Error when trying to use with JBoss 7.1

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What steps will reproduce the problem?
Just try to run JBoss with loosejar agent 

What version of the product are you using? On what operating system?
JBoss 7.1.1 on Ubuntu 12.10

Please provide any additional information below.
Output:

=========================================================================

  JBoss Bootstrap Environment

  JBOSS_HOME: /workspace/jboss7

  JAVA: java

  JAVA_OPTS:  -server -XX:+UseCompressedOops -XX:+TieredCompilation -javaagent:/home/gk/Downloads/loosejar-1.0.1.jar -Xms1024m -Xmx2048m -XX:NewRatio=3 -XX:MinHeapFreeRatio=20 -XX:PermSize=256m -XX:MaxPermSize=320m -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -Djboss.server.default.config=standalone-full.xml -Dfile.encoding=UTF-8 -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n 
=========================================================================

[loosejar]: loosejar analysis is registered to run on JVM shutdown.
[loosejar]: Registering loosejar as a JMX service...
[loosejar]: Registered loosejar as a JMX service: 
[com.googlecode.loosejar:type=LooseJarMBean]

Listening for transport dt_socket at address: 8787
WARNING: Failed to load the specified log manager class 
org.jboss.logmanager.LogManager
Exception in thread "main" java.lang.ExceptionInInitializerError
    at org.jboss.as.server.Main.main(Main.java:73)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.jboss.modules.Module.run(Module.java:260)
    at org.jboss.modules.Main.main(Main.java:291)
Caused by: java.lang.IllegalStateException: The LogManager was not properly 
installed (you must set the "java.util.logging.manager" system property to 
"org.jboss.logmanager.LogManager")
    at org.jboss.logmanager.Logger.getLogger(Logger.java:61)
    at org.jboss.logmanager.log4j.BridgeRepositorySelector.<clinit>(BridgeRepositorySelector.java:42)
    ... 7 more
[loosejar]: Found 1516 classes loaded in the JVM.
[loosejar]: Found 10 various ClassLoader(s) inside the JVM.
[loosejar]: Summary for [sun.misc.Launcher$AppClassLoader] classloader:

    Jar: /workspace/jboss7/jboss-modules.jar
    Utilization: 72,15% - loaded 114 of 158 classes.

When using without loosejar everything is ok. Also setting property mentioned 
in error message does not help.

Original issue reported on code.google.com by kaczmarc...@mail.com on 12 May 2014 at 7:40