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Have anyone try this code?

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Did any one try the following example code from the link http://www-900.ibm.com/developerWorks/cn/education/java/j-jni/tutorial_eng/index3.html
I have try to compile and run it under linux...but it has core dump problem
Did anyone successfully compile and run it?
#include <jni.h>
#ifdef _WIN32
#define PATH_SEPARATOR ';'
#define PATH_SEPARATOR ':'
int main()
JavaVMOption options[1];
JNIEnv *env;
JavaVM *jvm;
JavaVMInitArgs vm_args;
long status;
jclass cls;
jmethodID mid;
jint square;
jboolean not;
options[0].optionString = "-java.class.path=.";
memset(&vm_args, 0, sizeof(vm_args));
vm_args.version = JNI_VERSION_1_2;
vm_args.nOptions = 1;
vm_args.options = options;
status = JNI_CreateJavaVM(&jvm, (void **)&env, &vm_args);
if (status != JNI_ERR)
cls = (*env)->FindClass(env, "Sample2");
if(cls !=0)
{ mid = (*env)->GetStaticMethodID(env, cls, "intMethod", "(I)I");
if(mid !=0)
{ square = (*env)->CallStaticIntMethod(env, cls, mid, 5);
printf("Result of intMethod: %d\n", square);
mid = (*env)->GetStaticMethodID(env, cls, "booleanMethod", "(Z)Z");
if(mid !=0)
{ not = (*env)->CallStaticBooleanMethod(env, cls, mid, 1);
printf("Result of booleanMethod: %d\n", not);
return 0;
return -1;
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