247 lines
12 KiB
Java
247 lines
12 KiB
Java
/*
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.*;
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import java.util.*;
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/*
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* @test
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* @bug 6911258 6962571 6963622 6991528 7005628 8012044
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* @summary Basic tests of suppressed exceptions
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* @author Joseph D. Darcy
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*/
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public class SuppressedExceptions {
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private static String message = "Bad suppressed exception information";
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public static void main(String... args) throws Exception {
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noSelfSuppression();
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basicSupressionTest();
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serializationTest();
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selfReference();
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noModification();
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initCausePlumbing();
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}
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private static void noSelfSuppression() {
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Throwable throwable = new Throwable();
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try {
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throwable.addSuppressed(throwable);
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throw new RuntimeException("IllegalArgumentException for self-suppresion not thrown.");
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} catch (IllegalArgumentException iae) {
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// Expected to be here
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if (iae.getCause() != throwable)
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throw new RuntimeException("Bad cause after self-suppresion.");
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}
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}
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private static void basicSupressionTest() {
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Throwable throwable = new Throwable();
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RuntimeException suppressed = new RuntimeException("A suppressed exception.");
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AssertionError repressed = new AssertionError("A repressed error.");
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Throwable[] t0 = throwable.getSuppressed();
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if (t0.length != 0) {
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throw new RuntimeException(message);
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}
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throwable.printStackTrace();
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throwable.addSuppressed(suppressed);
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Throwable[] t1 = throwable.getSuppressed();
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if (t1.length != 1 ||
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t1[0] != suppressed) {throw new RuntimeException(message);
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}
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throwable.printStackTrace();
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throwable.addSuppressed(repressed);
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Throwable[] t2 = throwable.getSuppressed();
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if (t2.length != 2 ||
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t2[0] != suppressed ||
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t2[1] != repressed) {
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throw new RuntimeException(message);
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}
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throwable.printStackTrace();
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}
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private static void serializationTest() throws Exception {
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/*
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* Bytes of the serial form of
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*
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* (new Throwable())setStackTrace(new StackTraceElement[0])
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*
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* from JDK 6; suppressedException field will be missing and
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* thus default to null upon deserialization.
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*/
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byte[] bytes = {
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(byte)0xac, (byte)0xed, (byte)0x00, (byte)0x05, (byte)0x73, (byte)0x72, (byte)0x00, (byte)0x13,
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(byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2e, (byte)0x6c, (byte)0x61, (byte)0x6e,
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(byte)0x67, (byte)0x2e, (byte)0x54, (byte)0x68, (byte)0x72, (byte)0x6f, (byte)0x77, (byte)0x61,
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(byte)0x62, (byte)0x6c, (byte)0x65, (byte)0xd5, (byte)0xc6, (byte)0x35, (byte)0x27, (byte)0x39,
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(byte)0x77, (byte)0xb8, (byte)0xcb, (byte)0x03, (byte)0x00, (byte)0x03, (byte)0x4c, (byte)0x00,
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(byte)0x05, (byte)0x63, (byte)0x61, (byte)0x75, (byte)0x73, (byte)0x65, (byte)0x74, (byte)0x00,
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(byte)0x15, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c,
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(byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x54, (byte)0x68, (byte)0x72, (byte)0x6f,
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(byte)0x77, (byte)0x61, (byte)0x62, (byte)0x6c, (byte)0x65, (byte)0x3b, (byte)0x4c, (byte)0x00,
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(byte)0x0d, (byte)0x64, (byte)0x65, (byte)0x74, (byte)0x61, (byte)0x69, (byte)0x6c, (byte)0x4d,
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(byte)0x65, (byte)0x73, (byte)0x73, (byte)0x61, (byte)0x67, (byte)0x65, (byte)0x74, (byte)0x00,
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(byte)0x12, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c,
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(byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53, (byte)0x74, (byte)0x72, (byte)0x69,
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(byte)0x6e, (byte)0x67, (byte)0x3b, (byte)0x5b, (byte)0x00, (byte)0x0a, (byte)0x73, (byte)0x74,
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(byte)0x61, (byte)0x63, (byte)0x6b, (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, (byte)0x65,
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(byte)0x74, (byte)0x00, (byte)0x1e, (byte)0x5b, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76,
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(byte)0x61, (byte)0x2f, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53,
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(byte)0x74, (byte)0x61, (byte)0x63, (byte)0x6b, (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63,
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(byte)0x65, (byte)0x45, (byte)0x6c, (byte)0x65, (byte)0x6d, (byte)0x65, (byte)0x6e, (byte)0x74,
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(byte)0x3b, (byte)0x78, (byte)0x70, (byte)0x71, (byte)0x00, (byte)0x7e, (byte)0x00, (byte)0x04,
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(byte)0x70, (byte)0x75, (byte)0x72, (byte)0x00, (byte)0x1e, (byte)0x5b, (byte)0x4c, (byte)0x6a,
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(byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2e, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67,
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(byte)0x2e, (byte)0x53, (byte)0x74, (byte)0x61, (byte)0x63, (byte)0x6b, (byte)0x54, (byte)0x72,
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(byte)0x61, (byte)0x63, (byte)0x65, (byte)0x45, (byte)0x6c, (byte)0x65, (byte)0x6d, (byte)0x65,
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(byte)0x6e, (byte)0x74, (byte)0x3b, (byte)0x02, (byte)0x46, (byte)0x2a, (byte)0x3c, (byte)0x3c,
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(byte)0xfd, (byte)0x22, (byte)0x39, (byte)0x02, (byte)0x00, (byte)0x00, (byte)0x78, (byte)0x70,
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(byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x78, (byte)0xac, (byte)0xed, (byte)0x00,
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(byte)0x05, (byte)0x73, (byte)0x72, (byte)0x00, (byte)0x13, (byte)0x6a, (byte)0x61, (byte)0x76,
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(byte)0x61, (byte)0x2e, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2e, (byte)0x54,
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(byte)0x68, (byte)0x72, (byte)0x6f, (byte)0x77, (byte)0x61, (byte)0x62, (byte)0x6c, (byte)0x65,
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(byte)0xd5, (byte)0xc6, (byte)0x35, (byte)0x27, (byte)0x39, (byte)0x77, (byte)0xb8, (byte)0xcb,
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(byte)0x03, (byte)0x00, (byte)0x03, (byte)0x4c, (byte)0x00, (byte)0x05, (byte)0x63, (byte)0x61,
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(byte)0x75, (byte)0x73, (byte)0x65, (byte)0x74, (byte)0x00, (byte)0x15, (byte)0x4c, (byte)0x6a,
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(byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67,
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(byte)0x2f, (byte)0x54, (byte)0x68, (byte)0x72, (byte)0x6f, (byte)0x77, (byte)0x61, (byte)0x62,
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(byte)0x6c, (byte)0x65, (byte)0x3b, (byte)0x4c, (byte)0x00, (byte)0x0d, (byte)0x64, (byte)0x65,
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(byte)0x74, (byte)0x61, (byte)0x69, (byte)0x6c, (byte)0x4d, (byte)0x65, (byte)0x73, (byte)0x73,
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(byte)0x61, (byte)0x67, (byte)0x65, (byte)0x74, (byte)0x00, (byte)0x12, (byte)0x4c, (byte)0x6a,
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(byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, (byte)0x6e, (byte)0x67, (byte)0x3b,
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(byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53, (byte)0x74, (byte)0x72, (byte)0x69,
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(byte)0x5b, (byte)0x00, (byte)0x0a, (byte)0x73, (byte)0x74, (byte)0x61, (byte)0x63, (byte)0x6b,
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(byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, (byte)0x65, (byte)0x74, (byte)0x00, (byte)0x1e,
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(byte)0x5b, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c,
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(byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53, (byte)0x74, (byte)0x61, (byte)0x63,
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(byte)0x6b, (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, (byte)0x65, (byte)0x45, (byte)0x6c,
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(byte)0x65, (byte)0x6d, (byte)0x65, (byte)0x6e, (byte)0x74, (byte)0x3b, (byte)0x78, (byte)0x70,
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(byte)0x71, (byte)0x00, (byte)0x7e, (byte)0x00, (byte)0x04, (byte)0x70, (byte)0x75, (byte)0x72,
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(byte)0x00, (byte)0x1e, (byte)0x5b, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61,
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(byte)0x2e, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2e, (byte)0x53, (byte)0x74,
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(byte)0x61, (byte)0x63, (byte)0x6b, (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, (byte)0x65,
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(byte)0x45, (byte)0x6c, (byte)0x65, (byte)0x6d, (byte)0x65, (byte)0x6e, (byte)0x74, (byte)0x3b,
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(byte)0x02, (byte)0x46, (byte)0x2a, (byte)0x3c, (byte)0x3c, (byte)0xfd, (byte)0x22, (byte)0x39,
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(byte)0x02, (byte)0x00, (byte)0x00, (byte)0x78, (byte)0x70,
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};
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try(ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
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ObjectInputStream ois = new ObjectInputStream(bais)) {
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Object o = ois.readObject();
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Throwable throwable = (Throwable) o;
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System.err.println("TESTING SERIALIZED EXCEPTION");
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Throwable[] t0 = throwable.getSuppressed();
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if (t0.length != 0) { // Will fail if t0 is null.
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throw new RuntimeException(message);
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}
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throwable.printStackTrace();
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}
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}
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private static void selfReference() {
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Throwable throwable1 = new RuntimeException();
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Throwable throwable2 = new AssertionError();
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throwable1.initCause(throwable2);
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throwable2.initCause(throwable1);
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throwable1.printStackTrace();
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throwable1.addSuppressed(throwable2);
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throwable2.addSuppressed(throwable1);
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throwable1.printStackTrace();
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}
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private static void noModification() {
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Throwable t = new NoSuppression(false);
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Throwable[] t0 = t.getSuppressed();
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if (t0.length != 0)
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throw new RuntimeException("Bad nonzero length of suppressed exceptions.");
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t.addSuppressed(new ArithmeticException());
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// Make sure a suppressed exception did *not* get added.
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t0 = t.getSuppressed();
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if (t0.length != 0)
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throw new RuntimeException("Bad nonzero length of suppressed exceptions.");
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Throwable suppressed = new ArithmeticException();
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t = new NoSuppression(true); // Suppression enabled
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// Make sure addSuppressed(null) throws an NPE
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try {
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t.addSuppressed(null);
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throw new RuntimeException("NPE not thrown!");
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} catch(NullPointerException e) {
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; // Expected
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}
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t.addSuppressed(suppressed);
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t0 = t.getSuppressed();
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if (t0.length != 1 || t0[0] != suppressed)
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throw new RuntimeException("Expected suppression did not occur.");
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}
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private static class NoSuppression extends Throwable {
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public NoSuppression(boolean enableSuppression) {
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super("The medium.", null, enableSuppression, true);
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}
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}
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private static void initCausePlumbing() {
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Throwable t1 = new Throwable();
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Throwable t2 = new Throwable("message", t1);
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Throwable t3 = new Throwable();
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try {
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t2.initCause(t3);
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throw new RuntimeException("Shouldn't reach.");
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} catch (IllegalStateException ise) {
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if (ise.getCause() != t2)
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throw new RuntimeException("Unexpected cause in ISE", ise);
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Throwable[] suppressed = ise.getSuppressed();
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if (suppressed.length != 0)
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throw new RuntimeException("Bad suppression in ISE", ise);
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}
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try {
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t2.initCause(null);
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throw new RuntimeException("Shouldn't reach.");
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} catch (IllegalStateException ise) {
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; // Expected; don't want an NPE.
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}
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try {
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t3.initCause(t3);
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throw new RuntimeException("Shouldn't reach.");
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} catch (IllegalArgumentException iae) {
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if (iae.getCause() != t3)
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throw new RuntimeException("Unexpected cause in ISE", iae);
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}
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}
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}
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