diff -r 2c3cc4b01880 -r c16ac7a2eba4 src/hotspot/share/jfr/recorder/storage/jfrMemorySpace.inline.hpp
--- a/src/hotspot/share/jfr/recorder/storage/jfrMemorySpace.inline.hpp	Wed Oct 30 16:14:56 2019 +0100
+++ b/src/hotspot/share/jfr/recorder/storage/jfrMemorySpace.inline.hpp	Wed Oct 30 19:43:52 2019 +0100
@@ -141,6 +141,7 @@
   }
   assert(t->empty(), "invariant");
   assert(!t->retired(), "invariant");
+  assert(!t->excluded(), "invariant");
   assert(t->identity() == NULL, "invariant");
   if (!should_populate_cache()) {
     remove_free(t);