Create ArrayList<String> Object in JNI

Question

I have a callback method in Java which is called by a native thread. One of the parameter of callback is an ArrayList object.

I am not able to get classref for ArrayList and its methods. Tried with "Ljava/util/ArrayList" but in vain. Please suggest a solution. thanks in advance

Answer 1

The class reference would be:

jclass cls = (*env)->FindClass(env, "java/util/ArrayList");

OR

jclass cls = (*env)->FindClass(env, "Ljava/util/ArrayList;");

You have an extra L in front of the java/util/ArrayList. In that case you also need to append a ;.