8272780: ServerNotifForwarder.removeNotificationListener() incorrect exception handling

Reviewed-by: dholmes

Author: kevinjwalls

src/java.management/share/classes/com/sun/jmx/remote/internal/ServerNotifForwarder.java

@@ -169,7 +169,7 @@ public void removeNotificationListener(ObjectName name,
             } catch (Exception e) {
                 // Give back the first exception
                 //
-                if (re != null) {
+                if (re == null) {
                     re = e;
                 }
             }