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/Statement/ClassForName/ClassForName.java

@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2016, 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.
+ */
+
+import java.beans.Expression;
+import java.beans.Statement;
+
+/**
+ * @test
+ * @bug 8146313
+ * @run main/othervm ClassForName
+ */
+public final class ClassForName {
+
+    static boolean initialized;
+
+    static final String[] classes = {
+            "A.A", "java.lang.String", "ClassForName$Bean", "sun.awt.SunToolkit"
+    };
+
+    static final ClassLoader appl = new Object() {}.getClass().getClassLoader();
+
+    static final ClassLoader[] loaders = {
+            String.class.getClassLoader(), null, appl
+    };
+
+    static boolean[] inits = {false, true};
+
+    public static void main(final String[] args) throws Exception {
+        // Check that the Class.forName(name, boolean, classloader) is executed
+        // when requested via JavaBeans
+        simpleTest();
+
+        // Check that the Class.forName and Expression returns the same classes
+        for (final String cls : classes) {
+            complexTest1Args(cls);
+            for (final ClassLoader loader : loaders) {
+                for (final boolean init : inits) {
+                    complexTest3Args(cls, loader, init);
+                }
+            }
+        }
+    }
+
+    private static void simpleTest() throws Exception {
+        // load the class without initialization
+        new Statement(Class.class, "forName", new Object[]{
+                "ClassForName$Bean", false, Bean.class.getClassLoader()
+        }).execute();
+        if (initialized) {
+            throw new RuntimeException("Should not be initialized");
+        }
+
+        // load the class and initialize it
+        new Statement(Class.class, "forName", new Object[]{
+                "ClassForName$Bean", true, Bean.class.getClassLoader()
+        }).execute();
+        if (!initialized) {
+            throw new RuntimeException("Should be initialized");
+        }
+    }
+
+    private static void complexTest1Args(final String cls) {
+        // load via standard Class.forName();
+        Class<?> classForName = null;
+        try {
+            classForName = Class.forName(cls);
+        } catch (final Exception ignored) {
+        }
+
+        // load via Expression.execute()
+        Class<?> classStatement = null;
+        try {
+            final Expression exp = new Expression(Class.class, "forName",
+                                                  new Object[]{
+                                                          cls
+                                                  });
+            exp.execute();
+            classStatement = (Class<?>) exp.getValue();
+        } catch (final Exception ignored) {
+        }
+        if (classForName != classStatement) {
+            System.err.println(classForName);
+            System.err.println(classStatement);
+            throw new RuntimeException();
+        }
+    }
+
+    private static void complexTest3Args(final String cls,
+                                         final ClassLoader loader,
+                                         final boolean init) {
+        // load via standard Class.forName();
+        Class<?> classForName = null;
+        Class<?> excForName = null;
+        try {
+            classForName = Class.forName(cls, init, loader);
+        } catch (final Exception e) {
+            excForName = e.getClass();
+        }
+
+        // load via Expression.execute()
+        Class<?> classStatement = null;
+        Class<?> excStatement = null;
+        try {
+            final Expression exp = new Expression(Class.class, "forName",
+                                                  new Object[]{
+                                                          cls, init, loader
+                                                  });
+            exp.execute();
+            classStatement = (Class<?>) exp.getValue();
+        } catch (final Exception e) {
+            excStatement = e.getClass();
+        }
+        if (classForName != classStatement) {
+            System.err.println(classForName);
+            System.err.println(classStatement);
+            throw new RuntimeException();
+        }
+        if (excForName != excStatement) {
+            System.err.println(excForName);
+            System.err.println(excStatement);
+            throw new RuntimeException();
+        }
+    }
+
+    public static final class Bean {
+
+        static {
+            initialized = true;
+        }
+    }
+}