Jenkins is not working after update to version 446

Stacktrace on webbrowser (http://jenkins:8080/)

[!] Error

org.jvnet.hudson.reactor.ReactorException: java.lang.Error: java.lang.reflect.InvocationTargetException
at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:246)
at jenkins.InitReactorRunner.run(InitReactorRunner.java:43)
at jenkins.model.Jenkins.executeReactor(Jenkins.java:811)
at jenkins.model.Jenkins.<init>(Jenkins.java:732)
at hudson.model.Hudson.<init>(Hudson.java:81)
at hudson.model.Hudson.<init>(Hudson.java:77)
at hudson.WebAppMain$2.run(WebAppMain.java:217)
Caused by: java.lang.Error: java.lang.reflect.InvocationTargetException
at hudson.init.InitializerFinder.invoke(InitializerFinder.java:124)
at hudson.init.InitializerFinder$TaskImpl.run(InitializerFinder.java:184)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
at jenkins.model.Jenkins$5.runTask(Jenkins.java:800)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919)
at java.lang.Thread.run(Thread.java:736)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:611)
at hudson.init.InitializerFinder.invoke(InitializerFinder.java:120)
... 8 more
Caused by: java.lang.NullPointerException
at org.jenkinsci.main.modules.sshd.SSHD.init(SSHD.java:133)
... 13 more

Server is started by
/opt/ibm/java/bin/java -XX:+HeapDumpOnOutOfMemoryError -jar /home/beta/.hudson/hudson.war

1. /opt/ibm/java/bin/java -version
   java version "1.6.0"
   Java(TM) SE Runtime Environment (build pxp6460sr9fp2-20110625_01(SR9 FP2))
   IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 Linux ppc64-64 jvmxp6460sr9-20110624_85526 (JIT enabled, AOT enabled)
   J9VM - 20110624_085526
   JIT - r9_20101028_17488ifx17
   GC - 20101027_AA)
   JCL - 20110530_01