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During the following, the NetBeans AWT event queue locked up (gray screen with no refresh) for a few minutes. It eventually came back, but there some step is blocking the event queue for a long time. 1.) Start NetBeans 2.) Open project 3.) NetBeans starts to scan classpath and the included directories. (I have one large directory containing map data in my classpath that NetBeans insists on scanning every time I start it and I can't stop it. I've written a bug on that one.) 4.) Clone a file and start manually refactoring a class (converting from a JFrame to a JApplet) 5.) Before all syntax errors were fixed, I reformatted the code 6.) The IDE locked up for a few minutes Here is the stack trace I got from jconsole near the end of the lockup: Name: AWT-EventQueue-1 State: WAITING on java.util.concurrent.locks.ReentrantLock$FairSync@127a12c owned by: Java Source Worker Thread Total blocked: 1,041 Total waited: 6,748 Stack trace: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:747) java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:778) java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1114) java.util.concurrent.locks.ReentrantLock$FairSync.lock(ReentrantLock.java:201) java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:262) org.netbeans.api.java.source.JavaSource$JavaSourceAccessorImpl.lockJavaCompiler(JavaSource.java:2132) org.netbeans.modules.java.source.save.Reformatter$Lock.lock(Reformatter.java:306) org.netbeans.modules.editor.indent.TaskHandler$MimeItem.lock(TaskHandler.java:497) org.netbeans.modules.editor.indent.TaskHandler.lock(TaskHandler.java:232) org.netbeans.modules.editor.indent.IndentImpl.reformatLock(IndentImpl.java:159) - locked org.netbeans.modules.editor.indent.IndentImpl@ca6c00 org.netbeans.modules.editor.indent.FormatterImpl.reformatLock(FormatterImpl.java:93) org.netbeans.editor.ActionFactory$FormatAction.actionPerformed(ActionFactory.java:1526) org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:291) javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) javax.swing.AbstractButton.doClick(AbstractButton.java:357) javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1220) javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1261) java.awt.Component.processMouseEvent(Component.java:6041) javax.swing.JComponent.processMouseEvent(JComponent.java:3265) java.awt.Component.processEvent(Component.java:5806) java.awt.Container.processEvent(Container.java:2058) java.awt.Component.dispatchEventImpl(Component.java:4413) java.awt.Container.dispatchEventImpl(Container.java:2116) java.awt.Component.dispatchEvent(Component.java:4243) java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322) java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986) java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916) java.awt.Container.dispatchEventImpl(Container.java:2102) java.awt.Window.dispatchEventImpl(Window.java:2440) java.awt.Component.dispatchEvent(Component.java:4243) java.awt.EventQueue.dispatchEvent(EventQueue.java:599) org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104) java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Here is another stack trace of the AWT Event Queue with the EDT being blocked. (no repainting): Name: AWT-EventQueue-1 State: WAITING on java.util.concurrent.locks.ReentrantLock$FairSync@b1de2d owned by: Default RequestProcessor Total blocked: 326 Total waited: 1,585 Stack trace: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:747) java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:778) java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1114) java.util.concurrent.locks.ReentrantLock$FairSync.lock(ReentrantLock.java:201) java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:262) org.netbeans.napi.gsfret.source.Source$JavaSourceAccessorImpl.lockParser(Source.java:1707) org.netbeans.modules.gsf.GsfReformatTask$Lock.lock(GsfReformatTask.java:111) org.netbeans.modules.editor.indent.TaskHandler$MimeItem.lock(TaskHandler.java:497) org.netbeans.modules.editor.indent.TaskHandler.lock(TaskHandler.java:232) org.netbeans.modules.editor.indent.IndentImpl.reformatLock(IndentImpl.java:159) - locked org.netbeans.modules.editor.indent.IndentImpl@17daac3 org.netbeans.modules.editor.indent.api.Reformat.lock(Reformat.java:111) org.netbeans.modules.web.core.syntax.JSPKit$JspDefaultKeyTypedAction.reformat(JSPKit.java:548) org.netbeans.modules.web.core.syntax.JSPKit$JspDefaultKeyTypedAction.handleTagClosingSymbol(JSPKit.java:535) org.netbeans.modules.web.core.syntax.JSPKit$JspDefaultKeyTypedAction.insertString(JSPKit.java:478) org.netbeans.editor.BaseKit$DefaultKeyTypedAction.actionPerformed(BaseKit.java:1108) org.netbeans.editor.ext.ExtKit$ExtDefaultKeyTypedAction.actionPerformed(ExtKit.java:1015) org.netbeans.modules.web.core.syntax.JSPKit$JspDefaultKeyTypedAction.actionPerformed(JSPKit.java:449) org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:291) com.raelity.jvi.swing.OpsBase.xact(OpsBase.java:50) org.netbeans.modules.jvi.NbOps.xop(NbOps.java:45) com.raelity.jvi.swing.OpsBase.xop(OpsBase.java:60) com.raelity.jvi.swing.TextView.insertTypedChar(TextView.java:368) com.raelity.jvi.swing.TextView.insertChar(TextView.java:354) com.raelity.jvi.Misc.ins_char(Misc.java:417) com.raelity.jvi.Edit.insertchar(Edit.java:840) com.raelity.jvi.Edit.insert_special(Edit.java:825) com.raelity.jvi.Edit.edit(Edit.java:494) com.raelity.jvi.Normal.processInputChar(Normal.java:137) com.raelity.jvi.GetChar.gotc(GetChar.java:85) com.raelity.jvi.ViManager.keyStroke(ViManager.java:639) com.raelity.jvi.swing.DefaultViFactory$EnqueCharAction.actionPerformed(DefaultViFactory.java:571) javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1636) javax.swing.JComponent.processKeyBinding(JComponent.java:2849) javax.swing.JComponent.processKeyBindings(JComponent.java:2884) javax.swing.JComponent.processKeyEvent(JComponent.java:2812) java.awt.Component.processEvent(Component.java:5818) java.awt.Container.processEvent(Container.java:2058) java.awt.Component.dispatchEventImpl(Component.java:4413) java.awt.Container.dispatchEventImpl(Container.java:2116) java.awt.Component.dispatchEvent(Component.java:4243) java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1848) java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:697) java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:962) java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:834) java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:661) java.awt.Component.dispatchEventImpl(Component.java:4285) java.awt.Container.dispatchEventImpl(Container.java:2116) java.awt.Window.dispatchEventImpl(Window.java:2440) java.awt.Component.dispatchEvent(Component.java:4243) java.awt.EventQueue.dispatchEvent(EventQueue.java:599) org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104) java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Reassigning to "editor".
Dusane, please take a look at it. Thanks.
Fixed. changeset c6da592d35ec in main details: http://hg.netbeans.org/main?cmd=changeset;node=c6da592d35ec
Integrated into 'main-golden', available in build *200807310201* on http://bits.netbeans.org/dev/nightly/ Changeset: http://hg.netbeans.org/main/rev/c6da592d35ec User: Dusan Balek <dbalek@netbeans.org> Log: Issue #140780: [65cat] NetBeans locks up for minutes during code refactoring and reformatting - fixed.
*** Issue 136596 has been marked as a duplicate of this issue. ***
*** Issue 141718 has been marked as a duplicate of this issue. ***