src/hotspot/share/prims/jvmtiTagMap.cpp

@@ -2304,14 +2304,15 @@
  
  bool StackRefCollector::report_native_stack_refs(jmethodID method) {
    _blk->set_context(_thread_tag, _tid, _depth, method);
    if (_is_top_frame) {
      // JNI locals for the top frame.
-     assert(_java_thread != nullptr, "sanity");
-     _java_thread->active_handles()->oops_do(_blk);
-     if (_blk->stopped()) {
-       return false;
+     if (_java_thread != nullptr) {
+       _java_thread->active_handles()->oops_do(_blk);
+       if (_blk->stopped()) {
+         return false;
+       }
      }
    } else {
      if (_last_entry_frame != nullptr) {
        // JNI locals for the entry frame.
        assert(_last_entry_frame->is_entry_frame(), "checking");