src/share/classes/java/util/logging/LoggingProxyImpl.java

@@ -104,9 +104,14 @@
     public String getLevelName(Object level) {
         return ((Level) level).getLevelName();
     }
 
     @Override
+    public int getLevelValue(Object level) {
+        return ((Level) level).intValue();
+    }
+
+    @Override
     public String getProperty(String key) {
         return LogManager.getLogManager().getProperty(key);
     }
 }