Bug 135790 ClassCastException in RowData.
ClassCastException is thrown in RowData line 81(IBaseExpression expr = ( IBaseExpression ) valueExpressions.get( index - 1 );).
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/parser/EngineIRVisitor.java
}
		new TableItemDesignLayout( ).layout( grid );
		currentElement = grid;
	}
	public void visitImage( ImageHandle handle )
	{
		
		ImageItemDesign image = new ImageItemDesign( );
		setupReportItem( image, handle );
		
		ActionHandle action = handle.getActionHandle( );
		if ( action != null )
		{
			image.setAction( createAction( action ) );
		}
		
		image.setAltText( handle.getAltTextKey( ), handle.getAltText( ) );
		
		image.setHelpText( handle.getHelpTextKey( ), handle.getHelpText( ) );
		
		String imageSrc = handle.getSource( );
		if ( EngineIRConstants.IMAGE_REF_TYPE_URL.equals( imageSrc ) )
		{
			image.setImageUri( createExpression( handle.getURI( ) ) );
		}
		else if ( EngineIRConstants.IMAGE_REF_TYPE_EXPR.equals( imageSrc ) )
		{
			String valueExpr = handle.getValueExpression( );
			String typeExpr = handle.getTypeExpression( );
			String imageValue = createExpression( valueExpr );