Bug 63267 [RCP] tab style for M9
the tab style in the IDE in M9 should use the curved style
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
}
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.application.WorkbenchAdvisor#eventLoopException
	 */
	public void eventLoopException(Throwable exception) {
		super.eventLoopException(exception);
		if (exceptionHandler != null) {
			exceptionHandler.handleException(exception);
		} else {
			if (getWorkbenchConfigurer() != null) {
			    getWorkbenchConfigurer().emergencyClose();
			}
		}
	}
	/*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.application.WorkbenchAdvisor#preWindowShellClose
     */
    public boolean preWindowShellClose(
            IWorkbenchWindowConfigurer windowConfigurer) {
        if (getWorkbenchConfigurer().getWorkbench().getWorkbenchWindowCount() > 1) { return true; }
        
        
        IPreferenceStore store = IDEWorkbenchPlugin.getDefault()
                .getPreferenceStore();
        boolean promptOnExit = store
                .getBoolean(IDEInternalPreferences.EXIT_PROMPT_ON_CLOSE_LAST_WINDOW);
        if (promptOnExit) {