Bug 155493 [Deploy] Pictures and chart pictures are lost when preview on Weblogic Server using WAR deploy
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
Level level = Level.OFF;
		if ( "SEVERE".equalsIgnoreCase( logLevel ) ) 
		{
			level = Level.SEVERE;
		}
		else if ( "WARNING".equalsIgnoreCase( logLevel ) ) 
		{
			level = Level.WARNING;
		}
		else if ( "INFO".equalsIgnoreCase( logLevel ) ) 
		{
			level = Level.INFO;
		}
		else if ( "CONFIG".equalsIgnoreCase( logLevel ) ) 
		{
			level = Level.CONFIG;
		}
		else if ( "FINE".equalsIgnoreCase( logLevel ) ) 
		{
			level = Level.FINE;
		}
		else if ( "FINER".equalsIgnoreCase( logLevel ) ) 
		{
			level = Level.FINER;
		}
		else if ( "FINEST".equalsIgnoreCase( logLevel ) ) 
		{
			level = Level.FINEST;
		}
		else if ( "OFF".equalsIgnoreCase( logLevel ) )