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
public void setAppContext( Map appContext )
	{
		this.appContext = appContext;
	}
	public IReportContext getReportContext( )
	{
		return reportContext;
	}
	public void setReportContext( IReportContext reportContext )
	{
		this.reportContext = reportContext;
	}
	public void setPageNumber( long pageNo )
	{
		pageNumber = pageNo;
		scriptContext.registerBean( "pageNumber", new Long( pageNumber ) );
		if ( totalPage < pageNumber )
		{
			setTotalPage( pageNumber );
		}
	}
	/**
	 * set the total page.
	 * 
	 * @param totalPage
	 *            total page
	 */
	public void setTotalPage( long totalPage )
	{
		if ( totalPage > pageNumber )