Bug 336139 NPE thrown when trying to render a trim with unidentified elements
java.lang.NullPointerException at org.eclipse.e4.ui.workbench.renderers.swt.TrimBarLayout.isStatusLine(TrimBarLayout.java:245) at org.eclipse.e4.ui.workbench.renderers.swt.TrimBarLayout.computeSize(TrimBarLayout.java:146) at org.eclipse.e4.ui.workbench.renderers.swt.TrimBarLayout.access$0(TrimBarLayout.java:142) at org.eclipse.e4.ui.workbench.renderers.swt.TrimBarLayout$TrimLine.addControl(TrimBarLayout.java:36) at org.eclipse.e4.ui.workbench.renderers.swt.TrimBarLayout.computeSize(TrimBarLayout.java:104) at org.eclipse.swt.widgets.Composite.computeSize(Composite.java:233) at org.eclipse.e4.ui.workbench.renderers.swt.TrimmedPartLayout.layout(TrimmedPartLayout.java:120) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1263) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1249) at org.eclipse.swt.widgets.Composite.layout(Composite.java:664) at org.eclipse.swt.widgets.Composite.layout(Composite.java:622) at org.eclipse.e4.ui.workbench.renderers.swt.WBWRenderer.postProcess(WBWRenderer.java:585)
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/workbench/PartRenderingEngineTests.java
assertNull("No widget for an unrendered window", window.getWidget());
		assertNull("No context for an unrendered window", window.getContext());
		window.setToBeRendered(true);
		assertNotNull("Rendered window should have a widget",
				window.getWidget());
		assertNotNull("Rendered window should have a context",
				window.getContext());
	}
	public void testBug334644_02() {
		MApplication application = ApplicationFactoryImpl.eINSTANCE
				.createApplication();
		MWindow window = BasicFactoryImpl.eINSTANCE.createWindow();
		application.getChildren().add(window);
		application.setSelectedElement(window);
		application.setContext(appContext);
		appContext.set(MApplication.class.getName(), application);
		window.setToBeRendered(true);
		wb = new E4Workbench(application, appContext);
		wb.createAndRunUI(window);
		assertNotNull("Rendered window should have a widget",
				window.getWidget());
		assertNotNull("Rendered window should have a context",
				window.getContext());
		window.setToBeRendered(false);
		assertNull("No widget for an unrendered window", window.getWidget());
		assertNull("No context for an unrendered window", window.getContext());
	}
	public void testRemoveGui_Bug334577_01() {
		MApplication application = ApplicationFactoryImpl.eINSTANCE
				.createApplication();