C++ dll cant locate C# dll and its dependacy in java

Question

0.00/5 (No votes)

See more:

I have created a C# project that uses a external dll as reference. I have then created a C++ program that add the C# generated dll as reference, so that I can Invoke the C# function from c++ and then use java jni method call. When I compile the application within visual studio it generate the cpp dll fine. But when I call the cpp dll from java the jvm crashes as the cpp dll cant find the C# dll reference. My question is how can I configure the C++ project so that it combines all the C# dll and its dependancy into one so that call the functions from the C# project from java using jni is successfull?

Posted 23-Nov-15 23:18pm

Member 12157311

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

KarstenK · Answer 1 · 2015-11-24T00:24:00

Solution 1

You need to load the C# from C++. Here is an article of the Dynamic Loading.

The internal problem is, that Java, C++ and C# have own runtime environments, so you need in the project 3 runtimes which must interact. I guess it will be slow and crappy.

BTW: I would recommand NOT using C# from JNI, but wrapping all in C++. Alternativly: think about moving the C# logic to Java,

Posted 24-Nov-15 0:24am

KarstenK

Comments

Member 12157311 24-Nov-15 8:13am

KarstenK I have a device which has been programmed using C# and I need to invoke those methods from java.This is the error that am getting
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (0xe0434352), pid=5988, tid=7480
#
# JRE version: 7.0-b147
# Java VM: Java HotSpot(TM) Client VM (21.0-b17 mixed mode, sharing windows-x86 )
# Problematic frame:
# C [KERNELBASE.dll+0x812f]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as: