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/rmi/server/UnicastRemoteObject/changeHostName/ChangeHostName.java
+++ b/test/jdk/java/rmi/server/UnicastRemoteObject/changeHostName/ChangeHostName.java
@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2001, 2012, 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 4180282
+ * @summary RMI needs a mechanism to dynamically change a VMs RMI
+ * serverHostname.  If the java.rmi.server.hostname property is
+ * changed dynamically, newly exported objects should be exported
+ * with the new hostname instead of the value of the
+ * java.rmi.server.hostname property when the first object was exported.
+ *
+ * @author Ann Wollrath
+ *
+ * @build ChangeHostName ChangeHostName_Stub
+ * @run main/othervm ChangeHostName
+ */
+
+import java.net.InetAddress;
+import java.rmi.Remote;
+import java.rmi.RemoteException;
+import java.rmi.server.RemoteObject;
+import java.rmi.server.UnicastRemoteObject;
+
+public class ChangeHostName
+    extends UnicastRemoteObject
+    implements Receiver
+{
+    public ChangeHostName() throws RemoteException {
+    }
+
+    public void receive(Remote obj) {
+        System.err.println("received: " + obj.toString());
+    }
+
+    public static void main(String[] args) throws Exception {
+
+        InetAddress localAddress = InetAddress.getLocalHost();
+        String[] hostlist = new String[] {
+            localAddress.getHostAddress(), localAddress.getHostName() };
+
+        for (int i = 0; i < hostlist.length; i++) {
+
+            System.setProperty("java.rmi.server.hostname", hostlist[i]);
+            Remote impl = new ChangeHostName();
+            System.err.println("\ncreated impl extending URO: " + impl);
+
+            Receiver stub = (Receiver) RemoteObject.toStub(impl);
+            System.err.println("stub for impl: " + stub);
+
+            System.err.println("invoking method on stub");
+            stub.receive(stub);
+
+            UnicastRemoteObject.unexportObject(impl, true);
+            System.err.println("unexported impl");
+
+            if (stub.toString().indexOf(hostlist[i]) >= 0) {
+                System.err.println("stub's ref contains hostname: " +
+                                   hostlist[i]);
+            } else {
+                throw new RuntimeException(
+                    "TEST FAILED: stub's ref doesn't contain hostname: " +
+                    hostlist[i]);
+            }
+        }
+        System.err.println("TEST PASSED");
+    }
+}
+
+interface Receiver extends Remote {
+    void receive(Remote obj) throws RemoteException;
+}