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
} else if ( pBase instanceof ParameterGroupDefn )
				{
					Iterator iter2 = ( ( ParameterGroupDefn ) pBase )
							.getContents( ).iterator( );
					while ( iter2.hasNext( ) )
					{
						IParameterDefnBase p = ( IParameterDefnBase ) iter2
								.next( );
						if ( p instanceof ScalarParameterDefn )
						{
							( ( ScalarParameterDefn ) p )
									.setReportDesign( runnable
											.getDesignHandle( ).getDesign( ) );
							( ( ScalarParameterDefn ) p ).setLocale( locale );
							( ( ScalarParameterDefn ) p )
									.evaluateSelectionList( );
						}
					}
				}
			}
		}
		return parameterDefns;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api2.IGetParameterDefinitionTask#evaluateDefaults()
	 */
	public void evaluateDefaults( ) throws EngineException
	{