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/api/impl/GetParameterDefinitionTask.java
} catch ( BirtException e )
				{
					log.log( Level.SEVERE, e.getMessage( ) );
				}
				ScriptExpression labelExpr = null;
				if ( labelStmt != null && labelStmt.length( ) > 0 )
				{
					labelExpr = new ScriptExpression( labelStmt );
				}
				ScriptExpression valueExpr = new ScriptExpression( valueStmt );
				QueryDefinition queryDefn = new QueryDefinition( );
				queryDefn.setDataSetName( dataSetName );
				
				Iterator paramIter = dataSet.paramBindingsIterator( );
				while ( paramIter.hasNext( ) )
				{
					ParamBindingHandle binding = ( ParamBindingHandle ) paramIter
							.next( );
					String paramName = binding.getParamName( );
					String paramExpr = binding.getExpression( );
					queryDefn.getInputParamBindings( ).add(
							new InputParameterBinding( paramName,
									new ScriptExpression( paramExpr ) ) );
				}
				if ( labelExpr != null )
				{
					queryDefn.getRowExpressions( ).add( labelExpr );
				}
				queryDefn.getRowExpressions( ).add( valueExpr );