java – JNI. How to get jstring from jobobject and convert it to char*

This is what I have done so far:

JNIEXPORT jint JNICALL Java_Tier3_NativeMethods_totalPalletsIn(
            jnienv *env,jclass cls,jobject stat) {

jclass staticsitcs = (*env)->GetObjectClass(env,stat);

// Here I try to get it using the ID
jfieldID idDate = (*env)->GetFieldID(env,staticsitcs,"date","S");

jstring dateString = (jstring)(*env)->GetStringRegion(env,stat,idDate);

// Here converting whatever I get in jstring to char*
char* date = (*env)->GetStringUTFChars(env,dateString,0);

// Getting the 2nd field from the object
jfieldID idNumber = (*env)->GetFieldID(env,"amount","I");

jint amount = (*env)->GetDoubleField(env,idNumber);

// Calling C method
jint totalPallets = checkTotalPalletsIn(date,amount);

(*env)->ReleaseStringUTFChars(env,date);

return totalPallets;
}

What did I miss?

Solution

jstring dateString =(jstring)(* env) – > GetObjectField(env,idDate);

... everything was fine after that