Bug 200812 Issue when remove one separator setting in viewer.property[0002]
Description: Issue when remove one separator setting in viewer.property Build number:2.2.1.v200708220927 Steps to reproduce: 1. Deploy birt. 2. Open viewer.properties under WEB-INF folder. 3. Delete "viewer.sep.0=," line 4. Start server. 5. Preview report. 6. Export Data, select columns and select "Comma(,)", click OK. Expected result: Comma(,) isn't in the separator list. Actual result: Nothing happened after step6 and no error logs. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
{
		String realPath = null;
		boolean isRelative = false;
		path = convertSystemPath( path );
		
		if ( path == null || path.trim( ).length( ) <= 0 )
		{
			path = DataUtil.trimString( defaultPath );
		}
		
		if ( isRelativePath( path ) )
		{
			isRelative = true;
			if ( !path.startsWith( "/" ) ) 
				path = "/" + path; 
			realPath = DataUtil.trimSepEnd( getRealPath( path, context ) );
		}
		else
		{
			
			realPath = DataUtil.trimSepEnd( path );
		}
		boolean flag = makeDir( realPath );
		
		if ( !canWrite )
			return realPath;
		
		if ( flag )
		{
			try