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Bug 326272

Summary: Dedlock when starting Eclipse and waiting for all EJB-Validators finished
Product: [WebTools] WTP Java EE Tools Reporter: Stefan Cordes <rsc>
Component: jst.j2eeAssignee: jst.j2ee <jst.j2ee-inbox>
Status: CLOSED DUPLICATE QA Contact: Chuck Bridgham <cbridgha>
Severity: normal    
Priority: P3 CC: amj87.iitr, ccc
Version: 3.1   
Target Milestone: ---   
Hardware: PC   
OS: Windows XP   
Whiteboard:
Attachments:
Description Flags
Thread Dump from VisualVM
none
30 seconds earlier VisualVM Thread dump. none

Description Stefan Cordes CLA 2010-09-27 03:40:11 EDT 
Build Identifier: 20100218-1602

Sometimes when starting my workspace there are more than one Jobs in the Progress view at 0% with "starting validator for ....".

Attached find Thread-Dumps taken with VisualVM.
(4 Validator were waiting in the Progress View).


Reproducible: Sometimes

Steps to Reproduce:
1. Start Eclipse with approx 60 Projects (20 of them EJB-Projects)
Comment 1 Stefan Cordes CLA 2010-09-27 03:40:49 EDT 
Created attachment 179605 [details]
Thread Dump from VisualVM
Comment 2 Stefan Cordes CLA 2010-09-27 03:43:14 EDT 
Created attachment 179606 [details]
30 seconds earlier VisualVM Thread dump.

No progress in Eclipse: (Diff of 30 Seconds delayed thread dumps):
 9:42:13,23 C:\TEMP>fc t1.txt t2.txt
Comparing files t1.txt and T2.TXT
***** t1.txt

2010-09-27 09:08:27
Full thread dump Java HotSpot(TM) Client VM (17.0-b17 mixed mode, sharing):
***** T2.TXT

2010-09-27 09:08:03
Full thread dump Java HotSpot(TM) Client VM (17.0-b17 mixed mode, sharing):
*****

***** t1.txt

"Attach Listener" daemon prio=10 tid=0x03236c00 nid=0x854 runnable [0x00000000]
   java.lang.Thread.State: RUNNABLE
***** T2.TXT

"Attach Listener" daemon prio=10 tid=0x03236c00 nid=0x854 waiting on condition [0x00000000]
   java.lang.Thread.State: RUNNABLE
*****

***** t1.txt

JNI global references: 1724

***** T2.TXT

JNI global references: 1723

*****
Comment 3 Ayushman Jain CLA 2010-09-27 04:45:23 EDT 
Not a JDT/Core issue. Moving to web tools for comment.
Comment 4 Kaloyan Raev CLA 2010-09-28 06:16:32 EDT 
Looks like a problem in the J2EE EMF models. Perhaps, thread "Worker-21" is the problematic one. 

Unfortunately, I am not quite familiar with these models. Could some of the other JEE Tools committers take a look?
Comment 5 Carl Anderson CLA 2010-09-28 09:43:39 EDT 
You seem to have encountered bug 315286 which, unfortunately, was fixed in WTP 3.2.1, while you are using WTP 3.1.2 (guessing from your build identifier).  The EMF models are attempting to initialize each other in a non-thread-safe way.

We just announced Helios SR1, which contains the fix for your issue.  I would highly recommend using that, if at all possible.

*** This bug has been marked as a duplicate of bug 315286 ***
Comment 6 Stefan Cordes CLA 2010-10-25 06:07:10 EDT 
Still happens with
Version: Helios Service Release 1
Build id: 20100917-0705