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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/io/Serializable/subclass/SubclassTest.java
+++ b/test/jdk/java/io/Serializable/subclass/SubclassTest.java
@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 1998, 2024, 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.
+ */
+
+/*
+ * @test
+ * @bug 4100915
+ * @summary Verify that [write/read]ObjectOverride methods get called.
+ *          Test verifies that ALL methods to write an object can
+ *          be overridden. However, the testing for reading an object
+ *          is incomplete. Only test that readObjectOverride is called.
+ *          An entire protocol would need to be implemented and written
+ *          out before being able to test the input side of the API.
+ *
+ * @compile AbstractObjectInputStream.java AbstractObjectOutputStream.java
+ * @compile XObjectInputStream.java XObjectOutputStream.java
+ * @compile SubclassTest.java
+ * @run main SubclassTest
+ */
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.ObjectStreamField;
+import java.io.Serializable;
+
+/**
+ * Test if customized readObject and writeObject are called.
+ */
+class B implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    public int publicIntField;
+    public static int numWriteObjectCalled = 0;
+    B(int v) {
+        publicIntField = v;
+    }
+    private void writeObject(ObjectOutputStream os) throws IOException {
+        numWriteObjectCalled++;
+        os.defaultWriteObject();
+    }
+
+    private void readObject(ObjectInputStream is)
+        throws IOException, ClassNotFoundException
+    {
+        is.defaultReadObject();
+    }
+
+};
+
+/**
+ * Test PutFields interface.
+ */
+
+class C implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    public int xx1;
+    public int xx2;
+    private static final ObjectStreamField[] serialPersistentFields = {
+        new ObjectStreamField("x1", Integer.TYPE),
+        new ObjectStreamField("x2", Integer.TYPE),
+        new ObjectStreamField("x3", Integer.TYPE),
+        new ObjectStreamField("x4", Integer.TYPE)
+    };
+    C() {
+        xx1 = 300;
+        xx2 = 400;
+    }
+
+    private void writeObject(ObjectOutputStream os) throws IOException {
+        ObjectOutputStream.PutField putFields = os.putFields();
+        putFields.put("x1", xx1);
+        putFields.put("x2", xx2);
+        putFields.put("x3", xx1 * 2);
+        putFields.put("x4", xx2 * 2);
+        os.writeFields();
+    }
+
+};
+
+
+class A implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    public int  publicIntField;
+    public long publicLongField;
+    public B    publicBField;
+    public B[]  publicBArray = { new B(4), new B(6)};
+    public C    publicCField;
+
+    public A() {
+        publicIntField = 3;
+        publicLongField = 10L;
+        publicBField = new B(5);
+        publicCField = new C();
+    }
+};
+
+public class SubclassTest {
+    public static void main(String argv[])
+        throws IOException, ClassNotFoundException
+    {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream(20);
+        XObjectOutputStream os = null;
+        os = new XObjectOutputStream(baos);
+        os.writeObject(new A());
+        os.close();
+        if (B.numWriteObjectCalled != 3)
+            throw new Error("Expected B.writeObject() to be called 3 times;" +
+                            " observed only " + B.numWriteObjectCalled + " times");
+
+        XObjectInputStream is =
+            new XObjectInputStream(new ByteArrayInputStream(baos.toByteArray()));
+        try {
+            A a = (A)is.readObject();
+            throw new Error("Expected readObjectOverride() to be called and throw IOException(not implemented)");
+        } catch (IOException e) {
+        }
+        is.close();
+    }
+};