Bug 124444 Preview attached file in pdf will display nothing.
Description: Preview attached file in pdf will display nothing. Steps to reproduce: 1. Preview attached design file in pdf Expected result: Report content shows Actual result: Wait for 10 minutes but nothing showed at all
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/AbstractDataEngine.java
catch ( BirtException e )
		{
			logger.log( Level.SEVERE, e.getMessage( ), e );
			context.addException( e );
			return null;
		}
	}
	abstract public void close( );
	abstract public void shutdown( );
	public Object evaluate( IBaseExpression expr )
	{
		if ( expr == null )
		{
			return null;
		}
		
		if ( expr.getHandle( ) != null && !queryResultStack.isEmpty( ) )
		{
			try
			{
				Object value = ( (DteResultSet) queryResultStack.getLast( ) )
						.getResultIterator( ).getValue( expr );
				if ( value != null )
				{
					return context.jsToJava( value );
				}
				return null;
			}
			catch ( BirtException e )
			{