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Bug 417944

Summary:	Race Condition in org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager
Product:	[Eclipse Project] JDT	Reporter:	Thomas Krieger <krieger.thomas>
Component:	Debug	Assignee:	Sarika Sinha <sarika.sinha>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	normal
Priority:	P3	CC:	Michael_Rennie
Version:	4.2
Target Milestone:	---
Hardware:	PC
OS:	Windows Vista
Whiteboard:	stalebug

Description Thomas Krieger

2013-09-24 12:27:59 EDT

The Methods from the class LaunchingResourceManager are accessed from different threads. getLabel and org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run are both accessing 
the  HashMap fExtCache without synchronization. This leads to a race condition:

See trace generated by vmlens (http://vmlens.com)
 

Worker-8 (65)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   
   Worker-8 (65)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-8 (65)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run


   Worker-8 (65)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-8 (65)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-8 (65)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-8 (65)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-4 (27)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-4 (27)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-4 (27)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-11 (119)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-11 (119)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-11 (119)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-9 (68)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-6 (29)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-6 (29)  java.util.HashMap.createEntry
      java.util.HashMap.createEntry
      java.util.HashMap.addEntry
      java.util.HashMap.put
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-6 (29)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-8 (65)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

   Worker-4 (27)  java.util.HashMap.clear
      java.util.HashMap.clear
      org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run
      org.eclipse.core.internal.jobs.Worker.run

Comment 1 Sarika Sinha

2016-05-09 05:35:49 EDT

Can you please provide the steps to reproduce so that we can verify the fix.

Comment 2 Eclipse Genie

2020-04-21 17:56:20 EDT

This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. As such, we're closing this bug.

If you have further information on the current state of the bug, please add it and reopen this bug. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.