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Bug 36394

Summary:	Hundreds of JavaFastOpen.Evaluator threads left in VM
Product:	editor	Reporter:	Jesse Glick <jglick>
Component:	-- Other --	Assignee:	issues@editor <issues>
Status:	RESOLVED FIXED
Severity:	blocker	CC:	issues, phrebejk, pnejedly
Priority:	P2	Keywords:	PERFORMANCE
Version:	3.x
Hardware:	PC
OS:	Linux
Issue Type:	DEFECT	Exception Reporter:
Attachments:	Java code snippet Sample output

Description Jesse Glick 2003-10-02 01:59:14 UTC

I am not exactly sure why this is, but JFO.E
threads do not seem to be garbage collected
properly after they die.

Also JCUpdater threads seem to live as zombies.

Try the attached block of code in internal
execution (e.g. paste into Scripting Console under
Dynamic Java). [dev sep 30]

Comment 1 Jesse Glick 2003-10-02 01:59:49 UTC

Created attachment 11767 [details]
Java code snippet

Comment 2 Jesse Glick 2003-10-02 02:02:30 UTC

Created attachment 11768 [details]
Sample output

Comment 3 Jesse Glick 2003-10-02 02:28:08 UTC

Hint: try to avoid creating Thread's you don't plan to ever start()
(as I see is done in some places with SwingUtilities here).
ThreadGroup seems to have a bug about unstarted threads. Just make a
Runnable and post it instead.

Comment 4 Jesse Glick 2003-10-02 23:48:04 UTC

BTW I will escalate:

http://developer.java.sun.com/developer/bugParade/bugs/4533087.html

Comment 5 Miloslav Metelka 2004-01-23 15:20:59 UTC

This appears to be fixed in tiger-beta but we will try to avoid the
threads that never run anyway into 3.6.

Comment 6 Miloslav Metelka 2004-06-14 14:29:48 UTC

*** Issue 44771 has been marked as a duplicate of this issue. ***

Comment 7 Petr Nejedly 2004-06-14 20:21:10 UTC

OK, but please keep the relevant attributes and copy cc-ers.
Not only threads are left but it can also cause moderate memory leak.

Comment 8 Miloslav Metelka 2004-07-20 12:53:20 UTC

Fixed in trunk:
Checking in libsrc/org/netbeans/editor/ext/java/JavaFastOpen.java;
/cvs/editor/libsrc/org/netbeans/editor/ext/java/JavaFastOpen.java,v 
<--  JavaFastOpen.java
new revision: 1.21; previous revision: 1.20

Comment 9 Max Sauer 2005-07-13 16:22:40 UTC

Jesse, could You please verify this issue? Thanks.