Bug 102150 RCP splashscreen stays forever in case of error
If a serious error occurs during the startup of an RCP application, like a missing plugin etc. so that the application could not start, the splash screen of the application stays for ever. This happens if the application is started by PDE using the "Run as eclipse application" menu, but the process has been stopped using the "Stop" button. I had to kill the new eclipse.exe process using the windows taskmanager.
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/Command.java
* the listener while handling the event.
				 */
				final IExecutionListener[] listeners = (IExecutionListener[]) executionListeners
						.toArray(new IExecutionListener[executionListenersSize]);
				for (int i = 0; i < executionListenersSize; i++) {
					final IExecutionListener listener = listeners[i];
					listener.postExecuteFailure(getId(), e);
				}
			}
		}
	}
	/**
	 * Notifies the execution listeners for this command that an execution has
	 * completed successfully.
	 * 
	 * @param returnValue
	 *            The return value from the command; may be <code>null</code>.
	 */
	private final void firePostExecuteSuccess(final Object returnValue) {
		if (executionListeners != null) {
			final int executionListenersSize = executionListeners.size();
			if (executionListenersSize > 0) {
				/*
				 * Bug 88629. Copying to an array avoids a
				 * ConcurrentModificationException if someone tries to remove
				 * the listener while handling the event.
				 */
				final IExecutionListener[] listeners = (IExecutionListener[]) executionListeners
						.toArray(new IExecutionListener[executionListenersSize]);
				for (int i = 0; i < executionListenersSize; i++) {