Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.
Bug 319471 - helios hangs when select Run/Debug settings page
Summary: helios hangs when select Run/Debug settings page
Status: CLOSED DUPLICATE of bug 319514
Alias: None
Product: JDT
Classification: Eclipse Project
Component: Core (show other bugs)
Version: 3.7   Edit
Hardware: PC Windows Vista
: P3 critical (vote)
Target Milestone: ---   Edit
Assignee: JDT-Core-Inbox CLA
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-07-10 16:09 EDT by Richard Melvin CLA
Modified: 2010-07-15 11:07 EDT (History)
3 users (show)

See Also:

Attachments
thread dump from hang (14.86 KB, application/octet-stream)
2010-07-10 16:13 EDT, Richard Melvin CLA 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Richard Melvin CLA 2010-07-10 16:09:54 EDT 
Build Identifier: 20100617-1415

Hangs indefinitely using 25% of the cpu (on a quad core machine).

Reproducible: Always

Steps to Reproduce:
1. Open my jave project
2. Open Project properties
3. select some other page
4. select Run/Debug settings page
Comment 1 Richard Melvin CLA 2010-07-10 16:13:29 EDT 
Created attachment 173950 [details]
thread dump from hang

PID: 220
Host: localhost
Main class: org.eclipse.equinox.launcher.Main
Arguments: -os win32 -ws win32 -arch x86_64 -showsplash -launcher C:\work\helios\eclipse\eclipse.exe -name Eclipse --launcher.library C:\work\helios\eclipse\\plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.0.v20100503\eclipse_1307.dll -startup C:\work\helios\eclipse\\plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar -exitdata a88_60 -product org.eclipse.epp.package.java.product -vm C:\Windows\system32\javaw.exe -vmargs -Dosgi.requiredJavaVersion=1.5 -Xms40m -Xmx884m -jar C:\work\helios\eclipse\\plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar

JVM: Java HotSpot(TM) 64-Bit Server VM (17.0-b16, mixed mode)
Java Home: C:\Program Files\Java\jre6
JVM Flags: <none>

Heap dump on OOME: disabled
Comment 2 Ayushman Jain CLA 2010-07-12 03:06:47 EDT 
I couldnt reproduce this on a few java projects that I tried on. The thread dump tells me that you have mylyn in your eclipse installation, which may be the cause of the problem.

Are you facing this issue only on a particular project in your workspace or every project? If your answer to the former is yes, can you please attach the project? Thanks!
Comment 3 Olivier Thomann CLA 2010-07-12 08:46:35 EDT 
The dump doesn't show any thread blocked on JDT code.
Comment 4 Richard Melvin CLA 2010-07-13 19:21:40 EDT 
I suspect it is probably an issue with some underlying technology rather than JDT as such, but I can't tell which.

Things that didn't resolve the problem:

1. creating new workspace
2. using different project
3. uninstalling all optional plugins
4. reinstalling helios

Thing that did resolve the problem:

1. uninstalling jdk update 21, dropping back to 19.

Is there a known issue with that jdk on 64 bit windows?
Comment 5 Richard Melvin CLA 2010-07-13 19:31:14 EDT 
In fact, probably a duplicate of bug#319514.
Comment 6 Remy Suen CLA 2010-07-13 19:31:52 EDT 
(In reply to comment #5)
> In fact, probably a duplicate of bug#319514.

Yes, that is likely the cause. Others have reported hanging symptoms, please see bug 319495.
Comment 7 Olivier Thomann CLA 2010-07-15 11:07:50 EDT 

*** This bug has been marked as a duplicate of bug 319514 ***