Javacpp Not Working on IBM AIX

[deepakagrawal7]

Hi Samuel
After getting Javacpp work on linux and with caffe, I have to shift to a new environment ie IBM AIX.
Trying to compile a very basic example just to check the functionality:

prediction.h

#include cstring
#include cstdlib 
#include vector 
#include string 
#include iostream 
#include stdio.h
#include assert.h
using namespace std;
static inline int process(int a,int b)
{ printf("hello"); return a+b;}

PredictionClass.java

import org.bytedeco.javacpp.*;
import org.bytedeco.javacpp.annotation.*;

@Platform(include="prediction.h")
public class PredictClass {
    static {
    Loader.load();
    }
    public static native int process(int  a, int b);
    public static void main(String[] args) {
         int a=3,b=5;
      int c= process(a, b);
    System.out.println("sum is "+c);
    }
}

It compiles fine. But when I run

java -jar javacpp.jar PredictClass

It give the following error.

Generating /home/testing/jniPredictClass.cpp
Compiling /home/testing/aix-ppc64/libjniPredictClass.so
g++ -I/usr/java6_64/include /home/testing/jniPredictClass.cpp -Wall -O3 -fPIC -shared -s -o /home/testing/aix-ppc64/libjniPredictClass.so
/home/testing/jniPredictClass.cpp: In function 'void JNI_OnUnload(JavaVM*, void*)':
/home/testing/jniPredictClass.cpp:350:52: error: no matching function for call to 'JNIEnv_::DeleteWeakGlobalRef(_jclass*&)'
         env->DeleteWeakGlobalRef(JavaCPP_classes[i]);
                                                    ^
/home/testing/jniPredictClass.cpp:350:52: note: candidate is:
In file included from /home/testing/jniPredictClass.cpp:26:0:
/usr/java6_64/include/jni.h:648:7: note: void JNIEnv_::DeleteWeakGlobalRef(jweak)
  void DeleteWeakGlobalRef(jweak obj) { functions->DeleteWeakGlobalRef(this, obj); }
       ^
/usr/java6_64/include/jni.h:648:7: note:   no known conversion for argument 1 from 'jclass {aka _jclass*}' to 'jweak {aka _jweak*}'

It worked fine on Centos. Do you see any reason why it's showing it on AIX?

Thanks in advance

Regards

[saudet]

It should be fixed now, so please try again with the latest source and let me know how that goes.

And thanks for reporting!

[deepakagrawal7]

Hi, using the latest source that issue is resolved. However, it seems that there is some issue with AIX using the shared object file(.so).

Thanks

[saudet]

Right, could you let me know what command we should be executing to compile a shared library from a .cpp file under AIX? thanks!

[saudet]

Fix included in JavaCPP 1.1. If there is anything more that needs to be added to support AIX, please let me know, and thanks for reporting!