JNI return random int

Question

I am trying to make a dll for a native java method that returns a random int i have made ones that work before but i cant get this one too m still new to programming with jni and i could use some help this is my c++ source code:

#include "IGNORE.h"
#include <windows.h>
#include <cstdlib> 
#include <ctime> 
#include <iostream>

JNIEXPORT jint JNICALL Java_NativeRandom_next__I
  (JNIEnv *env, jclass clazz, jint i){
    srand(time(0));
    return (jint) (rand()%i)
  }

JNIEXPORT jint JNICALL Java_NativeRandom_next__II
  (JNIEnv *env, jclass clazz, jint seed, jint i){
    srand((int)seed);
    return (jint) (rand()%i);
}

The error is: Exception in thread "main" java.lang.UnsatisfiedLinkError: C:##########: A dynamic link library (DLL) initialization routine failed

Thanks :)

Source for JAVA:

public class NativeRandom {
    public static native int next(int h);
    public static native int next(int h, int seed);

    public static void main(String[] args) {
        System.load("C:\\dlls\\RP.dll");
        System.out.println(next(4));
    }
}

Header file is:

/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class NativeRandom */

#ifndef _Included_NativeRandom
#define _Included_NativeRandom
#ifdef __cplusplus
extern "C" {
#endif
/*
 * Class:     NativeRandom
 * Method:    next
 * Signature: (I)I
 */
JNIEXPORT jint JNICALL Java_NativeRandom_next__I
  (JNIEnv *, jclass, jint);

/*
 * Class:     NativeRandom
 * Method:    next
 * Signature: (II)I
 */
JNIEXPORT jint JNICALL Java_NativeRandom_next__II
  (JNIEnv *, jclass, jint, jint);

#ifdef __cplusplus
}
#endif
#endif

Answer 1

Solution!!!! I fixed it by doing some research and through trial and error i figured out that my imports were messing up the DLL

Cpp file:

/* Replace "dll.h" with the name of your header */
#include "IGNORE.h"
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h> 

JNIEXPORT jint JNICALL Java_NativeRandom_next__I
  (JNIEnv *env, jclass clazz, jint i){
    srand(time(NULL));
    int n = (rand()%i)+1;
    return n;
  }

JNIEXPORT jint JNICALL Java_NativeRandom_next__II
  (JNIEnv *env, jclass clazz, jint seed, jint i){
    srand(seed);
    int n =(rand()%i)+1;
    return n;
}

Header file:

/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class NativeRandom */

    #ifndef _Included_NativeRandom
    #define _Included_NativeRandom
    #ifdef __cplusplus
    extern "C" {
    #endif
    /*
     * Class:     NativeRandom
     * Method:    next
     * Signature: (I)I
     */
    JNIEXPORT jint JNICALL Java_NativeRandom_next__I
      (JNIEnv *, jclass, jint);

    /*
     * Class:     NativeRandom
     * Method:    next
     * Signature: (II)I
     */
    JNIEXPORT jint JNICALL Java_NativeRandom_next__II
      (JNIEnv *, jclass, jint, jint);

    #ifdef __cplusplus
    }
    #endif
    #endif