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/RunTask.java
public void close( )
	{
		super.close( );
	}
	/**
	 * @deprecated
	 */
	public void run( FolderArchive fArchive ) throws EngineException
	{
		try
		{
			runningStatus = RUNNING_STATUS_RUNNING;
			setDataSource( fArchive );
			run( (IDocArchiveWriter) fArchive );
		}
		finally
		{
			runningStatus = RUNNING_STATUS_STOP;
		}
	}
	
	public void cancel( )
	{
		super.cancel( );
		if ( documentBuilder != null )
		{
			documentBuilder.cancel( );
		}
	}
}