Bug 178164 Use IEngineTask.status constants and remove unnecessary status variables in EngineTask.
1)Remove following redundant variables in EngineTask used for status info. protected final int RUNNING_STATUS_START = 0; protected final int RUNNING_STATUS_RUNNING = 1; protected final int RUNNING_STATUS_STOP = 2; EngineTask already has access to constants declared in IEngineTask. Use those instead. 2)Remove the unused errorHandlingOption in EngineTask.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/RunAndRenderTask.java
layoutEngine = createReportLayoutEngine( pagination, renderOptions );
					}
				}
				if ( layoutEngine != null )
				{
					layoutEngine.setLocale( executionContext.getLocale( ) );
					
					CompositeLayoutPageHandler layoutPageHandler = new CompositeLayoutPageHandler( );
					OnPageBreakLayoutPageHandle handle = new OnPageBreakLayoutPageHandle(
												executionContext );
					layoutPageHandler.addPageHandler( handle );
					layoutPageHandler.addPageHandler( new ContextPageBreakHandler(
							executionContext ) );
					layoutEngine.setPageHandler( layoutPageHandler );
					CompositeContentEmitter outputEmitters = new CompositeContentEmitter(
							format );
					outputEmitters.addEmitter( emitter );
					outputEmitters.addEmitter( handle.getEmitter( ) );
					layoutEngine.layout( lExecutor, outputEmitters, paginate );
				}
			}
			closeRender( );
			executionContext.closeDataEngine( );
			closeFactory( );
		}
		catch ( EngineException e )
		{
			throw e;
		}
		catch ( Exception ex )