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
this.runnable = runnable;
		ReportDefinition designDefn = new ReportDefinition(
				(ReportDesignHandle) runnable.getDesignHandle( ) );
		scriptContext.registerBean( "design", designDefn );
	}
	/**
	 * @return Returns the renderOption.
	 */
	public IRenderOption getRenderOption( )
	{
		return renderOption;
	}
	/**
	 * @param renderOption
	 *            The renderOption to set.
	 */
	public void setRenderOption( IRenderOption renderOption )
	{
		this.renderOption = renderOption;
	}
	public String getOutputFormat( )
	{
		if ( renderOption != null )
		{
			return renderOption.getOutputFormat( );
		}
		return null;
	}
	public class ElementExceptionInfo
	{