JNIEXPORT jint JNICALL Java_es_gva_cit_jogr_JNIBase_getRefCountNat (JNIEnv *env, jobject obj, jlong cPtr){ OGRDataSource *ds = (OGRDataSource *) 0 ; int res = -1; ds = *(OGRDataSource **)&cPtr; if(ds!=NULL){ res = ds->GetRefCount(); } return res; }