deployment option;
3.Enter the Debugger --&gt; Async Stack Traces ;
4.Uncheck the Instrumenting agent(requires debugger restart) ;
<hr />
Please see this <a href="https://www.jetbrains.com/help/idea/async-stacktraces.html" rel="nofollow noreferrer">for detailed information</a>.

blocks|key|2939976|text|如果不是关键，可以更改jdk版本。我已经从jdk14改为jdk+11，希望它对您有用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2939977|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If it is not critical you can change your jdk version. I've changed from jdk14 to jdk 11. Hope it will work for you.

blocks|key|2940101|text|有同样的问题，并试图解决上面写的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2940102|但后来我找到了另一个解决问题的方法，没有改变设置。|2940103|按鼠标右键在您的文件中放置断点，并希望调试。然后选择"Debug+ur+file+name.method()“。|2940104|不要使用“工具”窗口中的调试按钮。似乎问题是这个想法不能理解你想要调试哪个文件。|2940105|这在不改变异步设置的情况下对我有效。|2940106|屏幕截图|offset|length|2940107|entityMap|0|LINK|mutability|MUTABLE|url|https://i.stack.imgur.com/Zfi0A.png^0|0|0|0|0|0|0|4|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|Z|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|10|8|@]|9|@$L|11|M|12|1|13]]|A|$]]|$1|N|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]]]

Got same problem, and tried to solve it as was written above.
But then i got another solution of problem without changing settings.
Press mouse right button on your file where you put break point and want to debug. Then choose &quot;Debug ur file name.method()&quot;.
Don't use debug button from tools window. Seems the problem is that Idea can't understand which file u want to debug.
That worked for me without changing async settings.
<a href="https://i.stack.imgur.com/Zfi0A.png" rel="nofollow noreferrer">Screenshot</a>

blocks|key|2097356|text|得到了同样的问题，并试图解决它是写的所有上述方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2097357|但是，我仍然无法调试我的文件--唯一的原因是，在调试您的程序之前，您需要设置调试点，直到我们要调试的那个点。因此，只需单击图中所示的位置，并设置调试点，我们的程序将很容易调试。而不做任何其他事情。在这里输入图像描述|offset|length|2097358|entityMap|0|LINK|mutability|MUTABLE|url|https://i.stack.imgur.com/qpUYs.png^0|0|2Q|9|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Got the same problem, and tried to solve it as was written all the above methods.
But still, I wasn't able to debug my file the only reason is that before debugging your program you need to set debug point that till which point we want to debug. So just click on the place shown in the figure and set debug point then our program will debug easily. without doing anything else. <a href="https://i.stack.imgur.com/qpUYs.png" rel="nofollow noreferrer">enter image description here</a>

blocks|key|860254|text|鉴于IntelliJ中的此警告是无害的(请参阅https://stackoverflow.com/a/57957031/779173)，您只需右键单击该行并选择“折叠行”，就可以将该行隐藏在控制台视图中。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|860255|做完这些之后，你就会看到：|860256|"C:\Program+Files\Java\jdk-17.0.2\bin\java.exe"+...+<1+internal+line>|code-block|syntax|javascript|860257|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/57957031/779173^0|N|17|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Given this warning in IntelliJ is harmless (see <a href="https://stackoverflow.com/a/57957031/779173">https://stackoverflow.com/a/57957031/779173</a>) you could just hide the line from your Console view by right-clicking on the line and selecting &quot;Fold Lines Like This&quot;
Having done this, you'll just see:
<pre class="lang-none prettyprint-override"><code>&quot;C:\Program Files\Java\jdk-17.0.2\bin\java.exe&quot; ... &lt;1 internal line&gt;
</code></pre>

blocks|key|2939920|text|Java版本必须是9或更高版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2939921|​|2939922|📷|atomic|offset|length|2939923|2939924|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/ed3b09f581f7c84ef2fbad482965845a.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

Java version must be 9 or higher.

<img src="https://i.stack.imgur.com/2AP4D.png" alt="enter image description here">

blocks|key|862115|text|今天我发现了和你一样的问题。情境:调试时不设置断点解决方案:在单击“调试”按钮之前至少设置一个断点！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|862116|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Today I found the same question as you.
Situation: debug while set no breakpoint
Solution: set at least one breakpoint before you click debug button!

blocks|key|2940059|text|您必须将红色的点放置在代码行的左侧，您将进行调试。如果没有，你可以在IntelliJ上做按摩|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2940060|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You have to put the red dots at the left side of the code line you will make debug .
if not you get this massage on IntelliJ

Recently I switched to the Java 11 and start to debug my app and saw this message:

<blockquote>
 OpenJDK 64-Bit Server VM warning: Sharing is only supported for boot
 loader classes because bootstrap classpath has been appended
</blockquote>

Found only <a href="http://hg.openjdk.java.net/jdk/jdk/rev/18fba780c1d1" rel="noreferrer">this commit</a> and <a href="https://bugs.openjdk.java.net/browse/JDK-8203031" rel="noreferrer">ticket</a>, but it doesn't tell me much. 

Do I need to worry about it?

How to avoid "Sharing is only supported for boot loader classes because bootstrap classpath has been appended" warning during debug with Java 11?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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最近，我切换到Java 11并开始调试我的应用程序，并看到了以下消息：OpenJDK 64位服务器VM警告:只有引导加载程序类才支持共享，因为引导类路径已经追加只找到了和，但它并没有告诉我什么。我需要担心吗？

问如何避免在使用Java 11进行调试时出现“仅支持引导加载器类的共享，因为引导带类路径已附加”警告？
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问如何避免在使用Java 11进行调试时出现“仅支持引导加载器类的共享，因为引导带类路径已附加”警告？EN

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问如何避免在使用Java 11进行调试时出现“仅支持引导加载器类的共享，因为引导带类路径已附加”警告？
EN