UnsatisfiedLinkError in JNI

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I want to call C# code from Java using JNI
JNI call C++ Library,then C++ call C#

My Code is here

package javacsharptest;

public class JavaCSharpTest {
  public native void display();
    static {
        System.loadLibrary("JavaCSharpTest");
    }
    public static void main (String[] args) {
            new JavaCSharpTest().display();
    }
}

I got this error,

Exception in thread "main" java.lang.UnsatisfiedLinkError: javacsharptest.JavaCSharpTest.display()V
at javacsharptest.JavaCSharpTest.display(Native Method)
at javacsharptest.JavaCSharpTest.main(JavaCSharpTest.java:18)

I've already put JavaCSharpTest.dll into C:\Windows\System32

Please Help me:confused:

Posted 2-Jan-11 18:11pm

Saw Thanda Oo

Updated 2-Jan-11 18:15pm

vivekse

v2

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3 solutions

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Espen Harlinn · Answer 1 · 2011-01-02T20:44:00

Solution 1

Take a look at this:
Java Native Interface: Programmer's Guide and Specification[^]

You need proper stdcall function export entries in your dll

Regards
Espen Harlinn

Posted 2-Jan-11 20:44pm

Espen Harlinn

stark9000 · Answer 2 · 2011-06-11T23:26:00

Solution 2

when you you use this command :

"System.loadLibrary("JavaCSharpTest");"
loadLibrary

then the dll file need to be in , x:\Program Files\Java\jdk1.6.0_20\bin

else you can use , System.load("x:\JavaCSharpTest.dll");

https://sites.google.com/site/stark9000/java-native-interface-helloworld

Posted 11-Jun-11 23:26pm

stark9000

Updated 11-Jun-11 23:28pm

v2

Richard MacCutchan · Answer 3 · 2011-06-12T01:03:00

Solution 3

Check that your function definition in the C library has been correctly defined (usually by running the javah[^] command against your Java class file.

Posted 12-Jun-11 1:03am

Richard MacCutchan