[jbosstools-issues] [JBoss JIRA] (JBIDE-20676) NPE in org.jboss.tools.jst.web.ui.palette.PaletteAdapter.refreshDynamicDrawer()

[Denis Golovin (JIRA)]

Denis Golovin created JBIDE-20676:
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             Summary: NPE in org.jboss.tools.jst.web.ui.palette.PaletteAdapter.refreshDynamicDrawer()
                 Key: JBIDE-20676
                 URL: https://issues.jboss.org/browse/JBIDE-20676
             Project: Tools (JBoss Tools)
          Issue Type: Bug
          Components: common/jst/core
    Affects Versions: 4.3.0.CR1
         Environment: Linux x86_64 SWT_GTK3=1
            Reporter: Denis Golovin


Exception below occurs in case of switching between jsp and html editord oprened for the same html5 file. kitchensink-angularjs example from central is good test project for this issue. {code}java.lang.NullPointerException
	at org.jboss.tools.jst.web.ui.palette.PaletteAdapter.refreshDynamicDrawer(PaletteAdapter.java:130)
	at org.jboss.tools.jst.web.ui.palette.PaletteAdapter.activated(PaletteAdapter.java:101)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.PalettePageImpl$1.partActivated(PalettePageImpl.java:71)
	at org.eclipse.ui.internal.WorkbenchPage$14.run(WorkbenchPage.java:4885)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.WorkbenchPage.firePartActivated(WorkbenchPage.java:4882)
	at org.eclipse.ui.internal.WorkbenchPage.access$19(WorkbenchPage.java:4870)
	at org.eclipse.ui.internal.WorkbenchPage$E4PartListener.partActivated(WorkbenchPage.java:202)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$3.run(PartServiceImpl.java:245)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.firePartActivated(PartServiceImpl.java:242)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:711)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:639)
	at org.eclipse.e4.ui.internal.workbench.swt.AbstractPartRenderer.activate(AbstractPartRenderer.java:106)
	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer$1.handleEvent(ContributedPartRenderer.java:63)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1353)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1338)
	at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1756)
	at org.eclipse.swt.widgets.Control.gtk_button_press_event(Control.java:3073)
	at org.eclipse.swt.widgets.Control.gtk_button_press_event(Control.java:3009)
	at org.eclipse.swt.widgets.Composite.gtk_button_press_event(Composite.java:731)
	at org.eclipse.swt.widgets.Tree.gtk_button_press_event(Tree.java:1839)
	at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1959)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:5590)
	at org.eclipse.swt.widgets.Tree.windowProc(Tree.java:3612)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:4717)
	at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method)
	at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:9279)
	at org.eclipse.swt.widgets.Display.eventProc(Display.java:1225)
	at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
	at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2425)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3428)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	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:139)
	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:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488){code}



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