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Bug 216502

Summary:	java.lang.Exception: Scan canceled.
Product:	editor	Reporter:	Exceptions Reporter <exceptions_reporter>
Component:	Parsing & Indexing	Assignee:	Tomas Zezula <tzezula>
Status:	RESOLVED INVALID
Severity:	normal	CC:	jpbarbaud, jskrivanek, maghiel, NetBeta, sreder, sree2020
Priority:	P1
Version:	7.2
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	189573
Attachments:	stacktrace stacktrace

Description Exceptions Reporter 2012-08-08 02:28:18 UTC

This bug was originally marked as duplicate of bug 214848, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.

Build: NetBeans IDE 7.2 (Build 201207171143)
VM: Java HotSpot(TM) Client VM, 17.0-b17, Java(TM) SE Runtime Environment, 1.6.0_21-b07
OS: Windows 7

User Comments:
jskrivanek: Just need to revert changes in some file.

GUEST: I changed a pom.xml manually. After this netbeans will start "scanning projects" and get stuck in this process.
Most actions ( e.g. refactoring ) are unavailable and I can't kill the process.

GUEST: Project Scanning taking a long time and making rest of IDE unusable. "Scanning Projects" task takes at least 20 minutes and stops most other functions in the IDE making the IDE unusable for the first 20 minutes when first opening up.

GUEST: n

Comment 1 Exceptions Reporter 2012-08-08 02:28:20 UTC

Created attachment 122844 [details]
stacktrace

Comment 2 maghiel 2012-11-07 01:41:10 UTC

Created attachment 127262 [details]
stacktrace

Comment 3 Exceptions Reporter 2013-01-03 17:08:19 UTC

This bug already has 50 duplicates 
see http://statistics.netbeans.org/exceptions/detail.do?id=189573

Comment 4 Tomas Zezula 2013-01-03 18:07:43 UTC

The scan was triggered by external change in a root on classpath,
the watcher.Watcher notifies the RepositoryUpdater.fileChangedImpl that files were changed -> legal scan.

at java.lang.Thread.getStackTrace(Thread.java:1567)
        at org.netbeans.modules.parsing.impl.indexing.LogContext.create(LogContext.java:74)
        at org.netbeans.modules.parsing.impl.indexing.LogContext.create(LogContext.java:67)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.fileChangedImpl(RepositoryUpdater.java:705)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.access$5800(RepositoryUpdater.java:149)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$FCL.fileChanged(RepositoryUpdater.java:5077)
        at org.openide.filesystems.DeepListener.fileChanged(DeepListener.java:171)
        at org.openide.filesystems.DeepListener.fileChanged(DeepListener.java:164)
        at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectKeeper.fileChanged(FileObjectKeeper.java:284)
        at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:145)
        at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:128)
        at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:105)
        at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:1165)
        at org.openide.filesystems.FileSystem$EventDispatcher.run(FileSystem.java:956)
        at org.openide.filesystems.EventControl.dispatchEvent(EventControl.java:84)
        at org.openide.filesystems.FileSystem.dispatchEvent(FileSystem.java:601)
        at org.openide.filesystems.FileObject.dispatchEvent(FileObject.java:548)
        at org.openide.filesystems.FileObject.fireFileChangedEvent(FileObject.java:516)
        at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.fireFileChangedEvent(BaseFileObj.java:660)
        at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectKeeper.init(FileObjectKeeper.java:135)
        at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:544)
        at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:801)
        at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:550)
        at org.openide.filesystems.FileObject.refresh(FileObject.java:1078)
        at org.netbeans.modules.masterfs.watcher.Watcher$1.run(Watcher.java:378)