Bug 175776 [smoke]Can not export data in Web viewer[02]
Description: No data is exported after export data from Web viewer Build number: 2.2.0.v20070228-0630 Steps to reproduce: 1, Drag a dataset into layout 2, Preview the report in Web Viewer 3, Click Export Data 4, Select the columns and click OK button 5, Open the exportdata.csv Expected result: The data of column are exported in the csv file Actual result: <html><head><title>Error</title><body><font color="red">java.lang.NullPointerException</font></body></html> in the csv file Error log:
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
* Constructor.
	 * 
	 * @param request
	 */
	public ViewerAttributeBean( HttpServletRequest request )
	{
		try
		{
			init( request );
		}
		catch ( Exception e )
		{
			this.exception = e;
		}
	}
	/**
	 * Init the bean.
	 * 
	 * @param request
	 * @throws Exception
	 */
	protected void __init( HttpServletRequest request ) throws Exception
	{
		
		if ( ParameterAccessor.isGetImageOperator( request ) )
		{
			return;
		}
		this.category = "BIRT"; 
		this.masterPageContent = ParameterAccessor