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| Thread Dumps |
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| <H1><A name="ThreadDumps-Java5tools"></A>Java 5 tools</H1> |
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| <P>This should work on any Java 5 or newer platform.</P> |
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| <DIV class="preformatted panel" style="border-width: 1px;"><DIV class="preformattedContent panelContent"> |
| <PRE>$ jps |
| 3392 Jps |
| 3387 JConsole |
| </PRE> |
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| <DIV class="preformatted panel" style="border-width: 1px;"><DIV class="preformattedContent panelContent"> |
| <PRE>$ jstack 3387 |
| Attaching to process ID 3387, please wait... |
| Debugger attached successfully. |
| Client compiler detected. |
| JVM version is 1.5.0_16-133 |
| Thread t@59139: (state = BLOCKED) |
| - java.lang.Object.wait(long) @bci=0 (Interpreted frame) |
| - javax.swing.TimerQueue.run() @bci=14, line=236 (Interpreted frame) |
| - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame) |
| </PRE> |
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| |
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| <H1><A name="ThreadDumps-OSsignals"></A>OS signals</H1> |
| |
| <P>In the case of an OS signal the thread dump is printed to the console window that started the java process. If you use javaw to start the process, the dump is lost.</P> |
| |
| <P>On Windows, typing <B>ctrl-break</B> in the console window that started the Java process.<BR> |
| On Unix, the command <B>kill -QUIT <pid></B> or typing <B>ctrl-\</B> in the console window that started the Java process.</P> |
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