8 Replies Latest reply on May 31, 2011 10:02 AM by peterj

Twiddle.sh failure?

dragonix May 31, 2011 6:18 AM

Hi all

I'm new here and i already got a question about something.

I'm trying to use this script twiddle.sh for managing a JMX-console (getting info about a server).

Anyways, you guys probably know better what Twiddle.sh do

When i execute this code, i get the following error:

$ ./twiddle.sh -s localhost get "jboss.system:type=ServerInfo"

Exception in thread "main" java.lang.NoClassDefFoundError: while resolving class: org.jboss.console.twiddle.Twiddle
   at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.5.0.0)
   at _Jv_ThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_RunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.5.0.0)
   at __gcj_personality_v0 (/opt/jboss-5.1.0.GA/bin/java.version=1.4.2)
   at __libc_start_main (/lib/tls/libc-2.3.4.so)
   at _Jv_RegisterClasses (/opt/jboss-5.1.0.GA/bin/java.version=1.4.2)
Caused by: java.lang.ClassNotFoundException: java.lang.StringBuilder not found in [file:/opt/jboss-5.1.0.GA/bin/twiddle.jar, file:/opt/jboss-5.1.0.GA/client/jbossall-client.jar, file:/opt/jboss-5.1.0.GA/client/getopt.jar, file:/opt/jboss-5.1.0.GA/client/log4j.jar, file:/opt/jboss-5.1.0.GA/lib/jboss-jmx.jar, file:/opt/jboss-5.1.0.GA/lib/dom4j.jar, file:/usr/share/java/libgcj-3.4.6.jar, file:./, core:/]
   at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at gnu.gcj.runtime.VMClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_FindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_BytecodeVerifier.verify_instructions_0() (/usr/lib/libgcj.so.5.0.0)
   at _Jv_VerifyMethod(_Jv_InterpMethod) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_PrepareClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_WaitForState(java.lang.Class, int) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.linkClass0(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   ...9 more

Does anyone know what the problem is?

thanks in advance

Brownie

1. Re: Twiddle.sh failure?

peterj May 31, 2011 8:29 AM (in response to dragonix)

>>/usr/lib/libgcj.so.5.0.0
Looks like you are running on linux with the GNU JVM - that JVM is not supported for JBoss AS (nor for any app server for that matter). You need to install either the OpenJVM or the Sun/Oracle JVM, and then set JAVA_HOME to that JVM.
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2. Re: Twiddle.sh failure?

dragonix May 31, 2011 8:50 AM (in response to peterj)

Okay, so can you say how i can install that OpenJVM?
or can you give me a website where it's being explained?

Thanks in advance
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3. Re: Twiddle.sh failure?

peterj May 31, 2011 8:58 AM (in response to dragonix)

What Linux distro are you using? Usually the package name is "openjdk", try using that with yum, apt-get, yacc, or whatever packaging tool is on your distro.

Or you can download and install the Oracle JDK from http://www.oracle.com/technetwork/java/javase/downloads/index.html, that is what I always use.
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4. Re: Twiddle.sh failure?

dragonix May 31, 2011 9:03 AM (in response to peterj)

$ cat /etc/*release*
Red Hat Enterprise Linux ES release 4 (Nahant Update 7)
Which one of the proposed link do i need to download and install?
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5. Re: Twiddle.sh failure?

dragonix May 31, 2011 9:11 AM (in response to peterj)

now i've got this error
$ ./twiddle.sh -s localhost get "jboss.system:type=ServerInfo"
Exception in thread "main" java.lang.NoClassDefFoundError: while resolving class: org.jboss.console.twiddle.Twiddle
   at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.5.0.0)
   at _Jv_ThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_RunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.5.0.0)
   at __gcj_personality_v0 (/opt/jboss-5.1.0.GA/bin/java.version=1.4.2)
   at __libc_start_main (/lib/tls/libc-2.3.4.so)
   at _Jv_RegisterClasses (/opt/jboss-5.1.0.GA/bin/java.version=1.4.2)
Caused by: java.lang.ClassNotFoundException: java.lang.StringBuilder not found in [file:/opt/jboss-5.1.0.GA/bin/twiddle.jar, file:/opt/jboss-5.1.0.GA/client/jbossall-client.jar, file:/opt/jboss-5.1.0.GA/client/getopt.jar, file:/opt/jboss-5.1.0.GA/client/log4j.jar, file:/opt/jboss-5.1.0.GA/lib/jboss-jmx.jar, file:/usr/share/java/libgcj-3.4.6.jar, file:./, core:/]
   at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at gnu.gcj.runtime.VMClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_FindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_BytecodeVerifier.verify_instructions_0() (/usr/lib/libgcj.so.5.0.0)
   at _Jv_VerifyMethod(_Jv_InterpMethod) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_PrepareClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_WaitForState(java.lang.Class, int) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.linkClass0(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   ...9 more
and i succesfully installed
Java SE Development Kit 6 Update 25
http://www.oracle.com/technetwork/java/javase/downloads/jdk-6u25-download-346242.html
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6. Re: Twiddle.sh failure?

peterj May 31, 2011 9:28 AM (in response to dragonix)

For RHEL, use jdk-6u25-linux-i586-rpm.bin (or jdk-6u25-linux-x64-rpm.bin if your are running 64-bit).

Based on the error (which is the same error, by the way), it appears that you did not set JAVA_HOME. If you used the *.rpm.bin, then the JDK will have been installed at /usr/java/jdk1.6.0_25, set JAVA_HOME to that. Or there is probably a /usr/java/default (I think that is the correct directory name) symlink to jdk1.6.0_25, so you might be better off setting JAVA_HOME to /usr/java/default.
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7. Re: Twiddle.sh failure?

dragonix May 31, 2011 9:37 AM (in response to peterj)

Thanks man !!!!!!

Can you also explain WHY i needed that JDK? because i had a java installed (normally) ?!
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8. Re: Twiddle.sh failure?

peterj May 31, 2011 10:02 AM (in response to dragonix)

The GNU JDK is missing a lot of features. And many of those features that are missing are things that app servers, like JBoss AS, require. So you can use the JNU JDK for simple Java apps, but not for anything reasonably complicated.
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Java SE Development Kit 6 Update 25