Re: JNI interoperating with .net DLL?

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <>
Sat, 09 Jun 2007 14:15:20 -0400
Tan Choong Leong wrote:

My solution is:

1. java (JNI) C++ Win32 DLL using LoadLibrary(), GetProcAddress() to
call 2.
2. CLR DLL which export extern "C" function API to call 3.
3. Actual .Net DLL in question.

It works by calling as a standalone java class.

Next, what I need is to call functions in this class from a TOMCAT
environment. This fails with unknown reason.

I realised that if I remov the "Actual .NET" function call in the CLR
DLL in step 2. with some dummy data, there is no problem in the Tomcat

What does the actual implementation do ?

It just beats me that why as a standalone Java class it works but not in
a Tomcat environment.

1. Could it be some security issue?
2. or path problem?

All Dlls are in C:/windows/system32

An excerpt from the error logs:
# An unexpected error has been detected by Java Runtime Environment:
# Internal Error (0xe0434f4d), pid=508, tid=3964
# Java VM: Java HotSpot(TM) Client VM (1.6.0_01-b06 mixed mode, sharing)
# Problematic frame:
# C [kernel32.dll+0x12a5b]
# If you would like to submit a bug report, please visit:

--------------- T H R E A D ---------------

Current thread (0x03704c00): JavaThread "http-8081-1" daemon
[_thread_in_native, id=3964]

siginfo: ExceptionCode=0xe0434f4d, ExceptionInformation=0x80070002

EAX=0x04e4eb3c, EBX=0x00083a60, ECX=0x00000000, EDX=0x00000025
ESP=0x04e4eb38, EBP=0x04e4eb8c, ESI=0x04e4ebc8, EDI=0xe0434f4d
EIP=0x7c812a5b, EFLAGS=0x00000202
Blah blah blah.....


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