Java HotSpot Virtual Machine

Iam new to use jni & C so this is a simple question for you.

I got this:
JNIEXPORT void JNICALL test(JNIEnv *env, jobject obj, jbooleanArray y){
}

the native methode to call is this: callMe(char [50])

I have tried with this, but it's not working:
char *x = env->GetBooleanArrayElements(y,0);
callMe(x);