--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/gc/stress/gcbasher/TestGCBasher.java Thu Oct 06 16:32:46 2016 +0200
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2016, 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 java.io.IOException;
+import java.net.URI;
+import java.nio.file.FileSystems;
+import java.nio.file.FileSystem;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.HashMap;
+import java.util.stream.Stream;
+
+public class TestGCBasher {
+ private static void parseClassFiles() throws IOException {
+ HashMap<String, ClassInfo> deps = new HashMap<>();
+
+ FileSystem fs = FileSystems.getFileSystem(URI.create("jrt:/"));
+ Stream<Path> s = Files.walk(fs.getPath("/"));
+ for (Path p : (Iterable<Path>)s::iterator) {
+ if (p.toString().endsWith(".class")) {
+ byte[] data = Files.readAllBytes(p);
+ Decompiler d = new Decompiler(data);
+ ClassInfo ci = d.getClassInfo();
+ deps.put(ci.getName(), ci);
+ }
+ }
+ }
+
+ public static void run(String[] args) throws IOException {
+ if (args.length != 1) {
+ System.err.println("Usage: TestGCBasher <duration-ms>");
+ return;
+ }
+
+ long durationMillis = Long.valueOf(args[0]);
+ long start = System.currentTimeMillis();
+ while (System.currentTimeMillis() - start < durationMillis) {
+ parseClassFiles();
+ }
+ }
+}