Bug 199687 Compile error occurs in org.eclipse.birt.report.engine in daily build 20070813
Compile error occurs in org.eclipse.birt.report.engine in daily build 20070813. Please see the attachment for details.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/EngineTask.java
else
		{
			inputValues.put( name, new ParameterAttribute( null, displayText ) );
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api.IEngineTask#cancel()
	 */
	public void cancel( )
	{
		cancelFlag = true;
		executionContext.cancel( );
	}
	public void cancel( Object signal )
	{
		if ( signal == null )
		{
			throw new IllegalArgumentException( "signal can't be null" );
		}
		cancelFlag = true;
		long waitingTime = 0;
		do
		{
			waitingTime += 100;
			try
			{
				Thread.sleep( 100 );
			}