Bug 40347 [misc] Renaming a project with an open editor fills log
I20030716+plugin-export 1) have a Java file open in the Java editor 2) rename the enclosing project -> exception in log but no stacktrace
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
setInput(newInput);
		}
		
		if (progressMonitor != null)
			progressMonitor.setCanceled(!success);
	}
	
	/*
	 * @see AbstractTextEditor#doSetInput(IEditorInput)
	 */
	protected void doSetInput(IEditorInput input) throws CoreException {
		super.doSetInput(input);
		configureTabConverter();
	}
	private void configureTabConverter() {
		if (fTabConverter != null) {
			IDocumentProvider provider= getDocumentProvider();
			if (provider instanceof CompilationUnitDocumentProvider) {
				CompilationUnitDocumentProvider cup= (CompilationUnitDocumentProvider) provider;
				fTabConverter.setLineTracker(cup.createLineTracker(getEditorInput()));
			}
		}
	}
	
	private int getTabSize() {
		Preferences preferences= JavaCore.getPlugin().getPluginPreferences();
		return preferences.getInt(CODE_FORMATTER_TAB_SIZE);	
	}
	
	private void startTabConversion() {