Bug 25955 [Workbench] Exiting while saving can cause problems
This seems to be a problem with either the workbench in general or the editor structure in particular. I have reproduced this with the Java editor but there is no reason why it wouldn't occur with other editors as well. Dirty a Java editor. Press Ctrl+S to save the editor. While it is saving, quickly close the main perspective window, either by clicking the X or by choosing File->Save. When prompted to save dirty resources say Okay. An error dialog appears stating that the save failed, and a stack trace is printed to the log (sorry, I don't have my log anymore, but it's fairly easy to reproduce). The dialog says: "Problems occurred while trying to save the state of the workbench." Details: "Save cannot be called from inside an operation." I guess the real problem is that I'm able to exit while a workspace operation is taking place. Reproduced on both Win2K and Linux.
bundles/org.eclipse.ui.workbench/extensions/org/eclipse/jface/window/ApplicationWindow.java
* @return a status line manager
 */
protected StatusLineManager createStatusLineManager() {
	return new StatusLineManager();
}
/**
 * Returns a new tool bar manager for the window.
 * <p>
 * Subclasses may override this method to customize the tool bar manager.
 * </p>
 * @return a tool bar manager
 */
protected ToolBarManager createToolBarManager(int style) {
	return new ToolBarManager(style);
}
/**
 * Creates the control for the tool bar manager.
 * <p>
 * Subclasses may override this method to customize the tool bar manager.
 * </p>
 * @return a Control
 */
protected Control createToolBarControl(Shell shell) {
	if (toolBarManager instanceof ToolBarManager) {
		return ((ToolBarManager)toolBarManager).createControl(shell);
	} 
	return null;
}
/**
 * Returns the default font used for this window.