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Bug 231027

Summary:	profiler fails to profile oc4j.jar: 'Error: Agent JAR loaded but agent failed to initialize'
Product:	profiler	Reporter:	Tomas Hurka <thurka>
Component:	Base	Assignee:	Tomas Hurka <thurka>
Status:	RESOLVED FIXED
Severity:	normal	Keywords:	VISUALVM
Priority:	P3
Version:	7.2
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:

Description Tomas Hurka 2013-06-10 11:41:54 UTC

Trying to profile oc4j.jar with profiler gives the following error dialog: 

Error 
Agent JAR loaded but agent failed to initiali... 
OK 

The behaviour is identical, regardless if the 'CPU' or the 'Memory' profiling.
Profiler prints out the following exception message on the shell window: 

% /data/jdk1.8.0/bin/jvisualvm 
Exception in thread "Attach Listener" 12/10/11 13:23:39 java.lang.reflect.InvocationTargetException 
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:474) 
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:382) 
at sun.instrument.InstrumentationImpl.loadClassAndCallAgentmain(InstrumentationImpl.java:407) 
Caused by: java.lang.NullPointerException 
at org.netbeans.lib.profiler.server.ProfilerActivate15.getArchiveFile(ProfilerActivate15.java:40) 
at org.netbeans.lib.profiler.server.ProfilerActivate15.activate(ProfilerActivate15.java:61) 
at org.netbeans.lib.profiler.server.ProfilerActivate15.agentmain(ProfilerActivate15.java:26) 
... 6 more 
Agent failed to start!

Comment 1 Tomas Hurka 2013-06-10 12:03:31 UTC

See also bugs reported against VisualVM: http://bugs.sun.com/view_bug.do?bug_id=8000752 and https://java.net/jira/browse/VISUALVM-545

Comment 2 Tomas Hurka 2013-06-11 13:04:35 UTC

Fixed in profiler-main

changeset:   255536:dab860cc8e66
user:        Tomas Hurka <thurka@netbeans.org>
date:        Tue Jun 11 15:01:23 2013 +0200
summary:     bugfix #231027, ugly workaround for OC4J - try to use context class loader if system class loader did not work

Comment 3 Quality Engineering 2013-06-12 02:04:15 UTC

Integrated into 'main-golden', will be available in build *201306112301* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
Changeset: http://hg.netbeans.org/main-golden/rev/dab860cc8e66
User: Tomas Hurka <thurka@netbeans.org>
Log: bugfix #231027, ugly workaround for OC4J - try to use context class loader if system class loader did not work