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Recently I observed that the PDE.UI Jenkins build-job sometimes freezes and finally times out when running the org.eclipse.pde.api.tools.tests.ApiToolsPluginTestSuite. Just with my latest Gerrit-Change I got the freez two times with the same Commit and the thrid build finally succeeded. Thanks to Bug 578391 I can now provide the StackTraces below. Running org.eclipse.pde.api.tools.tests.ApiToolsPluginTestSuite reflectNestedClassUseDollar=true due to isJRE9Plus Possible frozen test case "main": TIMED_WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) org.eclipse.jdt.internal.core.search.processing.JobManager.performConcurrentJob(JobManager.java:284) org.eclipse.jdt.internal.core.search.BasicSearchEngine.searchAllSecondaryTypeNames(BasicSearchEngine.java:1713) org.eclipse.jdt.internal.core.JavaModelManager.secondaryTypesSearching(JavaModelManager.java:4958) org.eclipse.jdt.internal.core.JavaModelManager.secondaryTypes(JavaModelManager.java:4799) org.eclipse.jdt.internal.core.NameLookup.findSecondaryType(NameLookup.java:712) org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:1000) org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:823) org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:781) org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:1074) org.eclipse.jdt.internal.core.JavaProject.findType(JavaProject.java:1691) org.eclipse.jdt.internal.core.JavaProject.findType(JavaProject.java:1786) org.eclipse.jdt.internal.core.JavaProject.findType(JavaProject.java:1684) org.eclipse.pde.api.tools.internal.builder.AbstractProblemDetector.createProblem(AbstractProblemDetector.java:183) org.eclipse.pde.api.tools.internal.builder.AbstractProblemDetector.createProblems(AbstractProblemDetector.java:523) org.eclipse.pde.api.tools.internal.builder.ReferenceAnalyzer.analyze(ReferenceAnalyzer.java:258) org.eclipse.pde.api.tools.internal.builder.BaseApiAnalyzer.checkApiUsage(BaseApiAnalyzer.java:1286) org.eclipse.pde.api.tools.internal.builder.BaseApiAnalyzer.analyzeComponent(BaseApiAnalyzer.java:289) org.eclipse.pde.api.tools.internal.builder.ApiAnalysisBuilder.buildAll(ApiAnalysisBuilder.java:922) org.eclipse.pde.api.tools.internal.builder.ApiAnalysisBuilder.work(ApiAnalysisBuilder.java:422) org.eclipse.pde.api.tools.internal.builder.ApiAnalysisBuilder.build(ApiAnalysisBuilder.java:406) org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:856) org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:232) org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:281) org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:334) org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:337) org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:392) org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:413) org.eclipse.core.internal.resources.Workspace.buildInternal(Workspace.java:516) org.eclipse.core.internal.resources.Workspace.build(Workspace.java:406) org.eclipse.jdt.core.tests.builder.TestingEnvironment.fullBuild(TestingEnvironment.java:552) org.eclipse.jdt.core.tests.builder.BuilderTests.fullBuild(BuilderTests.java:413) org.eclipse.pde.api.tools.builder.tests.usage.UsageTest.deployUsageTest(UsageTest.java:125) org.eclipse.pde.api.tools.builder.tests.usage.FieldUsageTests.x1(FieldUsageTests.java:91) org.eclipse.pde.api.tools.builder.tests.usage.FieldUsageTests.testFieldUsage1F(FieldUsageTests.java:67) java.base@11.0.2/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base@11.0.2/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base@11.0.2/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base@11.0.2/java.lang.reflect.Method.invoke(Method.java:566) junit.framework.TestCase.runTest(TestCase.java:177) org.eclipse.jdt.core.tests.junit.extension.TestCase.runTest(TestCase.java:969) junit.framework.TestCase.runBare(TestCase.java:142) junit.framework.TestResult$1.protect(TestResult.java:122) junit.framework.TestResult.runProtected(TestResult.java:142) junit.framework.TestResult.run(TestResult.java:125) junit.framework.TestCase.run(TestCase.java:130) junit.framework.TestSuite.runTest(TestSuite.java:241) junit.framework.TestSuite.run(TestSuite.java:236) junit.framework.TestSuite.runTest(TestSuite.java:241) junit.framework.TestSuite.run(TestSuite.java:236) junit.framework.TestSuite.runTest(TestSuite.java:241) junit.framework.TestSuite.run(TestSuite.java:236) org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:90) org.junit.runners.Suite.runChild(Suite.java:128) org.junit.runners.Suite.runChild(Suite.java:27) org.junit.runners.ParentRunner$4.run(ParentRunner.java:331) org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329) org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293) org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) org.junit.runners.ParentRunner.run(ParentRunner.java:413) org.junit.runner.JUnitCore.run(JUnitCore.java:137) org.junit.runner.JUnitCore.run(JUnitCore.java:115) org.junit.vintage.engine.execution.RunnerExecutor.execute(RunnerExecutor.java:42) org.junit.vintage.engine.VintageTestEngine.executeAllChildren(VintageTestEngine.java:80) org.junit.vintage.engine.VintageTestEngine.execute(VintageTestEngine.java:72) org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) org.junit.platform.launcher.core.EngineExecutionOrchestrator$$Lambda$342/0x0000000100484440.accept(Unknown Source) org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invokeAllTests(JUnitPlatformProvider.java:150) org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invoke(JUnitPlatformProvider.java:124) java.base@11.0.2/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base@11.0.2/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base@11.0.2/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base@11.0.2/java.lang.reflect.Method.invoke(Method.java:566) org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray2(ReflectionUtils.java:206) org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:161) org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:84) org.eclipse.tycho.surefire.osgibooter.OsgiSurefireBooter.run(OsgiSurefireBooter.java:128) org.eclipse.tycho.surefire.osgibooter.HeadlessTestApplication.start(HeadlessTestApplication.java:23) org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136) org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) java.base@11.0.2/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base@11.0.2/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base@11.0.2/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base@11.0.2/java.lang.reflect.Method.invoke(Method.java:566) app//org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) app//org.eclipse.equinox.launcher.Main.basicRun(Main.java:596) app//org.eclipse.equinox.launcher.Main.run(Main.java:1467) app//org.eclipse.equinox.launcher.Main.main(Main.java:1440) "Reference Handler": RUNNABLE java.base@11.0.2/java.lang.ref.Reference.waitForReferencePendingList(Native Method) java.base@11.0.2/java.lang.ref.Reference.processPendingReferences(Reference.java:241) java.base@11.0.2/java.lang.ref.Reference$ReferenceHandler.run(Reference.java:213) "Finalizer": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:155) java.base@11.0.2/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:176) java.base@11.0.2/java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:170) "Signal Dispatcher": RUNNABLE "Common-Cleaner": TIMED_WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:155) java.base@11.0.2/jdk.internal.ref.CleanerImpl.run(CleanerImpl.java:148) java.base@11.0.2/java.lang.Thread.run(Thread.java:834) java.base@11.0.2/jdk.internal.misc.InnocuousThread.run(InnocuousThread.java:134) "Active Thread: Equinox Container: cd50eac4-d09c-4e0d-b1ec-28f010cb85f4": TIMED_WAITING java.base@11.0.2/jdk.internal.misc.Unsafe.park(Native Method) java.base@11.0.2/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234) java.base@11.0.2/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2123) java.base@11.0.2/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1182) java.base@11.0.2/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899) java.base@11.0.2/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054) java.base@11.0.2/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114) java.base@11.0.2/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) java.base@11.0.2/java.lang.Thread.run(Thread.java:834) "Framework Event Dispatcher: Equinox Container: cd50eac4-d09c-4e0d-b1ec-28f010cb85f4": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.Object.wait(Object.java:328) org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:394) org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:335) "Start Level: Equinox Container: cd50eac4-d09c-4e0d-b1ec-28f010cb85f4": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.Object.wait(Object.java:328) org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:394) org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:335) "Bundle File Closer": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.Object.wait(Object.java:328) org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:394) org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:335) "Refresh Thread: Equinox Container: cd50eac4-d09c-4e0d-b1ec-28f010cb85f4": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.Object.wait(Object.java:328) org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:394) org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:335) "SCR Component Actor": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.Object.wait(Object.java:328) org.apache.felix.scr.impl.ComponentActorThread.run(ComponentActorThread.java:83) java.base@11.0.2/java.lang.Thread.run(Thread.java:834) "EMF Reference Cleaner": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:155) java.base@11.0.2/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:176) org.eclipse.emf.common.util.CommonUtil$1ReferenceClearingQueuePollingThread.run(CommonUtil.java:70) "Worker-JM": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) org.eclipse.core.internal.jobs.InternalWorker.run(InternalWorker.java:61) "Worker-0": TIMED_WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:200) org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:242) org.eclipse.core.internal.jobs.Worker.run(Worker.java:58) "Worker-1": TIMED_WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:200) org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:258) org.eclipse.core.internal.jobs.Worker.run(Worker.java:58) "Java indexing": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.Object.wait(Object.java:328) org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobManager.java:416) java.base@11.0.2/java.lang.Thread.run(Thread.java:834) "Worker-2": TIMED_WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:200) org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:242) org.eclipse.core.internal.jobs.Worker.run(Worker.java:58) "Worker-3": TIMED_WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:200) org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:242) org.eclipse.core.internal.jobs.Worker.run(Worker.java:58) "Worker-4: FreezeMonitor": RUNNABLE java.management@11.0.2/sun.management.ThreadImpl.getThreadInfo1(Native Method) java.management@11.0.2/sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:190) org.eclipse.pde.ui.tests.util.FreezeMonitor$1.run(FreezeMonitor.java:48) org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) "Worker-5": TIMED_WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:200) org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:258) org.eclipse.core.internal.jobs.Worker.run(Worker.java:58) "ForkJoinPool.commonPool-worker-3": WAITING java.base@11.0.2/jdk.internal.misc.Unsafe.park(Native Method) java.base@11.0.2/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194) java.base@11.0.2/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1628) java.base@11.0.2/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177) Build timed out (after 41 minutes). Marking the build as aborted. Terminating xvnc.
@Andrey can you help in this regard respectively can you get sufficient information from the StackTrace to identify the problem?
Created attachment 287910 [details] freeze 1
Created attachment 287911 [details] freeze 2
Looks like a hang in JDT search code, waiting for indexer. Almost same stack as in bug 574647. Important parts: Main thread waiting: java.base@11.0.2/java.lang.Object.wait(Native Method) org.eclipse.jdt.internal.core.search.processing.JobManager.performConcurrentJob(JobManager.java:284) org.eclipse.jdt.internal.core.search.BasicSearchEngine.searchAllSecondaryTypeNames(BasicSearchEngine.java:1713) org.eclipse.jdt.internal.core.JavaModelManager.secondaryTypesSearching(JavaModelManager.java:4958) org.eclipse.jdt.internal.core.JavaModelManager.secondaryTypes(JavaModelManager.java:4799) org.eclipse.jdt.internal.core.NameLookup.findSecondaryType(NameLookup.java:712) org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:1000) org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:823) org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:781) org.eclipse.jdt.internal.core.NameLookup.findType(NameLookup.java:1074) org.eclipse.jdt.internal.core.JavaProject.findType(JavaProject.java:1691) org.eclipse.jdt.internal.core.JavaProject.findType(JavaProject.java:1786) org.eclipse.jdt.internal.core.JavaProject.findType(JavaProject.java:1684) Indexer job waiting too: "Java indexing": WAITING java.base@11.0.2/java.lang.Object.wait(Native Method) java.base@11.0.2/java.lang.Object.wait(Object.java:328) org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobManager.java:416) java.base@11.0.2/java.lang.Thread.run(Thread.java:834) What is interesting, this is random failure. The problem might occur if some (bad written) test randomly disables indexer (org.eclipse.jdt.internal.core.search.processing.JobManager.disable()) and fails to re-enable it again (on some error or fail condition), and the indexer stays disabled (it has a counter) - which causes the test in question (FieldUsageTests) wait forever because it needs indexer working.
(In reply to Andrey Loskutov from comment #4) > > What is interesting, this is random failure. > The problem might occur if some (bad written) test randomly disables indexer > (org.eclipse.jdt.internal.core.search.processing.JobManager.disable()) and > fails to re-enable it again (on some error or fail condition), and the > indexer stays disabled (it has a counter) - which causes the test in > question (FieldUsageTests) wait forever because it needs indexer working. Its indeed interesting. I searched the entire pde.ui and pde.build code base in my workspace and found no calls the mentioned JobManager.disable() method. With the stack-trace and from looking into the code of the JobManager the very root cause seems to be that awaitingJobsCount() always returns a value greater zero. Which could be because the JobManager is not activated or because the List of awaitingJobs never becomes empty. I don't know if the former is realistic? If I didn't oversaw something it looks like elements from awaitingJobs are only removed in moveToNextJob() which is only called in the JobManager's run method. I assume that's the reason that you suspect that the JobManager is disabled? But could there another reason? It could maybe also help to make the JobManager verbose. I'm about to prepare a (temporary) Gerrit for this. Maybe we are 'lucky' and this change immediately hits the freeze.
New Gerrit change created: https://git.eclipse.org/r/c/pde/eclipse.pde.ui/+/190093
Created attachment 287920 [details] Console output with verbose info before hang
(In reply to Andrey Loskutov from comment #7) > Created attachment 287920 [details] > Console output with verbose info before hang Gayan, could you please take a look on the attached indexer output before the hang (and the hang stack that follows), may be you see something obvious? @Hannes: I must confess, I have not much time to investigate deeper, but enabling verbose output is surely helpful.
Created attachment 287921 [details] Console output with verbose info for successfull build
(In reply to Andrey Loskutov from comment #8) > (In reply to Andrey Loskutov from comment #7) > > Created attachment 287920 [details] > > Console output with verbose info before hang > > Gayan, could you please take a look on the attached indexer output before > the hang (and the hang stack that follows), may be you see something obvious? > I also added the console log of the successful build for comparison. > @Hannes: I must confess, I have not much time to investigate deeper, but > enabling verbose output is surely helpful. Understand that. My problem is that I'm not familiar with that part of the code. I can try to dig a bit into it, but it would probably be much more efficient/faster if somebody with more experience in this area would have a look at it.
@Hannes i still couldn’t find the time to look at the traces in detail. But do you see that the infinite wait happen at IndexManager.waitForIndex method ?
(In reply to Gayan Perera from comment #11) > @Hannes i still couldn’t find the time to look at the traces in detail. But > do you see that the infinite wait happen at IndexManager.waitForIndex method > ? I cannot say more that I did not found any occurrence of "waitForIndex" in the logs or stack-traces.
Gerrit change https://git.eclipse.org/r/c/pde/eclipse.pde.ui/+/190093 was merged to [master]. Commit: http://git.eclipse.org/c/pde/eclipse.pde.ui.git/commit/?id=6c08bf82460cc938514b2b04cb19c18b3d326186
The following is interesting Thread[main,5,main] DISABLING background indexing Thread[main,5,main] -> index state updated to: REBUILDING for: file:/home/jenkins/agent/workspace/eclipse.pde.ui-Gerrit/apitools/org.eclipse.pde.api.tools.tests/target/work/data/.metadata/.plugins/org.eclipse.jdt.core/2038840533.index Thread[main,5,main] REQUEST background job - indexing project /usagetests Thread[main,5,main] AWAITING JOBS count: 7 Thread[main,5,main] ENABLING background indexing reflectNestedClassUseDollar=true due to isJRE9Plus Thread[main,5,main] REQUEST background job - indexing /usagetests/src/x/y/z/testF1.java Thread[main,5,main] AWAITING JOBS count: 8 Thread[main,5,main] STARTING concurrent job - searching SecondaryTypeDeclarationPattern: pkg<*>, enclosing<*>, type<*>, exact match, case sensitive, generic full match, fine grain: none Thread[main,5,main] -> selected 2 indexes out of total indexes 2 after qualify filtering - org.eclipse.jdt.internal.core.search.IndexSelector@302d6539 Possible frozen test case "main": TIMED_WAITING Seems like this enabling and disabling of background jobs seems to have a issue of awaiting jobs. Seems like after each execution the awaiting jobs increases.
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. If you have further information on the current state of the bug, please add it. 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.
