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Course of actions leading to bug. Actions executed on a CVS file system. 1) Delete directory tree -> nothing seems to happen (status line is empty) 2) Umount CVS files system containing the directory tree involved in the previous step -> nothing seems to happen (status line is empty) 3) Try to delete again -> Error.
This is caused by the fact that the first deleting process didn't finish and the second one tried to delete the same objects. Root of this is in asynchronous delete. First question is to show user that some threads are running - ccing ui because of some discusion about this recently Assigning to Yarda to suggest some advanced solution ;-)
Exchange of bugs with Vita.
Is this bug reliably reproducible? Where is the stack trace?
I think this error is not reliably reproducible. *********** Exception occurred ************ Fri Aug 31 10:22:45 CEST 2001: java.util.ConcurrentModificationException: Posted StackTrace Annotation: Exception occurred in Request Processor org.openide.util.RequestProcessor$Holder: Posted StackTrace(task org.netbeans.core.ModuleAction s$1@25f543 [-7090, 1, -1]) at org.openide.util.RequestProcessor$Task.createHolder(RequestProcessor.java:322) at org.openide.util.RequestProcessor.post(RequestProcessor.java:100) at org.openide.util.RequestProcessor.post(RequestProcessor.java:73) at org.netbeans.core.ModuleActions.invokeAction(ModuleActions.java:89) at org.openide.awt.Actions$ButtonBridge.actionPerformed(Actions.java:351) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1450) at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1 504) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:378) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:250) at javax.swing.AbstractButton.doClick(AbstractButton.java:279) at javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(BasicMenuItem UI.java:886) at java.awt.Component.processMouseEvent(Component.java:3715) at java.awt.Component.processEvent(Component.java:3544) at java.awt.Container.processEvent(Container.java:1164) at java.awt.Component.dispatchEventImpl(Component.java:2593) at java.awt.Container.dispatchEventImpl(Container.java:1213) at java.awt.Component.dispatchEvent(Component.java:2497) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2451) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2216) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2125) at java.awt.Container.dispatchEventImpl(Container.java:1200) at java.awt.Window.dispatchEventImpl(Window.java:914) at java.awt.Component.dispatchEvent(Component.java:2497) at java.awt.EventQueue.dispatchEvent(EventQueue.java:339) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:131) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:98) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [catch] at java.awt.EventDispatchThread.run(EventDispatchThread.java:85)
Target milestone -> 3.3.1.
Could you, please, attach full bunch of annotated exceptions, the first one (you have attached) shows the stack trace of RequestProcessor caller, but doesn't show the real place when CCME occured.
Fri Aug 31 10:22:45 CEST 2001: java.util.ConcurrentModificationException: null java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.next(HashMap.java:736) at org.netbeans.modules.vcscore.cache.CacheDir.writeToDiskRecursively(CacheDir.java:374) at org.netbeans.modules.vcscore.cache.CacheDir.writeToDiskRecursively(CacheDir.java:375) at org.netbeans.modules.vcscore.cache.CacheDir.writeToDiskRecursively(CacheDir.java:375) at org.netbeans.modules.vcscore.cache.CacheDir.writeToDiskRecursively(CacheDir.java:375) at org.netbeans.modules.cvsclient.caching.CvsFsCache.saveToDiskFromNode(CvsFsCache.java:309) at org.netbeans.modules.cvsclient.JavaCvsFileSystem.removeNotify(JavaCvsFileSystem.java:1188) at org.openide.filesystems.Repository.removeFileSystem(Repository.java:200) at org.netbeans.core.RootFolderNode$1.unmount(RootFolderNode.java:241) at org.netbeans.core.actions.UnmountFSAction.performAction(UnmountFSAction.java:75) at org.openide.util.actions.NodeAction.performAction(NodeAction.java:92) at org.openide.util.actions.NodeAction.actionPerformed(NodeAction.java:83) at org.netbeans.core.ModuleActions$1.run(ModuleActions.java:76) at org.openide.util.Task.run(Task.java:124) [catch] at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:626) [org.openide.loaders.XMLDataObject[at/siemens/csi/util/servlets/server.xml]] *********** Exception occurred ************ Fri Aug 31 10:24:00 CEST 2001: java.io.IOException: Cannot find: nbfs:org.netbeans.modules.cvsclient.JavaCvsFileSystem[XQCQDsrc]/at/siemens/csi/util/servlets/server.xml java.io.IOException: Cannot find: nbfs:org.netbeans.modules.cvsclient.JavaCvsFileSystem[XQCQDsrc]/at/siemens/csi/util/servlets/server.xml at org.openide.execution.NbfsURLConnection.connect(NbfsURLConnection.java:101) at org.openide.execution.NbfsURLConnection.getInputStream(NbfsURLConnection.java:112) at java.net.URL.openStream(URL.java:798) at org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultReaderFactory.java:149) at org.apache.xerces.readers.DefaultEntityHandler.startReadingFromDocument(DefaultEntityHandler.java:491) at org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:309) at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:951) [catch] at org.openide.loaders.XMLDataObject$InfoParser.parseHeader(XMLDataObject.java:1248) at org.openide.loaders.XMLDataObject$InfoParser.run(XMLDataObject.java:1164) at org.openide.util.Task.run(Task.java:124) at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:626) [org.openide.loaders.XMLDataObject[at/siemens/csi/util/servlets/web.xml]] *********** Exception occurred ************ Fri Aug 31 10:24:00 CEST 2001: java.io.IOException: Cannot find: nbfs:org.netbeans.modules.cvsclient.JavaCvsFileSystem[XQCQDsrc]/at/siemens/csi/util/servlets/web.xml java.io.IOException: Cannot find: nbfs:org.netbeans.modules.cvsclient.JavaCvsFileSystem[XQCQDsrc]/at/siemens/csi/util/servlets/web.xml at org.openide.execution.NbfsURLConnection.connect(NbfsURLConnection.java:101) at org.openide.execution.NbfsURLConnection.getInputStream(NbfsURLConnection.java:112) at java.net.URL.openStream(URL.java:798) at org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultReaderFactory.java:149) at org.apache.xerces.readers.DefaultEntityHandler.startReadingFromDocument(DefaultEntityHandler.java:491) at org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:309) at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:951) [catch] at org.openide.loaders.XMLDataObject$InfoParser.parseHeader(XMLDataObject.java:1248) at org.openide.loaders.XMLDataObject$InfoParser.run(XMLDataObject.java:1164) at org.openide.util.Task.run(Task.java:124) at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:626) [org.openide.loaders.XMLDataObject[at/siemens/csi/util/servlets/server.xml]] *********** Exception occurred ************ Fri Aug 31 10:24:16 CEST 2001: java.io.IOException: Cannot find: nbfs:org.netbeans.modules.cvsclient.JavaCvsFileSystem[XQCQDsrc]/at/siemens/csi/util/servlets/server.xml java.io.IOException: Cannot find: nbfs:org.netbeans.modules.cvsclient.JavaCvsFileSystem[XQCQDsrc]/at/siemens/csi/util/servlets/server.xml at org.openide.execution.NbfsURLConnection.connect(NbfsURLConnection.java:101) at org.openide.execution.NbfsURLConnection.getInputStream(NbfsURLConnection.java:112) at java.net.URL.openStream(URL.java:798) at org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultReaderFactory.java:149) at org.apache.xerces.readers.DefaultEntityHandler.startReadingFromDocument(DefaultEntityHandler.java:491) at org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:309) at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:951) [catch] at org.openide.loaders.XMLDataObject$InfoParser.parseHeader(XMLDataObject.java:1248) at org.openide.loaders.XMLDataObject$InfoParser.run(XMLDataObject.java:1164) at org.openide.util.Task.run(Task.java:124) at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:626) AND ANOTHER SIMIMILAR EXCEPTION: *********** Exception occurred ************ Thu Oct 18 14:10:06 CEST 2001: java.util.ConcurrentModificationException: null Annotation: Type= 3, name = org.netbeans.modules.cvsclient.JavaCvsFileSystem[D:\data\home\work\java\nivella\src] java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.next(HashMap.java:736) at org.netbeans.modules.cvsclient.caching.JavaCvsCache.writeAllToDisk(JavaCvsCache.java:179) at org.netbeans.modules.cvsclient.caching.CvsFsCache.saveToDisk(CvsFsCache.java:297) at org.netbeans.modules.cvsclient.JavaCvsFileSystem.writeObject(JavaCvsFileSystem.java:1039) at java.lang.reflect.Method.invoke(Native Method) at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1864) at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1210) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366) at org.netbeans.modules.projects.content.XMLSupport.serializeValue(XMLSupport.java:149) at org.netbeans.modules.projects.content.XMLSupport.encodeValue(XMLSupport.java:165) [catch] at org.netbeans.modules.projects.content.XMLProjectContent$XMLDiffSet.addedRawItem(XMLProjectContent.java:458) at org.netbeans.modules.projects.content.XMLSupport.saveDiffSet(XMLSupport.java:271) at org.netbeans.modules.projects.content.XMLProjectContent.saveDiffSet(XMLProjectContent.java:285) at org.netbeans.modules.projects.content.XMLProjectContent.storeRepository(XMLProjectContent.java:365) at org.netbeans.modules.projects.PSupport.projectSave(PSupport.java:329) at org.netbeans.modules.projects.PSupport$1.run(PSupport.java:788) at org.openide.util.Task.run(Task.java:124) at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:626) [IDE-Exec] Executing: 0 .= c:\jdk1.3.1\jre\..\bin\javac 1 .= -g 2 .= -d 3 .= D:\data\home\work\java\nivella\classes 4 .= -classpath 5 .= d:\data\netbeans\system;D:\java\netbeans\system;D:\java\netbeans\beans\TimerBean.jar;D:\data\home\work\java\nivella\src;D:\data\home\work\java\nivella\classes;D:\java\openorb\lib\openorb-1.2.0.jar;D:\java\cryptix\cryptix32.jar;D:\java\netbeans\modules\ext\AbsoluteLayout.jar;
Sorry guys, but I don't see how is the exception fired from JavaCvsFileSystem related to openide. Could javacvs look at it, please.
This wrong behaviour should be fixed for some time already. The problem occured when 2 different threads wanted to save the cvs status cache simultenously. This has been prevented by synchronization. Neither the JavaCvsFilesystem.removeNotify() nor the JavaCvsFileSystem.writeObject() methods do include the cache saving mechanism now. I consider it fixed, please verify in latest builds.
*** Issue 18247 has been marked as a duplicate of this issue. ***
I consider it fixed however if you Peter encounter the bug in latest builds of NetBeans 3.3 don't hesitate to reopen this with further de- tails how to reproduce. Thanks.
Resolved for 3.4.x or earlier, no new info since then -> closing.