🚀 go-pugleaf

I think you have the wrong declaration in your C code.
It should be like this:

JNIEXPORT void JNICALL Java_MyPackage_HelloWorld_displayHelloWorld
  (JNIEnv *, jobject);

You can see the Q&A in Borland's site:
http://www.borland.com/devsupport/jbuilder/qanda/541.html



Cb ���g��峹 <6hkaus$ngc3@forums.borland.com>...
>It seems that Borland has no interest to support JNI?
>
>
>Cb wrote in message <6heahh$hes23@forums.borland.com>...
>>I tried to call Native Method from JBuilder.  The example I tried is from
>>the
>>famous Java Tutorial book by Mary Campione and Kathy Walrath:
>>
>>1    Write the Java code
>>
>>class HelloWorld {
>>    public native void displayHelloWorld();
>>
>>    static {
>>        System.loadLibrary("hello");
>>    }
>>
>>}
>>
>>class Main {
>>    public static void main(String[] args) {
>>        new HelloWorld().displayHelloWorld();
>>    }
>>}
>>
>>2.    Complie the above Java code
>>3.    Create .h file using javah.  HelloWorld.h is created:
>>
>>/* DO NOT EDIT THIS FILE - it is machine generated */
>>#include <jni.h>
>>/* Header for class HelloWorld */
>>
>>#ifndef _Included_HelloWorld
>>#define _Included_HelloWorld
>>#ifdef __cplusplus
>>extern "C" {
>>#endif
>>/*
>>* Class:     HelloWorld
>>* Method:    displayHelloWorld
>>* Signature: ()V
>>*/
>>JNIEXPORT void JNICALL Java_HelloWorld_displayHelloWorld
>>  (JNIEnv *, jobject);
>>
>>#ifdef __cplusplus
>>}
>>#endif
>>#endif
>>
>>4.    Write the C code:
>>
>>#include <jni.h>
>>#include "HelloWorld.h"
>>#include <stdio.h>
>>
>>JNIEXPORT void JNICALL
>>Java_HelloWorld_displayHelloWorld(JNIEnv *env, jobject obj)
>>{
>>  printf("Hello world!\n");
>>  return;
>>}
>>
>>5.    Create DLL using Power++:
>>Start Power++ using Win32 DLL as the target; add the above C code into a
>>default project; Build it into HELLO.DLL, HELLO.LIB.  In the MAP file, I
>can
>>see Java_HelloWorld_displayHelloWorld was exported.  Copy the DLL and LIB
>to
>>\WINNT\SYSTEM32 directory (I use NT4)
>>
>>6.    Run Main.Class and alwasy get the following error:
>>java.lang.UnsatisfiedLinkError: displayHelloWorld
>>at native1.Main.main(Main.java:21)
>>
>>
>>Your advise will be highly appreciated!
>>
>>
>>
>
>