Bug 317912 3.x RCP applications have to be updated before they can run in e4
Currently the Eclipse 4.0 SDK does not allow to run standard Eclipse 3.6 RCP applications. Build ID: I20100623-1410. Create a new plugin project. Select RCP and select the "RCP with a view template". If you run it you receive: org.eclipse.core.runtime.AssertionFailedException: null argument:applicationXMI argument missing at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:85) at org.eclipse.e4.ui.internal.workbench.swt.E4Application.loadApplicationModel(E4Application.java:216) at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:136) at org.eclipse.ui.internal.Workbench$3.run(Workbench.java:528) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:521) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at testing.Application.start(Application.java:20) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) 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:369) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407) at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
bundles/org.eclipse.e4.ui.workbench.swt/src/org/eclipse/e4/ui/internal/workbench/swt/E4Application.java
}
			public CSSStyleDeclaration getStyle(Object widget) {
				return null;
			}
			public void setClassnameAndId(Object widget, String classname,
					String id) {
			}
		});
		
		
		
		appContext.set(IExtensionRegistry.class.getName(), registry);
		appContext.set(IContributionFactory.class.getName(),
				contributionFactory);
		appContext.set(IShellProvider.class.getName(), new IShellProvider() {
			public Shell getShell() {
				return null;
			}
		});
		return appContext;
	}
	/**
	 * Simplified copy of IDEAplication processing that does not offer to choose
	 * a workspace location.
	 */
	private boolean checkInstanceLocation(Location instanceLocation, Shell shell) {
		if (instanceLocation == null) {
			MessageDialog
					.openError(
							shell,