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From "Tom Hobbs" <tom.ho...@sucfin.com>
Subject RE: Finding Service Registrars on Linux
Date Fri, 09 Oct 2009 14:33:53 GMT
Oh course, yes, you're right.

I removed reggie.jar from the CP in Eclipse and added the following as
an environment variable.


Eclipse is now happy and runs fine.  Hurrah!  So, thinking I (actually,
Gregg) have discovered some problem with my NetBeans projects which has
been masked by having a really heavy classpath; I create a new one.

Want more confusion?

Removing all the Jini JARs apart from jini-core.jar, jini-ext.jar and
sun-util.jar from the classpath I execute the same code again.  This
time expecting it to fail since this new NetBeans project doesn't have
the PreferredClassProvider env variable set.

But it still works in NetBeans.  Is there some fundamental RMI
doo-hickey thing that's different between the two IDEs?  Or am I missing
something so obvious that everyone thinks I've checked it already?

Thanks (again) go to Gregg for helping dig me out of this hole.


-----Original Message-----
From: Gregg Wonderly [mailto:gregg@wonderly.org] 
Sent: 09 October 2009 15:05
To: river-dev@incubator.apache.org
Subject: Re: Finding Service Registrars on Linux

Tom Hobbs wrote:
> The plot thickens.

> Exception in thread "main" java.lang.IllegalAccessError: class
> com.sun.jini.reggie.RegistrarImpl_Stub cannot access its
> com.sun.jini.reggie.Registrar

Stubs are being used, so that implies to me, that the JDK version is an

> 	at java.lang.ClassLoader.defineClass1(Native Method)
> 	at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
> 	at
> 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
> 	at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
> 	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
> 	at java.lang.Class.forName0(Native Method)
> 	at java.lang.Class.forName(Class.java:247)
> 	at
> sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:434)
> 	at
> sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)

I don't think you have jsk-resources.jar in your system classloader
and/or you don't have


in the environment so that right here, RMIClassLoader would be invoking 
net.jini.loader.ClassLoading.loadClass() as it should be.

> 	at
> java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
> 	at
> java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
> 	at
> 97)

This is what I can see in this stack trace.  Peter Jones might be able
provide more inside into why the _Stub is referenced.

Gregg Wonderly


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