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/lang/reflect/classInitialization/ExceptionInClassInitialization.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2021, 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
+ * @build Initializer Test ExceptionInClassInitialization
+ * @run main ExceptionInClassInitialization
+ * @summary ensure InvocationTargetException thrown due to the initialization of
+ *          the declaring class wrapping with the proper cause
+ */
+
+import java.lang.reflect.InvocationTargetException;
+
+public class ExceptionInClassInitialization {
+    public static void main(String... argv) throws ReflectiveOperationException {
+        Class<?> c = Class.forName("Initializer");
+        testExecMethod(c);
+        testFieldAccess(c);
+    }
+
+    static void testExecMethod(Class<?> cls) throws ReflectiveOperationException {
+        try {
+            cls.getDeclaredMethod("execMethod").invoke(null);
+            throw new RuntimeException("InvocationTargetException not thrown");
+        } catch (InvocationTargetException e) {
+            // InvocationTargetException wraps the exception that was thrown while reflection.
+            Throwable t = e.getCause();
+            if (t instanceof ExceptionInInitializerError eiie) {
+                if (eiie.getCause() instanceof MyException) {
+                    return;
+                }
+                throw new RuntimeException("ExceptionInInitializerError due to other exception than MyException!", eiie);
+            }
+            throw new RuntimeException("InvocationTargetException was thrown not due to error while initialization!", e);
+        }
+    }
+
+    static void testFieldAccess(Class<?> cls) throws ReflectiveOperationException {
+        try {
+            cls.getDeclaredMethod("fieldAccess").invoke(null);
+            throw new RuntimeException("InvocationTargetException not thrown");
+        } catch (InvocationTargetException e) {
+            // the class initialization was run and failed.  NoClassDefFoundError
+            // should be thrown in this second attempt.
+            Throwable t = e.getCause();
+            if (t instanceof NoClassDefFoundError ncdfe) {
+                t = t.getCause();
+                if (t instanceof ExceptionInInitializerError eiie) {
+                    return;
+                }
+            }
+            throw new RuntimeException("InvocationTargetException was thrown not due to error while initialization!", e);
+        }
+    }
+
+}