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

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 Affects Versions: 4.3.0.CR1 Environment: Linux x86_64 SWT_GTK3=1 Reporter: Denis Golovin Assignee: Jeff MAURY Priority: Minor Fix For: 4.4.3.AM1 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}