--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/event/gc/configuration/GCHeapConfigurationEventVerifier.java	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2013, 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.event.gc.configuration;
+
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.jfr.EventVerifier;
+
+public abstract class GCHeapConfigurationEventVerifier extends EventVerifier {
+    public GCHeapConfigurationEventVerifier(RecordedEvent e) {
+        super(e);
+    }
+
+    protected void verifyMinHeapSizeIs(long expected) throws Exception {
+        verifyEquals("minSize", expected);
+    }
+
+    protected void verifyInitialHeapSizeIs(long expected) throws Exception {
+        verifyEquals("initialSize", expected);
+    }
+
+    protected void verifyMaxHeapSizeIs(long expected) throws Exception {
+        verifyEquals("maxSize", expected);
+    }
+
+    protected void verifyUsesCompressedOopsIs(boolean expected) throws Exception {
+        verifyEquals("usesCompressedOops", expected);
+    }
+
+    protected void verifyObjectAlignmentInBytesIs(int expected) throws Exception {
+        verifyEquals("objectAlignment", (long)expected);
+    }
+
+    protected void verifyHeapAddressBitsIs(int expected) throws Exception {
+        verifyEquals("heapAddressBits", (byte)expected);
+    }
+
+    protected void verifyCompressedOopModeIs(String expected) throws Exception {
+        verifyEquals("compressedOopsMode", expected);
+    }
+
+    protected void verifyCompressedOopModeContains(String expected) throws Exception {
+        verifyContains("compressedOopsMode", expected);
+    }
+
+}