Bug 153038 NPE when delete master page content in old report design.
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/internal/ui/editors/layout/ReportEditorWithPalette.java
throws CoreException, InvocationTargetException,
						InterruptedException
				{
					try
					{
						if ( !input.exists( ) )
						{
							
							
						}
						doSave( monitor );
					}
					catch ( Exception e )
					{
						ExceptionHandler.handle( e );
					}
				}
			};
			try
			{
				new ProgressMonitorDialog( getSite( ).getWorkbenchWindow( )
						.getShell( ) ).run( false, true, op );
			}
			catch ( Exception e )
			{
				ExceptionHandler.handle( e );
			}
		}
	}
	/**