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
}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api.IGetParameterDefinitionTask#getParameterDefn(java.lang.String)
	 */
	public IParameterDefnBase getParameterDefn( String name )
	{
		IParameterDefnBase ret = null;
		if ( name == null )
		{
			return ret;
		}
		Collection original = ( ( ReportRunnable ) runnable )
				.getParameterDefns( false );
		Iterator iter = original.iterator( );
		while ( iter.hasNext( ) )
		{
			ParameterDefnBase pBase = ( ParameterDefnBase ) iter.next( );
			if ( name.equals( pBase.getName( ) ) )
			{
				try
				{
					ret = ( IParameterDefnBase ) pBase.clone( );
					break;
				} catch ( CloneNotSupportedException e ) 
				
				{
					log.log( Level.SEVERE, e.getMessage( ), e );
				}