This is a standalone version of the CLI based JMX tool Twiddle by JBoss.
The original Twiddle is a simple but powerful CLI based JMX client often used by e g system administrators to retrieve various JMX data for use in shell scripting.
It is normally bundled with JBoss AS up to community version 6.
As Twiddle - or similar tool - was missing from the JBoss AS7 / WildFly distributions, the need for this type of tool has been in high demand. To remedy this, twiddle-standalone was born.
twiddle-standalone has initially been created by re-packaging the twiddle script (twiddle.sh with some modifications) and required JARs from JBoss AS 6.1.0.Final.
See also JSR-160.
To make twiddle-standalone work for JBossAS7/WildFly - that utilizes the remoting-jmx protocol for external retrieval of JMX values - various new modules (JARs) has been linked in. As these modules vary somewhat between JBossAS7/WildFly distributions, they are currently not part of the twiddle-standalone distribution itself.
Some JAR:s of JBoss AS7 or WildFly are needed for the remoting-jmx protocol to work, so a local (to twiddle-standalone) installation of JBoss AS7 or WildFly is recommended for easy setup. Alternatively, look in $TWIDDLE_HOME/bin/twiddle.sh for the JAR:s needed - they are listed by the MODULES variable - and add them to a location of more convenience to you particular environment and needs.
First set an environment variable JBOSS_HOME to the root of your JBossAS7/WildFly installation, in your shell or the twiddle.sh script itself. E g
All old twiddle commands should work as before.
Try running twiddle-standalone by executing
To access and retrieve values from an JBossAS7/Wildfly instance you need to specify the remoting-jmx protocol, like
twiddle.sh -s service:jmx:remoting-jmx://127.0.0.1:9999 get java.lang:type=ClassLoading
which (with WildFly 8.0.0.Beta1) would give an output of something like
12:18:21,150 INFO [xnio] XNIO version 3.1.0.CR7 12:18:21,173 INFO [nio] XNIO NIO Implementation Version 3.1.0.CR7 12:18:21,212 INFO [remoting] JBoss Remoting version 4.0.0.Beta1 TotalLoadedClassCount=7685 Verbose=false LoadedClassCount=7685 UnloadedClassCount=0 ObjectName=java.lang:type=ClassLoading
When running against JBoss/EAP server, please, manually uncomment JBoss section in twiddle.sh
This version of twiddle-standalone has successfully (and unaltered) been tested on OS X 10.9 with Java SE 7 (1.7.0_45) and JBossAS/WildFly 7.2.0 and Wildfly 8.0.0.Beta1