When passing a byte array from c++ to Java using the director feature, the generated jni code does not release a temporary byte array.
This is the typemap specified in Java.swg:
%typemap(directorin, descriptor="[B") (char *STRING, size_t LENGTH) {
jbyteArray jb = (jenv)->NewByteArray($2);
(jenv)->SetByteArrayRegion(jb, 0, $2, (jbyte *)$1);
$input = jb;
}
%typemap(directorargout) (char *STRING, size_t LENGTH)
%{(jenv)->GetByteArrayRegion($input, 0, $2, (jbyte *)$1); %}
Notice that the call to NewByteArray doesn't contain a symmetric release logic as the SetByteArrayRegion/GetByteArrayRegion does.
Closes#386
ea1b6e8ed5