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Bug 42923 - [Tasks] 100% CPU, possible bug in org.eclipse.jdt.internal.compiler.parser.Scanner
Summary: [Tasks] 100% CPU, possible bug in org.eclipse.jdt.internal.compiler.parser.Sc...
Status: RESOLVED DUPLICATE of bug 44443
Alias: None
Product: Platform
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 3.0   Edit
Hardware: PC Windows XP
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Michael Van Meekeren CLA
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2003-09-10 19:01 EDT by Cedric Beust CLA
Modified: 2003-10-09 16:29 EDT (History)
2 users (show)

See Also:

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Description Cedric Beust CLA 2003-09-10 19:01:58 EDT 
I am using 3.0 M3 and after some time, my CPU ends up at 100% even though I'm
not doing anything.  A thread dump reveals that the thread below might be the
reason why (I included the full thread dump at the bottom).

Full thread dump Java HotSpot(TM) Client VM (1.4.1_02-ea-b01 mixed mode):

"main" prio=7 tid=0x00036410 nid=0x153c runnable [7e000..7fc40]
        at org.eclipse.jdt.internal.compiler.parser.Scanner.getNextCharAsJavaIde
ntifierPart(Scanner.java:748)
        at org.eclipse.jdt.internal.compiler.parser.Scanner.scanIdentifierOrKeyw
ord(Scanner.java:2267)
        at org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken(Scanner
.java:1374)
        at org.eclipse.jdt.core.JavaConventions.scannedIdentifier(JavaConvention
s.java:131)
        - locked <234C04D8> (a java.lang.Class)
        at org.eclipse.jdt.core.JavaConventions.validateIdentifier(JavaConventio
ns.java:264)
        at org.eclipse.jdt.core.JavaConventions.validateClassFileName(JavaConven
tions.java:225)
        at org.eclipse.jdt.internal.core.Util.isValidClassFileName(Util.java:846
)
        at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManage
r.java:261)
        at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManage
r.java:224)
        at org.eclipse.jdt.core.JavaCore.create(JavaCore.java:958)
        at org.eclipse.jdt.core.JavaCore.create(JavaCore.java:926)
        at org.eclipse.jdt.internal.ui.JavaElementContainmentAdapter.contains(Ja
vaElementContainmentAdapter.java:43)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.isEnclosed(MarkerF
ilter.java:215)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.selectBySelection(
MarkerFilter.java:157)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.select(MarkerFilte
r.java:119)
        at org.eclipse.ui.views.markers.internal.ProblemFilter.select(ProblemFil
ter.java:44)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.filter(MarkerFilte
r.java:103)
        at org.eclipse.ui.views.markers.internal.MarkerRegistry.getElements(Mark
erRegistry.java:58)
        at org.eclipse.ui.views.markers.internal.MarkerRegistry.getItemCount(Mar
kerRegistry.java:254)
        at org.eclipse.ui.views.markers.internal.MarkerView.checkMarkerLimit(Mar
kerView.java:482)
        at org.eclipse.ui.views.markers.internal.MarkerView$4.run(MarkerView.jav
a:450)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.ja
va:102)
        - locked <03571F38> (a org.eclipse.swt.widgets.RunnableLock)
        at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:2165)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1882)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2036)
        at org.eclipse.ui.internal.Workbench.run(Workbench.java:2019)
        at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoa
der.java:858)
        at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at org.eclipse.core.launcher.Main.basicRun(Main.java:295)
        at org.eclipse.core.launcher.Main.run(Main.java:751)
        at org.eclipse.core.launcher.Main.main(Main.java:587)


=====================
Full dump


D:\eclipse-3.0m3\eclipse>java -Xmx512M -cp startup.jar org.eclipse.core.launcher
.Main -update -application org.eclipse.ui.workbench -data d:\eclipse-new-workspa
ce7
Full thread dump Java HotSpot(TM) Client VM (1.4.1_02-ea-b01 mixed mode):

"Thread-15" prio=7 tid=0x280A6C18 nid=0x1454 in Object.wait() [2887f000..2887fd8
c]
        at java.lang.Object.wait(Native Method)
        - waiting on <03570000> (a org.eclipse.ui.internal.Semaphore)
        at org.eclipse.ui.internal.Semaphore.acquire(Semaphore.java:37)
        - locked <03570000> (a org.eclipse.ui.internal.Semaphore)
        at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:4
2)
        at org.eclipse.swt.widgets.Display.syncExec(Display.java:2505)
        at org.eclipse.ui.model.WorkbenchContentProvider.resourceChanged(Workben
chContentProvider.java:198)
        at org.eclipse.core.internal.events.NotificationManager$1.run(Notificati
onManager.java:179)
        at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatfo
rm.java:1016)
        at org.eclipse.core.runtime.Platform.run(Platform.java:420)
        at org.eclipse.core.internal.events.NotificationManager.notify(Notificat
ionManager.java:173)
        at org.eclipse.core.internal.events.NotificationManager.broadcastChanges
(NotificationManager.java:77)
        at org.eclipse.core.internal.resources.Workspace.broadcastChanges(Worksp
ace.java:155)
        at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.
java:866)
        at org.eclipse.core.internal.resources.Marker.setAttribute(Marker.java:2
26)
        at org.eclipse.core.internal.resources.Marker.setAttribute(Marker.java:2
00)
        at net.sourceforge.perforce.core.internal.events.AddDeleteMoveListener.c
reateAdditonMarker(AddDeleteMoveListener.java:321)
        at net.sourceforge.perforce.core.internal.events.AddDeleteMoveListener.c
reateNecessaryMarkers(AddDeleteMoveListener.java:398)
        at net.sourceforge.perforce.core.internal.events.AddDeleteMoveListener.r
esourceStateChanged(AddDeleteMoveListener.java:225)
        at net.sourceforge.perforce.core.PerforceCorePlugin$3.run(PerforceCorePl
ugin.java:442)
        at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatfo
rm.java:1016)
        at org.eclipse.core.runtime.Platform.run(Platform.java:420)
        at net.sourceforge.perforce.core.PerforceCorePlugin.broadcastResourceSta
teChanges(PerforceCorePlugin.java:451)
        at net.sourceforge.perforce.core.PerforceSynchronizer$1.run(PerforceSync
hronizer.java:1015)
        at java.lang.Thread.run(Thread.java:536)

"org.eclipse.jdt.internal.ui.text.JavaReconciler" daemon prio=2 tid=0x26F0E8E8 n
id=0xc88 in Object.wait() [2877f000..2877fd8c]
        at java.lang.Object.wait(Native Method)
        at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread
.run(AbstractReconciler.java:161)
        - locked <08D8D7D0> (a org.eclipse.jface.text.reconciler.DirtyRegionQueu
e)

"org.eclipse.jdt.internal.ui.text.JavaReconciler" daemon prio=2 tid=0x27F819A0 n
id=0x1590 in Object.wait() [27dbf000..27dbfd8c]
        at java.lang.Object.wait(Native Method)
        at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread
.run(AbstractReconciler.java:161)
        - locked <08BDDCE8> (a org.eclipse.jface.text.reconciler.DirtyRegionQueu
e)

"Worker-6" prio=7 tid=0x27255938 nid=0x33c in Object.wait() [27ebf000..27ebfd8c]

        at java.lang.Object.wait(Native Method)
        - waiting on <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:98)
        - locked <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:11
9)
        - locked <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

"Worker-5" prio=7 tid=0x26F69930 nid=0x159c in Object.wait() [2796f000..2796fd8c
]
        at java.lang.Object.wait(Native Method)
        - waiting on <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:98)
        - locked <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:11
9)
        - locked <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

"Worker-4" prio=7 tid=0x2719D100 nid=0x1780 in Object.wait() [278ef000..278efd8c
]
        at java.lang.Object.wait(Native Method)
        - waiting on <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:98)
        - locked <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:11
9)
        - locked <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

"Perforce Decorator" prio=7 tid=0x27255E00 nid=0x172c in Object.wait() [27caf000
..27cafd8c]
        at java.lang.Object.wait(Native Method)
        - waiting on <07028F88> (a net.sourceforge.perforce.ui.PerforceDecorator
)
        at java.lang.Object.wait(Object.java:426)
        at net.sourceforge.perforce.ui.PerforceDecorator.next(PerforceDecorator.
java:260)
        - locked <07028F88> (a net.sourceforge.perforce.ui.PerforceDecorator)
        at net.sourceforge.perforce.ui.PerforceDecorationRunnable.run(PerforceDe
corationRunnable.java:122)
        at java.lang.Thread.run(Thread.java:536)

"Perforce Background Update Monitor" prio=7 tid=0x27368A60 nid=0x1724 waiting on
 condition [27c6f000..27c6fd8c]
        at java.lang.Thread.sleep(Native Method)
        at net.sourceforge.perforce.core.internal.BackgroundUpdateRunnable.run(B
ackgroundUpdateRunnable.java:114)
        at java.lang.Thread.run(Thread.java:536)

"Perforce Connection Monitor" prio=7 tid=0x2728DDA8 nid=0x14b4 waiting on condit
ion [27c2f000..27c2fd8c]
        at java.lang.Thread.sleep(Native Method)
        at net.sourceforge.perforce.core.internal.ConnectionMonitorRunnable.run(
ConnectionMonitorRunnable.java:81)
        at java.lang.Thread.run(Thread.java:536)

"Worker-2" prio=7 tid=0x270CB200 nid=0x1474 in Object.wait() [2792f000..2792fd8c
]
        at java.lang.Object.wait(Native Method)
        - waiting on <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:98)
        - locked <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:11
9)
        - locked <05211368> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

"org.eclipse.jdt.internal.ui.text.JavaReconciler" daemon prio=2 tid=0x26F5BD10 n
id=0x12d0 in Object.wait() [2789f000..2789fd8c]
        at java.lang.Object.wait(Native Method)
        - waiting on <06F864B8> (a org.eclipse.jface.text.reconciler.DirtyRegion
Queue)
        at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread
.run(AbstractReconciler.java:161)
        - locked <06F864B8> (a org.eclipse.jface.text.reconciler.DirtyRegionQueu
e)

"Java indexing" daemon prio=4 tid=0x26E8EED8 nid=0x9a8 in Object.wait() [2781f00
0..2781fd8c]
        at java.lang.Object.wait(Native Method)
        - waiting on <06E054D0> (a org.eclipse.jdt.internal.core.search.indexing
.IndexManager)
        at java.lang.Object.wait(Object.java:426)
        at org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobMan
ager.java:358)
        - locked <06E054D0> (a org.eclipse.jdt.internal.core.search.indexing.Ind
exManager)
        at java.lang.Thread.run(Thread.java:536)

"Signal Dispatcher" daemon prio=10 tid=0x009A7F58 nid=0x1358 waiting on conditio
n [0..0]

"Finalizer" daemon prio=9 tid=0x009A4560 nid=0x964 in Object.wait() [26cbf000..2
6cbfd8c]
        at java.lang.Object.wait(Native Method)
        - waiting on <051D4278> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:111)
        - locked <051D4278> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

"Reference Handler" daemon prio=10 tid=0x009EDC48 nid=0x1740 in Object.wait() [9
5f000..95fd8c]
        at java.lang.Object.wait(Native Method)
        - waiting on <051D42E0> (a java.lang.ref.Reference$Lock)
        at java.lang.Object.wait(Object.java:426)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:113)
        - locked <051D42E0> (a java.lang.ref.Reference$Lock)

"main" prio=7 tid=0x00036410 nid=0x153c runnable [7e000..7fc40]
        at org.eclipse.jdt.internal.compiler.parser.Scanner.getNextCharAsJavaIde
ntifierPart(Scanner.java:748)
        at org.eclipse.jdt.internal.compiler.parser.Scanner.scanIdentifierOrKeyw
ord(Scanner.java:2267)
        at org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken(Scanner
.java:1374)
        at org.eclipse.jdt.core.JavaConventions.scannedIdentifier(JavaConvention
s.java:131)
        - locked <234C04D8> (a java.lang.Class)
        at org.eclipse.jdt.core.JavaConventions.validateIdentifier(JavaConventio
ns.java:264)
        at org.eclipse.jdt.core.JavaConventions.validateClassFileName(JavaConven
tions.java:225)
        at org.eclipse.jdt.internal.core.Util.isValidClassFileName(Util.java:846
)
        at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManage
r.java:261)
        at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManage
r.java:224)
        at org.eclipse.jdt.core.JavaCore.create(JavaCore.java:958)
        at org.eclipse.jdt.core.JavaCore.create(JavaCore.java:926)
        at org.eclipse.jdt.internal.ui.JavaElementContainmentAdapter.contains(Ja
vaElementContainmentAdapter.java:43)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.isEnclosed(MarkerF
ilter.java:215)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.selectBySelection(
MarkerFilter.java:157)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.select(MarkerFilte
r.java:119)
        at org.eclipse.ui.views.markers.internal.ProblemFilter.select(ProblemFil
ter.java:44)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.filter(MarkerFilte
r.java:103)
        at org.eclipse.ui.views.markers.internal.MarkerRegistry.getElements(Mark
erRegistry.java:58)
        at org.eclipse.ui.views.markers.internal.MarkerRegistry.getItemCount(Mar
kerRegistry.java:254)
        at org.eclipse.ui.views.markers.internal.MarkerView.checkMarkerLimit(Mar
kerView.java:482)
        at org.eclipse.ui.views.markers.internal.MarkerView$4.run(MarkerView.jav
a:450)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.ja
va:102)
        - locked <03571F38> (a org.eclipse.swt.widgets.RunnableLock)
        at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:2165)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1882)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2036)
        at org.eclipse.ui.internal.Workbench.run(Workbench.java:2019)
        at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoa
der.java:858)
        at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at org.eclipse.core.launcher.Main.basicRun(Main.java:295)
        at org.eclipse.core.launcher.Main.run(Main.java:751)
        at org.eclipse.core.launcher.Main.main(Main.java:587)

"VM Thread" prio=5 tid=0x009EC9C0 nid=0x1014 runnable

"VM Periodic Task Thread" prio=10 tid=0x009A6C48 nid=0x1770 waiting on condition

"Suspend Checker Thread" prio=10 tid=0x009A7508 nid=0xd28 runnable
Comment 1 Philipe Mulet CLA 2003-09-11 03:38:02 EDT 
This is the background activity triggered by JDT/UI for updating the problem 
decorations.

However, this seems way to expensive.
Comment 2 Philipe Mulet CLA 2003-09-15 07:01:04 EDT 
Moving to JDT/UI. Background actions are triggering CPU usage, even though user 
isn't doing anything. We cannot avoid scanning the file name to ensure it is a 
valid Java identifier (as per our API).
Comment 3 Dirk Baeumer CLA 2003-09-17 05:50:47 EDT 
The only thread that is active in the thread dumps is the main thread. So now 
background activity here. The main thread refilters the markers view.

Cedric, 

when this happens are you still able to click around. How does the filter look 
like that is set to the marker view.
Comment 4 Cedric Beust CLA 2003-09-19 19:07:43 EDT 
It's happening again right now.  My CPU is maxed out.  I can still use the IDE,
though, it's not a freeze.

A thread dump turned up the following stack trace (I just took a second dump and
I got a similar trace).



"main" prio=7 tid=0x00036488 nid=0xef8 runnable [7e000..7fc40]
        at java.lang.Throwable.fillInStackTrace(Native Method)
        at java.lang.Throwable.<init>(Throwable.java:195)
        at java.lang.Exception.<init>(Exception.java:41)
        at java.lang.RuntimeException.<init>(RuntimeException.java:43)
        at java.lang.IndexOutOfBoundsException.<init>(IndexOutOfBoundsException.
java:37)
        at java.lang.ArrayIndexOutOfBoundsException.<init>(ArrayIndexOutOfBounds
Exception.java:46)
        at org.eclipse.jdt.internal.compiler.parser.Scanner.getNextCharAsJavaIde
ntifierPart(Scanner.java:748)
        at org.eclipse.jdt.internal.compiler.parser.Scanner.scanIdentifierOrKeyw
ord(Scanner.java:2267)
        at org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken(Scanner
.java:1374)
        at org.eclipse.jdt.core.JavaConventions.scannedIdentifier(JavaConvention
s.java:131)
        - locked <234D0BB8> (a java.lang.Class)
        at org.eclipse.jdt.core.JavaConventions.validateIdentifier(JavaConventio
ns.java:264)
        at org.eclipse.jdt.core.JavaConventions.validateCompilationUnitName(Java
Conventions.java:183)
        at org.eclipse.jdt.internal.core.Util.isValidCompilationUnitName(Util.ja
va:828)
        at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManage
r.java:259)
        at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManage
r.java:224)
        at org.eclipse.jdt.core.JavaCore.create(JavaCore.java:958)
        at org.eclipse.jdt.core.JavaCore.create(JavaCore.java:926)
        at org.eclipse.jdt.internal.ui.JavaElementContainmentAdapter.contains(Ja
vaElementContainmentAdapter.java:43)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.isEnclosed(MarkerF
ilter.java:215)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.selectBySelection(
MarkerFilter.java:157)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.select(MarkerFilte
r.java:119)
        at org.eclipse.ui.views.markers.internal.ProblemFilter.select(ProblemFil
ter.java:44)
        at org.eclipse.ui.views.markers.internal.MarkerFilter.filter(MarkerFilte
r.java:103)
        at org.eclipse.ui.views.markers.internal.MarkerRegistry.getElements(Mark
erRegistry.java:58)
        at org.eclipse.ui.views.markers.internal.MarkerRegistry.getItemCount(Mar
kerRegistry.java:254)
        at org.eclipse.ui.views.markers.internal.MarkerView.checkMarkerLimit(Mar
kerView.java:482)
        at org.eclipse.ui.views.markers.internal.MarkerView$4.run(MarkerView.jav
a:450)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.ja
va:102)
        - locked <12151C48> (a org.eclipse.swt.widgets.RunnableLock)
        at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:2165)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1882)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2036)
        at org.eclipse.ui.internal.Workbench.run(Workbench.java:2019)
        at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoa
der.java:858)
        at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at org.eclipse.core.launcher.Main.basicRun(Main.java:295)
        at org.eclipse.core.launcher.Main.run(Main.java:751)
        at org.eclipse.core.launcher.Main.main(Main.java:587)
Comment 5 Dirk Baeumer CLA 2003-09-20 18:19:20 EDT 
Philippe, can you please comment on the possibility that the Scanner code 
somehow ends in a endless loop. It is somehow strange that whenever the CPU 
goes up to 100% the code is in the scanner.
Comment 6 Philipe Mulet CLA 2003-09-22 05:33:08 EDT 
This isn't an endless loop, just remember that scanning source is quite CPU 
intensive. The endless activity is in the marker refresh area which seems to be 
creating a lot of elements (and we are validating the element handle by 
scanning the filename).
Comment 7 Dirk Baeumer CLA 2003-09-22 06:19:46 EDT 
Cedric, I already asked that question: how does your filter look like. And how 
many errors/problems do you have in our workspace in total (e.g. without an 
filter applied).
Comment 8 Cedric Beust CLA 2003-09-22 11:31:15 EDT 
Dirk, my filter is displaying 0 of 4037 problems right now.  It is configured to
display only errors on a Working Set (which contains about 200 files).

Do you need any more information?
Comment 9 Dirk Baeumer CLA 2003-09-22 12:23:10 EDT 
Asking Platform for comments. It seems that we have errors in thousands of 
files and the filter algorithm doesn't really scale in this scenario.
Comment 10 Debbie Wilson CLA 2003-10-09 16:29:59 EDT 

*** This bug has been marked as a duplicate of 44443 ***
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