Hello everybody!
Currently, I'm trying to reuse a view from one WebDynpro component in another WebDynpro Component (same DC) using a separate window and an InterfaceView. Whenever I want to create a plug in the new window (by clicking the "+" icon in the window's properties tab unter "Plugs"), I get an NWDS runtime error "java.lang.NullPointerException: while trying to invoke the Method com.sap.die.metamodel.webdynpro.component.Controller.Controller.getContext() of a null object loaded from field com.sap.die.webdynpro.controllereditor.eventhandlers.EventHandlerSubObjectData.mController of an object loaded from local variable 'this'" in the moment I click on the "Plugs" tab.
Stack Trace is
java.lang.NullPointerException: while trying to invoke the method com.sap.ide.metamodel.webdynpro.component.controller.Controller.getEventHandlers() of a null object loaded from field com.sap.ide.webdynpro.controllereditor.eventhandlers.EventHandlerSubObjectData.mController of an object loaded from local variable 'this'
at com.sap.ide.webdynpro.controllereditor.eventhandlers.EventHandlerSubObjectData.getEventHandlerNames(EventHandlerSubObjectData.java:60)
at com.sap.ide.webdynpro.ui.tabbedproperties.subsections.controller.ControllerPlugsSubSection.populateEventHandlers(ControllerPlugsSubSection.java:998)
at com.sap.ide.webdynpro.ui.tabbedproperties.subsections.controller.ControllerPlugsSubSection.initTreeViewer(ControllerPlugsSubSection.java:242)
at com.sap.ide.webdynpro.ui.tabbedproperties.subsections.controller.ControllerPlugsSubSection.updateData(ControllerPlugsSubSection.java:221)
at com.sap.ide.webdynpro.ui.tabbedproperties.sections.ControllerPlugsSection.initPropertySectionData(ControllerPlugsSection.java:38)
at com.sap.ide.webdynpro.ui.tabbedproperties.sections.AbstractWDPropertySection.setInput(AbstractWDPropertySection.java:73)
at org.eclipse.ui.views.properties.tabbed.TabContents$5.run(TabContents.java:181)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.runtime.Platform.run(Platform.java:888)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.ui.views.properties.tabbed.TabContents.setInput(TabContents.java:184)
at org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage$SelectionChangedListener.selectionChanged(TabbedPropertySheetPage.java:212)
at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:162)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.runtime.Platform.run(Platform.java:888)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2132)
at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1160)
at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1190)
at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:228)
at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:222)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:389)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1027)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1012)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:770)
at org.eclipse.ui.internal.views.properties.tabbed.view.TabbedPropertyList.select(TabbedPropertyList.java:664)
at org.eclipse.ui.internal.views.properties.tabbed.view.TabbedPropertyList$2.mouseUp(TabbedPropertyList.java:156)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:207)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
Since I was using NWDS 7.3 EHP 1 SP08 PAT0000, I tried switching to the newest version that corresponds with our web AS/portal version (NWDS 7.3 EHP 1 SP16 PAT0008). In that version, there are no properties for a web dynpro window at all!
So how can I manage to create a plug in a window that can be linked to the Interface View the window is embedded in and to the view that is embedded into the window ?