Bug 121111 Bad event handler class name does not cause an error
Open a report design, open any Data Set's Property editor. Type in an invalid Java class name for the "Event Handler Class" property, say "aaa". Preview a report that uses that Data Set. The report executes normally. No error is shown. Event handlers are an integral part of a report design, and if a script handler class is not found, or if the handler throws a runtime exception, Report Engine should either stop the report execution, or show the error message in the generated report. (Tested with the 2005-12-15 nightly build)
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ModelDteApiAdapter.java
elmtIter = modelDataSet.columnHintsIterator( );
		if ( elmtIter != null )
		{
			List columnDefns = dteDataSet.getResultSetHints( );
			while ( elmtIter.hasNext( ) )
			{
				ColumnHintHandle modelColumnHint = ( ColumnHintHandle ) elmtIter
						.next( );
				ColumnDefinition existDefn = findColumnDefn( columnDefns,
						modelColumnHint.getColumnName( ) );
				if ( existDefn != null )
					updateColumnDefn( existDefn, modelColumnHint );
				else
					dteDataSet
							.addResultSetHint( newColumnDefn( modelColumnHint ) );
			}
		}
	}
	/**
	 * Creates a new DtE API IParameterDefinition from a model's
	 * DataSetParameterHandle.
	 */
	IParameterDefinition newParam( DataSetParameterHandle modelParam )
	{
		ParameterDefinition dteParam = new ParameterDefinition( );
		dteParam.setName( modelParam.getName( ) );
		if ( modelParam.getPosition( ) != null )
			dteParam.setPosition( modelParam.getPosition( ).intValue( ) );
		dteParam.setType( toDteDataType( modelParam.getDataType( ) ) );