Filed By : JCK team
JDK : java full version "1.6.0-fcs"
JCK : 6a
Platform[s] : FAIL - seems to be all
switch/Mode : default
JCK test owner : http://javaweb.sfbay/jcce/tcks/jck/docs/others/owners.jto
Failed tests:
  api/java_lang/instrument/Instrumentation/index.html#Instrumentation[Instrumentation219]
  api/java_lang/instrument/Instrumentation/attach.html#InstrumentationAttach[Instrumentation219]

Problem description
===================
The javadoc specification for the Instrumentation.retransformClasses(Class<?>... classes) method at:
  http://javaweb.sfbay/java/re/jdk/6.0/latest/docs/api/java/lang/instrument/Instrumentation.html#retransformClasses(java.lang.Class...)
states as follows:
  ---Excerpt-from-spec---
  Throws:
  NullPointerException - if the supplied classes array or any of its components is null.
  ---End-of-excerpt---

However, the call of retransformClasses(Class<?>... classes) throws unexpected InternalError
if any of supplied classes array components is null.

Please see attached minimized test (test.tar.gz) to reproduce the failure.

Minimized test output:
======================
<yg153347@d-espb04-125-170> java -javaagent:agent.jar Test
Exception in thread "main" java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:323)
        at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:338)
Caused by: java.lang.InternalError: class redefinition failed: invalid class
        at sun.instrument.InstrumentationImpl.retransformClasses0(Native Method) at sun.instrument.InstrumentationImpl.retransformClasses(InstrumentationImpl.java:124)
        at com.test.agent.Agent.doTest(Agent.java:23)
        at com.test.agent.Agent.premain(Agent.java:13)
        ... 6 more
FATAL ERROR in native method: processing of -javaagent failed

Additional info:
================
> uname -a
SunOS d-espb04-125-170 5.10 Generic_118833-33 sun4u sparc SUNW,Ultra-60