Bug 180402 [Smoke][Automation][Regression] Chart cannot be rendered at all
steps to reproduce: - create a report - add a chart item to the report - preview the report expected behavior: - chart is rendered actual behavior: - chart was not rendered at all
chart/org.eclipse.birt.chart.reportitem/src/org/eclipse/birt/chart/reportitem/ChartReportItemGenerationImpl.java
}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.extension.IReportItemGeneration#needSerialization()
	 */
	public boolean needSerialization( )
	{
		return true;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.extension.IReportItemGeneration#onRowSets(org.eclipse.birt.report.engine.extension.IRowSet[])
	 */
	public void onRowSets( IRowSet[] rowSets ) throws BirtException
	{
		
		if ( handle == null )
		{
			return;
		}
		String javaHandlerClass = handle.getEventHandlerClass( );
		if ( javaHandlerClass != null && javaHandlerClass.length( ) > 0 )
		{
			
			cm.setScript( javaHandlerClass );
		}
		
		rtc = Generator.instance( ).prepare( cm,