jfieldID jrngstream_bind;
RngStream jrngstream_to_native(JNIEnv *env, jobject jrngstream) {
RngStream rngstream = (RngStream)(intptr_t)env->GetLongField(jrngstream, jrngstream_bind);
if (!rngstream) {
jxbt_throw_notbound(env, "rngstream", jrngstream);
jfieldID jrngstream_bind;
RngStream jrngstream_to_native(JNIEnv *env, jobject jrngstream) {
RngStream rngstream = (RngStream)(intptr_t)env->GetLongField(jrngstream, jrngstream_bind);
if (!rngstream) {
jxbt_throw_notbound(env, "rngstream", jrngstream);