src/share/classes/sun/net/www/protocol/http/NTLMAuthenticationProxy.java

@@ -140,8 +140,10 @@
         return null;
     }
 
     static void finest(Exception e) {
         PlatformLogger logger = HttpURLConnection.getHttpLogger();
+        if (logger.isLoggable(PlatformLogger.FINEST)) {
         logger.finest("NTLMAuthenticationProxy: " + e);
     }
+    }
 }