diff -r efc459cf351e -r 2d91c9a4f409 test/hotspot/jtreg/gc/metaspace/PerfCounter.java
--- a/test/hotspot/jtreg/gc/metaspace/PerfCounter.java	Fri Nov 24 17:19:47 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,68 +0,0 @@
-/*
- * Copyright (c) 2013, 2015, 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.
- */
-
-import sun.jvmstat.monitor.Monitor;
-
-/**
- * Represents a performance counter in the JVM.
- *
- * See http://openjdk.java.net/groups/hotspot/docs/Serviceability.html#bjvmstat
- * for more details about performance counters.
- */
-public class PerfCounter {
-    private final Monitor monitor;
-    private final String name;
-
-    PerfCounter(Monitor monitor, String name) {
-        this.monitor = monitor;
-        this.name = name;
-    }
-
-    /**
-     * Returns the value of this performance counter as a long.
-     *
-     * @return The long value of this performance counter
-     * @throws RuntimeException If the value of the performance counter isn't a long
-     */
-    public long longValue() {
-        Object value = monitor.getValue();
-        if (value instanceof Long) {
-            return ((Long) value).longValue();
-        }
-        throw new RuntimeException("Expected " + monitor.getName() + " to have a long value");
-    }
-
-    /**
-     * Returns the name of the performance counter.
-     *
-     * @return The name of the performance counter.
-     */
-    public String getName() {
-        return name;
-    }
-
-    @Override
-    public String toString() {
-        return name;
-    }
-}