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/awt/dnd/NotReallySerializableTest/NotReallySerializableTest.java
+++ b/test/jdk/java/awt/dnd/NotReallySerializableTest/NotReallySerializableTest.java
@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2000, 2023, 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
+  @key headful
+  @bug 4187912
+  @summary Test that some incorrectly written DnD code cannot hang the app
+  @run main NotReallySerializableTest
+*/
+
+import java.awt.Button;
+import java.awt.Cursor;
+import java.awt.Point;
+import java.awt.Toolkit;
+import java.awt.datatransfer.StringSelection;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DragGestureEvent;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragGestureRecognizer;
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DragSourceAdapter;
+import java.awt.dnd.DragSourceContext;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.DropTargetAdapter;
+import java.awt.dnd.DropTargetDropEvent;
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.io.OutputStream;
+import java.io.Serializable;
+import java.util.ArrayList;
+
+
+public class NotReallySerializableTest {
+    public static void main(String[] args) throws IOException {
+        Toolkit tk = Toolkit.getDefaultToolkit();
+
+        DragGestureRecognizer dgr = tk.createDragGestureRecognizer
+                (java.awt.dnd.MouseDragGestureRecognizer.class,
+                        DragSource.getDefaultDragSource(), new Button(),
+                        DnDConstants.ACTION_LINK, new TrickDragGestureListener());
+        DragGestureEvent dge = new DragGestureEvent
+                (dgr, DnDConstants.ACTION_LINK, new Point(0, 0),
+                        new TrickList());
+        DragSourceContext dsc = new DragSourceContext(dge,
+                Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR),
+                null, null, new TrickTransferable(),
+                new TrickDragSourceListener());
+        DropTarget dt = new DropTarget(new Button(),
+                new TrickDropTargetListener());
+
+        ObjectOutputStream stream = new ObjectOutputStream
+                (new OutputStream() {
+                    public void write(int b) {}
+                });
+
+        stream.writeObject(dgr);
+        stream.writeObject(dge);
+        stream.writeObject(dsc);
+        stream.writeObject(dt);
+
+        System.out.println("test passed");
+    }
+}
+
+class TrickList extends ArrayList implements Serializable {
+    Object trick = new Object();
+
+    TrickList() {
+        add(trick);
+    }
+}
+
+class TrickDragGestureListener implements DragGestureListener, Serializable {
+    Object trick = new Object();
+
+    public void dragGestureRecognized(DragGestureEvent dge) {}
+}
+
+class TrickTransferable extends StringSelection implements Serializable {
+    Object trick = new Object();
+
+    TrickTransferable() {
+        super("");
+    }
+}
+
+class TrickDragSourceListener extends DragSourceAdapter
+    implements Serializable
+{
+    Object trick = new Object();
+}
+
+class TrickDropTargetListener extends DropTargetAdapter
+    implements Serializable
+{
+    Object trick = new Object();
+
+    public void drop(DropTargetDropEvent dtde) {}
+}