<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
</head>
<body>
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr">
<p>There are lots of paths that clear the interrupted flag. In your example, I hit at least this one when calling Thread.currentThread from the watch panel:<br>
<br>
```<br>
</p>
<div> at java.base/java.lang.Thread.interrupted(Thread.java:1030)<br>
at java.base/jdk.internal.loader.Resource.getBytes(Resource.java:96)<br>
at java.base/jdk.internal.loader.URLClassPath$JarLoader$2.getBytes(URLClassPath.java:895)<br>
at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:859)<br>
at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760)<br>
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)<br>
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)<br>
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)<br>
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)<br>
at java.base/java.lang.Class.forName0(Native Method)<br>
at java.base/java.lang.Class.forName(Class.java:467)</div>
<br>
```<br>
<br>
but the key for your example seems to be <a href="https://github.com/openjdk/jdk17u/blob/master/src/hotspot/share/prims/jvmtiRawMonitor.cpp" class="OWAAutoLink">
https://github.com/openjdk/jdk17u/blob/master/src/hotspot/share/prims/jvmtiRawMonitor.cpp</a>. If you replace is_interrupted(true) with is_interrupted(false) in the 3 calls from that file, your example works as you expect. That might help your investigations.<br>
<br>
Oli<br>
<p></p>
</div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> serviceability-dev <serviceability-dev-retn@openjdk.org> on behalf of Egor Ushakov <egor.ushakov@jetbrains.com><br>
<b>Sent:</b> 20 August 2024 13:32:36<br>
<b>To:</b> serviceability-dev<br>
<b>Subject:</b> [EXTERNAL] Thread.interrupted() is always false in debugger</font>
<div> </div>
</div>
<div>
<div class="WordSection1">
<table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" style="border-collapse:collapse;border:none">
<tbody>
<tr style="height:15.25pt">
<td width="711" valign="top" style="width:842.35pt;border:solid #ED7D31 1.5pt;padding:0in 5.4pt 0in 5.4pt;height:15.25pt">
<p><strong><span style="background:#FFFF99">CAUTION</span></strong><span style="background:#FFFF99">: This email originated from outside of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe.</span><o:p></o:p></p>
</td>
</tr>
</tbody>
</table>
</div>
<br>
<div>Hi everyone!<br>
<br>
we have a long standing issue <a class="moz-txt-link-freetext" href="https://youtrack.jetbrains.com/issue/IDEA-169706">
https://youtrack.jetbrains.com/issue/IDEA-169706</a><br>
Maybe someone could clarify why it happens and if there's a possible workaround.<br>
Here's the simplified test case:<br>
<div style="background-color:#ffffff;color:#080808">
<pre style="font-family:'Source Code Pro',monospace;font-size:12,0pt;"><span style="color:#0033b3;">public class </span><span style="color:#000000;">Interruption </span>{
<span style="color:#0033b3;">public static void </span><span style="color:#00627a;">main</span>(<span style="color:#000000;">String</span>[] <span style="color:#000000;">args</span>) {
<span style="color:#000000;">Thread thread </span>= <span style="color:#000000;">Thread</span>.<span style="font-style:italic;">currentThread</span>();
<span style="color:#000000;">thread</span>.interrupt();
<span style="color:#0033b3;">if </span>(<span style="color:#000000;">Thread</span>.<span style="font-style:italic;">interrupted</span>()) { // <----- stop on a breakpoint here
<span style="color:#000000;">System</span>.<span style="color:#871094;font-style:italic;">out</span>.println(<span style="color:#067d17;">"Interrupted"</span>);
} <span style="color:#0033b3;">else </span>{
<span style="color:#000000;">System</span>.<span style="color:#871094;font-style:italic;">out</span>.println(<span style="color:#067d17;">"Not interrupted"</span>);
}
}
}
Obviously the program prints:
<span style="color:#067d17;">Interrupted
</span><font color="#000000">But if stopped on a breakpoint in the debugger, evaluation of </font>
<span style="color:#000000;">Thread</span>.<span style="font-style:italic;">interrupted</span>() always returns false.
More of that <i>interrupted </i>field value in the thread object is also reported as false:
<img alt="" src="cid:part1.0kKqwZN7.J5KQ0NPA@jetbrains.com">
If interrupted method is debugged step by step it is obvious that interrupted value is true,
but the debugger continue to show it as false.
Any ideas why it could happen and how to fix it?
Thanks!
Egor
</pre>
</div>
</div>
</div>
<br><br><br>Amazon Development Centre (London) Ltd.Registered in England and Wales with registration number 04543232 with its registered office at 1 Principal Place, Worship Street, London EC2A 2FA, United Kingdom.<br><br><br>
</body>
</html>