diff -rwu src.orig/org/jboss/modcluster/catalina/ModClusterListener.java src/org/jboss/modcluster/catalina/ModClusterListener.java
--- src.orig/org/jboss/modcluster/catalina/ModClusterListener.java	2010-05-03 23:36:21.000000000 +0400
+++ src/org/jboss/modcluster/catalina/ModClusterListener.java	2010-08-31 15:18:49.141996700 +0400
@@ -36,6 +36,7 @@
 import org.apache.tomcat.util.IntrospectionUtils;
 import org.apache.tomcat.util.modeler.Registry;
 import org.jboss.logging.Logger;
+import org.jboss.logging.NullLoggerPlugin;
 import org.jboss.modcluster.JvmRouteFactory;
 import org.jboss.modcluster.ModClusterService;
 import org.jboss.modcluster.ModClusterServiceMBean;
@@ -62,7 +63,11 @@
       // server logging is done via java.util.logging. So, try to 
       // initialize JBoss Logging to use the JDK logging plugin.
       // But only if it isn't already initialized to something else!
-      if (Logger.getPluginClassName() == null)
+      if (Logger.getPluginClassName() == null || (
+    				  !Logger.getPluginClassName().equals(NullLoggerPlugin.class.getName())
+    				  && 
+    				  Logger.getLogger(ModClusterListener.class).getLoggerPlugin() instanceof NullLoggerPlugin
+    				  ))
       {
          String pluginClass = "org.jboss.logging.jdk.JDK14LoggerPlugin";