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/executor/ExecutionContext.java
* @param locale
	 *            The locale to set.
	 */
	public void setLocale( Locale locale )
	{
		this.locale = locale;
	}
	/**
	 * @return Returns the report.
	 */
	public Report getReport( )
	{
		return report;
	}
	/**
	 * @param report
	 *            The report to set.
	 */
	public void setReport( Report report )
	{
		this.report = report;
	}
	public void openDataEngine( )
	{
		if ( dataEngine == null )
		{
			dataEngine = DataEngineFactory.getInstance( ).createDataEngine(
					this );
		}
	}