Bug 179636 [Smoke] Chart can not be previewed [0001]
Description: Chart can not be previewed Build number: 2.2.0.v20070328-0630 Steps to reproduce: 1. New a chart, preview. Expected result: Chart is displayed correctly. Actual result: Chart can not be previewed. Error log: N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
if ( filePath.length( ) <= 0 && !isCreated )
			return null;
		if ( filePath.length( ) <= 0 )
		{
			filePath = generateDocumentFromReport( request );
			filePath = createDocumentPath( filePath, request );
		}
		else
		{
			
			if ( !isRelativePath( filePath ) )
				return filePath;
			
			if ( isRelativePath( workingFolder ) )
			{
				filePath = getRealPath( workingFolder + "/" + filePath, request 
						.getSession( ).getServletContext( ) );
			}
			else
			{
				filePath = workingFolder + File.separator + filePath;
			}
		}
		return filePath;
	}
	/**
	 * Create the file path of the the document. The document will be put under
	 * the document folder based on different session id.
	 *