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/beans/VetoableChangeSupport/Test6630275.java

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+/*
+ * Copyright (c) 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.
+ */
+
+/*
+ * @test
+ * @bug 6630275
+ * @summary Tests VetoableChangeSupport specification
+ * @author Sergey Malenkov
+ */
+
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyVetoException;
+import java.beans.VetoableChangeListener;
+import java.beans.VetoableChangeSupport;
+
+public class Test6630275 {
+    private static final String PROPERTY = "property"; // NON-NLS: predefined property name
+
+    public static void main(String[] args) {
+        CheckListener first = new CheckListener(false);
+        CheckListener second = new CheckListener(true);
+        CheckListener third = new CheckListener(false);
+
+        VetoableChangeSupport vcs = new VetoableChangeSupport(Test6630275.class);
+        vcs.addVetoableChangeListener(first);
+        vcs.addVetoableChangeListener(PROPERTY, first);
+        vcs.addVetoableChangeListener(PROPERTY, second);
+        vcs.addVetoableChangeListener(PROPERTY, third);
+        try {
+            vcs.fireVetoableChange(PROPERTY, true, false);
+        } catch (PropertyVetoException exception) {
+            first.validate();
+            second.validate();
+            third.validate();
+            return; // expected exception
+        }
+        throw new Error("exception should be thrown");
+    }
+
+    private static class CheckListener implements VetoableChangeListener {
+        private final boolean veto;
+        private boolean odd; // even/odd check for notification
+
+        private CheckListener(boolean veto) {
+            this.veto = veto;
+        }
+
+        private void validate() {
+            if (this.veto != this.odd)
+                throw new Error(this.odd
+                        ? "undo event expected"
+                        : "unexpected undo event");
+        }
+
+        public void vetoableChange(PropertyChangeEvent event) throws PropertyVetoException {
+            this.odd = !this.odd;
+            if (this.veto)
+                throw new PropertyVetoException("disable all changes", event);
+        }
+    }
+}