Help needed on Re: (Review ID: 95805) JNI panic: JNI received a null class

[cunxiao@xxxxxxxxxx (cunxiao@xxxxxxxxxx)]

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I was asked to send you this so you can provide me some clue on this .....

Regards,

John Xiao
cunxiao@xxxxxxxxxx
(408) 463-4991


---------------------- Forwarded by John Xiao/Santa Teresa/IBM on 09/29/99 01:48
PM ---------------------------

John Xiao
09/29/99 01:47 PM

To:   Kevin Ryan <kevin.ryan@xxxxxxxxxxx>
cc:   John Hsu/Santa Teresa/IBM@IBMUS, George Huang/Santa Teresa/IBM@IBMUS
From: John Xiao/Santa Teresa/IBM@IBMUS
Subject:  Re: (Review ID: 95805) JNI panic: JNI received a null class  (Document
      link: John Xiao)


Kevin,
Here is the program for duplicate the problem:
Compile the two files and move compiled JTZ.class to subdirectory "t" of the
current directory
and run

java Test

You do not need a DLL since JVM crashes before calling the native code.

Thanks for your help. We need this very badly for a code release.


(See attached file: JTZ.java)(See attached file: Test.java)


John Xiao
cunxiao@xxxxxxxxxx
(408) 463-4991


Kevin Ryan <kevin.ryan@xxxxxxxxxxx> on 09/28/99 11:11:09 AM

To:   John Xiao/Santa Teresa/IBM@IBMUS
cc:
Subject:  Re: (Review ID: 95805) JNI panic: JNI received a null class




Thanks for your comments, but you need to be a lot more specific if we're to
attempt to help.

Please provide a test case, and exact steps to reproduce.

Alternatively, you might want to post your message to Advanced Java or
the Java Native list.  (advanced-java@xxxxxxxxxxxxxxxx or
java-native@xxxxxxxxxxx)

Best Regards,
KR
----------------- Original Bug Report-------------------

category : java
subcategory : native_interface
type : bug
synopsis : JNI panic: JNI received a null class
description : I have a ClassLoader object to load a set of classes.
I cannot invoked native methods from a class loaded by
the loader. I got the JNI panic message.
If I make those classes accessible from CLASSPATH,
there is no such problem.
Any suggestion?
workaround :
suggested_val :
cust_name : John Xiao
cust_email : cunxiao@xxxxxxxxxx
jdcid : cunxiao
keyword : webbug
company : IBM
release : 1.1.8
hardware : x86
OSversion : win_nt_4.0
priority : 4
bugtraqID : 0
dateCreated : 1999-09-27 18:28:09.0
dateEvaluated : 1999-9-28 11:4:57





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