--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/recorder/checkpoint/types/jfrThreadState.cpp	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,82 @@
+/*
+* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
+* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+*
+* This code is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License version 2 only, as
+* published by the Free Software Foundation.
+*
+* This code is distributed in the hope that it will be useful, but WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+* version 2 for more details (a copy is included in the LICENSE file that
+* accompanied this code).
+*
+* You should have received a copy of the GNU General Public License version
+* 2 along with this work; if not, write to the Free Software Foundation,
+* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+*
+* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+* or visit www.oracle.com if you need additional information or have any
+* questions.
+*
+*/
+
+#include "precompiled.hpp"
+#include "jfr/recorder/checkpoint/types/jfrThreadState.hpp"
+#include "jfr/recorder/checkpoint/jfrCheckpointWriter.hpp"
+#include "jvmtifiles/jvmti.h"
+
+struct jvmti_thread_state {
+  u8 id;
+  const char* description;
+};
+
+static jvmti_thread_state states[] = {
+  {
+    JVMTI_JAVA_LANG_THREAD_STATE_NEW,
+    "STATE_NEW"
+  },
+  {
+    JVMTI_THREAD_STATE_TERMINATED,
+    "STATE_TERMINATED"
+  },
+  {
+    JVMTI_JAVA_LANG_THREAD_STATE_RUNNABLE,
+    "STATE_RUNNABLE"
+  },
+  {
+    (JVMTI_THREAD_STATE_ALIVE | JVMTI_THREAD_STATE_WAITING | JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT | JVMTI_THREAD_STATE_SLEEPING),
+    "STATE_SLEEPING"
+  },
+  {
+    (JVMTI_THREAD_STATE_ALIVE | JVMTI_THREAD_STATE_WAITING | JVMTI_THREAD_STATE_WAITING_INDEFINITELY | JVMTI_THREAD_STATE_IN_OBJECT_WAIT),
+    "STATE_IN_OBJECT_WAIT"
+  },
+  {
+    (JVMTI_THREAD_STATE_ALIVE | JVMTI_THREAD_STATE_WAITING | JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT | JVMTI_THREAD_STATE_IN_OBJECT_WAIT),
+    "STATE_IN_OBJECT_WAIT_TIMED"
+  },
+  {
+    (JVMTI_THREAD_STATE_ALIVE | JVMTI_THREAD_STATE_WAITING | JVMTI_THREAD_STATE_WAITING_INDEFINITELY | JVMTI_THREAD_STATE_PARKED),
+    "STATE_PARKED"
+  },
+  {
+    (JVMTI_THREAD_STATE_ALIVE | JVMTI_THREAD_STATE_WAITING | JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT | JVMTI_THREAD_STATE_PARKED),
+    "STATE_PARKED_TIMED"
+  },
+  {
+    JVMTI_JAVA_LANG_THREAD_STATE_BLOCKED,
+    "STATE_BLOCKED_ON_MONITOR_ENTER"
+  }
+};
+
+void JfrThreadState::serialize(JfrCheckpointWriter& writer) {
+  const u4 number_of_states = sizeof(states) / sizeof(jvmti_thread_state);
+  writer.write_count(number_of_states);
+  for (u4 i = 0; i < number_of_states; ++i) {
+    writer.write_key(states[i].id);
+    writer.write(states[i].description);
+  }
+}
+