diff --git a/samples/contacts/src/main/resources/log4j.properties b/samples/contacts/src/main/resources/log4j.properties
index 7b144a76aa..d79dd9ae19 100644
--- a/samples/contacts/src/main/resources/log4j.properties
+++ b/samples/contacts/src/main/resources/log4j.properties
@@ -11,7 +11,10 @@ log4j.rootLogger=WARN, stdout, fileout
 #log4j.logger.net.sf.acegisecurity.acl=DEBUG, stdout, fileout
 #log4j.logger.net.sf.acegisecurity.acl.basic=DEBUG, stdout, fileout
 #log4j.logger.net.sf.acegisecurity.taglibs.authz=DEBUG, stdout, fileout
-
+#log4j.logger.net.sf.acegisecurity.ui.basicauth=DEBUG, stdout, fileout
+#log4j.logger.net.sf.acegisecurity.afterinvocation=DEBUG, stdout, fileout
+#log4j.logger.net.sf.acegisecurity.ui.rmi=DEBUG, stdout, fileout
+#log4j.logger.net.sf.acegisecurity.ui.httpinvoker=DEBUG, stdout, fileout
 
 # Console output...
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender