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in netbeans 6.0 beta 2, in the source code, sometimes, right mouse click becomes responseless. And once it get into this state, restarting the netbeans does not solve this problem.
Can you see this behavior in other java applications?
No, other java apps run well. Because of this issue in netbeans 6 beta2, i use netbeans 5.5.1. In my computer jdk 1.5.0.13 is installed.
Which OS do you use? Are there any exceptions in the log?
Created attachment 53549 [details] messages.log for nullpointer exception
windows xp, service pack2 jdk1.5.0_13 Errors are as below: A java.lang.NullPointerException exception has occurred. Please report this at http://www.netbeans.org/community/issues.html, including a copy of your messages.log file as an attachment. The messages.log file is located in your C:\Documents and Settings\Erol Hira\.netbeans\6.0beta2\var\log folder. ------------------------------------------------------------------------------ show details : java.lang.NullPointerException at org.netbeans.modules.jmx.JavaModelHelper.isDynamicMBean(JavaModelHelper.java:2735) at org.netbeans.modules.jmx.JavaModelHelper.testMBeanCompliance(JavaModelHelper.java:2742) at org.netbeans.modules.jmx.actions.AddNotifAction.enable(AddNotifAction.java:90) at org.openide.util.actions.NodeAction.isEnabled(NodeAction.java:202) at org.netbeans.modules.editor.NbEditorKit$LayerSubFolderMenu.addAction(NbEditorKit.java:854) at org.netbeans.modules.editor.NbEditorKit$LayerSubFolderMenu.<init>(NbEditorKit.java:776) at org.netbeans.modules.editor.NbEditorKit$LayerSubFolderMenu.<init>(NbEditorKit.java:755) at org.netbeans.modules.editor.NbEditorKit$NbBuildPopupMenuAction.buildPopupMenu(NbEditorKit.java:327) at org.netbeans.editor.ext.ExtKit$BuildPopupMenuAction.actionPerformed(ExtKit.java:264) at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:288) at org.netbeans.editor.ext.ExtEditorUI.showPopupMenu(ExtEditorUI.java:167) at org.netbeans.editor.ext.ExtCaret.showPopup(ExtCaret.java:383) at org.netbeans.editor.ext.ExtCaret.mouseReleased(ExtCaret.java:390) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:232) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231) at java.awt.Component.processMouseEvent(Component.java:5517) at javax.swing.JComponent.processMouseEvent(JComponent.java:3135) at java.awt.Component.processEvent(Component.java:5282) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3984) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3819) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1791) at java.awt.Component.dispatchEvent(Component.java:3819) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
the exception comes from JMX module -> reassigning As a temporal workaround you can disable JMX module in Tools->Plugins dialog
OK. NPE that occurs because we were not able to introspect for the right interface