JNIEXPORT void JNICALL Java_test_JNITest_printBooleans(JNIEnv * env, jobject obj, jbooleanArray array) {
    jint length = env->GetArrayLength(array);
    jboolean* jbarray = env->GetBooleanArrayElements(array, NULL);
    bool* boolArray = new bool[length];
    for(int i = 0; i < length; i++) {
        printf("%d, ", jbarray[i]);
        boolArray[i] = (jbarray[i] == JNI_TRUE);
    }
    printf("\n==================\n");
    for(int i = 0; i < length; i++) {
        printf("%i, ", boolArray[i]);
    }
}