Bug 207897 [Automation][Regression]A DataException is thrown out when preview reportdesign
Description: A DataException is thrown out when preview reportdesign Test Date: 20071030 Test Build: BIRT2.2.2 v20071029 Step to reproduce: 1. Use the reportdesign attached 2. Preview it Expect result: Report can be previewed without any exception. Actual result: A DataException is thrown out.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
* @return Returns the report.
	 */
	public IReportContent getReportContent( )
	{
		return reportContent;
	}
	public void setReportContent( IReportContent content )
	{
		this.reportContent = content;
		content.getErrors( ).addAll( onPrepareErrors );
	}
	/**
	 * Loads scripts that are stored in an external file. Used to support
	 * include-script. Each script file should be load only once. and the script
	 * in the file must be encoded in UTF-8.
	 * 
	 * @param fileName
	 *            script file name
	 */
	public void loadScript( String fileName )
	{
		ReportDesignHandle reportDesign = this.getDesign( );
		URL url = null;
		if ( reportDesign != null )
		{
			url = reportDesign.findResource( fileName,
					IResourceLocator.LIBRARY );
		}
		if (url == null)
		{