undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/jdk/java/rmi/reliability/benchmark/bench/serial/RepeatObjs.java

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+/*
+ * Copyright (c) 1999, 2008, 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.
+ */
+
+/*
+ *
+ */
+
+package bench.serial;
+
+import bench.Benchmark;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+
+/**
+ * Benchmark for testing speed of reads/writes of repeated objects.
+ */
+public class RepeatObjs implements Benchmark {
+
+    static class Node implements Serializable {
+    }
+
+    /**
+     * Write and read repeated objects to/from a stream.  The benchmark is run
+     * for a given number of batches.  Within each batch, a set of objects
+     * is written to and read from the stream.  The set of objects remains the
+     * same between batches (and the serialization streams are not reset) in
+     * order to test the speed of object -> wire handle lookup, and vice versa.
+     * Arguments: <# objects> <# cycles>
+     */
+    public long run(String[] args) throws Exception {
+        int size = Integer.parseInt(args[0]);
+        int nbatches = Integer.parseInt(args[1]);
+        Node[] objs = genObjs(size);
+        StreamBuffer sbuf = new StreamBuffer();
+        ObjectOutputStream oout =
+            new ObjectOutputStream(sbuf.getOutputStream());
+        ObjectInputStream oin =
+            new ObjectInputStream(sbuf.getInputStream());
+
+        doReps(oout, oin, sbuf, objs, 1);       // warmup
+
+        long start = System.currentTimeMillis();
+        doReps(oout, oin, sbuf, objs, nbatches);
+        return System.currentTimeMillis() - start;
+    }
+
+    /**
+     * Generate objects.
+     */
+    Node[] genObjs(int nobjs) {
+        Node[] objs = new Node[nobjs];
+        for (int i = 0; i < nobjs; i++)
+            objs[i] = new Node();
+        return objs;
+    }
+
+    /**
+     * Run benchmark for given number of batches.
+     */
+    void doReps(ObjectOutputStream oout, ObjectInputStream oin,
+                StreamBuffer sbuf, Node[] objs, int nbatches)
+        throws Exception
+    {
+        int nobjs = objs.length;
+        for (int i = 0; i < nbatches; i++) {
+            sbuf.reset();
+            for (int j = 0; j < nobjs; j++) {
+                oout.writeObject(objs[j]);
+            }
+            oout.flush();
+            for (int j = 0; j < nobjs; j++) {
+                oin.readObject();
+            }
+        }
+    }
+}