src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/Threads.java

*** 146,10 ***
--- 146,11 ---
          virtualConstructor = new VirtualConstructor(db);
          // Add mappings for all known thread types
          virtualConstructor.addMapping("JavaThread", JavaThread.class);
          if (!VM.getVM().isCore()) {
              virtualConstructor.addMapping("CompilerThread", CompilerThread.class);
+             virtualConstructor.addMapping("TrainingReplayThread", TrainingReplayThread.class);
          }
          virtualConstructor.addMapping("JvmtiAgentThread", JvmtiAgentThread.class);
          virtualConstructor.addMapping("ServiceThread", ServiceThread.class);
          virtualConstructor.addMapping("MonitorDeflationThread", MonitorDeflationThread.class);
          virtualConstructor.addMapping("NotificationThread", NotificationThread.class);