--- /dev/null	2017-11-09 09:38:01.297999907 +0100
+++ new/src/jdk.jfr/share/classes/jdk/jfr/consumer/RecordedThreadGroup.java	2018-04-09 15:49:58.826852462 +0200
@@ -0,0 +1,70 @@
+/*
+ * 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package jdk.jfr.consumer;
+
+import java.util.List;
+
+import jdk.jfr.ValueDescriptor;
+import jdk.jfr.internal.Type;
+
+/**
+ * A recorded Java thread group.
+ *
+ * @since 9
+ */
+public final class RecordedThreadGroup extends RecordedObject {
+
+    static ObjectFactory<RecordedThreadGroup> createFactory(Type type, TimeConverter timeConverter) {
+        return new ObjectFactory<RecordedThreadGroup>(type) {
+            @Override
+            RecordedThreadGroup createTyped(List<ValueDescriptor> desc, long id, Object[] object) {
+                return new RecordedThreadGroup(desc, object, timeConverter);
+            }
+        };
+    }
+
+    private RecordedThreadGroup(List<ValueDescriptor> descriptors, Object[] objects, TimeConverter timeConverter) {
+        super(descriptors, objects, timeConverter);
+    }
+
+    /**
+     * Returns the name of the thread group, or {@code null} if not available.
+     *
+     * @return the thread group name, or {@code null} if not available
+     */
+    public String getName() {
+        return getTyped("name", String.class, null);
+    }
+
+    /**
+     * Returns the parent thread group, or {@code null} if not available.
+     *
+     * @return parent thread group, or {@code null} if not available
+     */
+    public RecordedThreadGroup getParent() {
+        return getTyped("parent", RecordedThreadGroup.class, null);
+    }
+}