Bug 168318 [regression]Print doesn't work correctly when preview attached file through external browser[00]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
{
						urls.add( url );
					}
				}
				if ( urls.size( ) != 0 )
				{
					URL[] jarUrls = (URL[]) urls.toArray( new URL[]{} );
					return new URLClassLoader( jarUrls, parent );
				}
			}
			return parent;
		}
	}
	/**
	 * Set the cancel flag.
	 */
	public void cancel( )
	{
		isCancelled = true;
	}
	public boolean isCanceled( )
	{
		return isCancelled;
	}
	
	public void setDataSource( IDocArchiveReader dataSource )
	{
		try
		{
			dataSource.open( );