[jbosstools-issues] [JBoss JIRA] (JBIDE-19833) NPE after updating JVM Monitor preferences

Martin Malina (JIRA) issues at jboss.org
Tue Jun 9 07:05:02 EDT 2015 

     [ https://issues.jboss.org/browse/JBIDE-19833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Malina closed JBIDE-19833.
---------------------------------


Verified in JBDS 9.0.0.Beta1 B34

> NPE after updating JVM Monitor preferences
> ------------------------------------------
>
>                 Key: JBIDE-19833
>                 URL: https://issues.jboss.org/browse/JBIDE-19833
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: jmx
>    Affects Versions: 4.3.0.Alpha2
>            Reporter: Martin Malina
>            Assignee: Rob Stryker
>             Fix For: 4.3.0.Beta1
>
>
> JBIDE-19530 improved validation of number fields in JVM Monitor preference window, but now I get a NPE when I apply changes. 
> {code}
> java.lang.NullPointerException
> 	at org.jboss.tools.jmx.jvmmonitor.internal.ui.JavaMonitorPreferencePage.applyChanges(JavaMonitorPreferencePage.java:161)
> 	at org.jboss.tools.jmx.jvmmonitor.internal.ui.JavaMonitorPreferencePage.performOkMonitor(JavaMonitorPreferencePage.java:150)
> 	at org.jboss.tools.jmx.jvmmonitor.internal.ui.JavaMonitorPreferencePage.performOk(JavaMonitorPreferencePage.java:137)
> 	at org.eclipse.jface.preference.PreferenceDialog$12.run(PreferenceDialog.java:928)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
> 	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
> 	at org.eclipse.jface.preference.PreferenceDialog.okPressed(PreferenceDialog.java:912)
> 	at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.okPressed(FilteredPreferenceDialog.java:410)
> 	at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.okPressed(WorkbenchPreferenceDialog.java:168)
> 	at org.eclipse.jface.preference.PreferenceDialog.buttonPressed(PreferenceDialog.java:231)
> 	at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:619)
> 	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4203)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1475)
> 	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1279)
> 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4045)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3672)
> 	at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
> 	at org.eclipse.jface.window.Window.open(Window.java:803)
> 	at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:211)
> 	at org.eclipse.ui.internal.handlers.ShowPreferencePageHandler.execute(ShowPreferencePageHandler.java:59)
> 	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:295)
> 	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
> 	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:247)
> 	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:229)
> 	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
> 	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
> 	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:499)
> 	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
> 	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
> 	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:196)
> 	at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.runCommand(CocoaUIHandler.java:715)
> 	at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.access$6(CocoaUIHandler.java:703)
> 	at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler$8.widgetSelected(CocoaUIHandler.java:568)
> 	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4203)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1475)
> 	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1279)
> 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4045)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3672)
> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1112)
> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:993)
> 	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
> 	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
> 	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
> 	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
> 	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138)
> 	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
> 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
> 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
> 	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
> 	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
> {code}
> When I try again, I even get some Unhandled event loop exception which is actually a NPE also:
> {code}
> java.lang.NullPointerException
> 	at org.jboss.tools.jmx.jvmmonitor.internal.ui.JavaMonitorPreferencePage.applyChanges(JavaMonitorPreferencePage.java:161)
> 	at org.jboss.tools.jmx.jvmmonitor.internal.ui.JavaMonitorPreferencePage.performOkMonitor(JavaMonitorPreferencePage.java:150)
> 	at org.jboss.tools.jmx.jvmmonitor.internal.ui.JavaMonitorPreferencePage.performOk(JavaMonitorPreferencePage.java:137)
> 	at org.eclipse.jface.preference.PreferencePage.performApply(PreferencePage.java:464)
> 	at org.eclipse.jface.preference.PreferencePage$2.widgetSelected(PreferencePage.java:294)
> 	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4203)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1475)
> 	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1279)
> 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4045)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3672)
> 	at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
> 	at org.eclipse.jface.window.Window.open(Window.java:803)
> 	at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:211)
> 	at org.eclipse.ui.internal.handlers.ShowPreferencePageHandler.execute(ShowPreferencePageHandler.java:59)
> 	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:295)
> 	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
> 	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:247)
> 	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:229)
> 	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
> 	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
> 	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:499)
> 	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
> 	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
> 	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:196)
> 	at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.runCommand(CocoaUIHandler.java:715)
> 	at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.access$6(CocoaUIHandler.java:703)
> 	at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler$8.widgetSelected(CocoaUIHandler.java:568)
> 	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4203)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1475)
> 	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1279)
> 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4045)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3672)
> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1112)
> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:993)
> 	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
> 	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
> 	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
> 	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
> 	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138)
> 	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
> 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
> 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
> 	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
> 	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
> {code}
> I tried both JBoss Tools 4.3.0.Alpha2 and latest nightly of JBDS (jboss-devstudio-9.0.0.Beta1-v20150519-1626-B3243-installer-standalone.jar). Both on OS X.



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