| /* |
| * Copyright (c) 2010, 2013, 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.io.*; |
| import java.util.*; |
| |
| /* |
| * @test |
| * @bug 6911258 6962571 6963622 6991528 7005628 8012044 |
| * @summary Basic tests of suppressed exceptions |
| * @author Joseph D. Darcy |
| */ |
| |
| public class SuppressedExceptions { |
| private static String message = "Bad suppressed exception information"; |
| |
| public static void main(String... args) throws Exception { |
| noSelfSuppression(); |
| basicSupressionTest(); |
| serializationTest(); |
| selfReference(); |
| noModification(); |
| initCausePlumbing(); |
| } |
| |
| private static void noSelfSuppression() { |
| Throwable throwable = new Throwable(); |
| try { |
| throwable.addSuppressed(throwable); |
| throw new RuntimeException("IllegalArgumentException for self-suppresion not thrown."); |
| } catch (IllegalArgumentException iae) { |
| // Expected to be here |
| if (iae.getCause() != throwable) |
| throw new RuntimeException("Bad cause after self-suppresion."); |
| } |
| } |
| |
| private static void basicSupressionTest() { |
| Throwable throwable = new Throwable(); |
| RuntimeException suppressed = new RuntimeException("A suppressed exception."); |
| AssertionError repressed = new AssertionError("A repressed error."); |
| |
| Throwable[] t0 = throwable.getSuppressed(); |
| if (t0.length != 0) { |
| throw new RuntimeException(message); |
| } |
| throwable.printStackTrace(); |
| |
| throwable.addSuppressed(suppressed); |
| Throwable[] t1 = throwable.getSuppressed(); |
| if (t1.length != 1 || |
| t1[0] != suppressed) {throw new RuntimeException(message); |
| } |
| throwable.printStackTrace(); |
| |
| throwable.addSuppressed(repressed); |
| Throwable[] t2 = throwable.getSuppressed(); |
| if (t2.length != 2 || |
| t2[0] != suppressed || |
| t2[1] != repressed) { |
| throw new RuntimeException(message); |
| } |
| throwable.printStackTrace(); |
| } |
| |
| private static void serializationTest() throws Exception { |
| /* |
| * Bytes of the serial form of |
| * |
| * (new Throwable())setStackTrace(new StackTraceElement[0]) |
| * |
| * from JDK 6; suppressedException field will be missing and |
| * thus default to null upon deserialization. |
| */ |
| byte[] bytes = { |
| (byte)0xac, (byte)0xed, (byte)0x00, (byte)0x05, (byte)0x73, (byte)0x72, (byte)0x00, (byte)0x13, |
| (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2e, (byte)0x6c, (byte)0x61, (byte)0x6e, |
| (byte)0x67, (byte)0x2e, (byte)0x54, (byte)0x68, (byte)0x72, (byte)0x6f, (byte)0x77, (byte)0x61, |
| (byte)0x62, (byte)0x6c, (byte)0x65, (byte)0xd5, (byte)0xc6, (byte)0x35, (byte)0x27, (byte)0x39, |
| (byte)0x77, (byte)0xb8, (byte)0xcb, (byte)0x03, (byte)0x00, (byte)0x03, (byte)0x4c, (byte)0x00, |
| (byte)0x05, (byte)0x63, (byte)0x61, (byte)0x75, (byte)0x73, (byte)0x65, (byte)0x74, (byte)0x00, |
| (byte)0x15, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, |
| (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x54, (byte)0x68, (byte)0x72, (byte)0x6f, |
| (byte)0x77, (byte)0x61, (byte)0x62, (byte)0x6c, (byte)0x65, (byte)0x3b, (byte)0x4c, (byte)0x00, |
| (byte)0x0d, (byte)0x64, (byte)0x65, (byte)0x74, (byte)0x61, (byte)0x69, (byte)0x6c, (byte)0x4d, |
| (byte)0x65, (byte)0x73, (byte)0x73, (byte)0x61, (byte)0x67, (byte)0x65, (byte)0x74, (byte)0x00, |
| (byte)0x12, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, |
| (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53, (byte)0x74, (byte)0x72, (byte)0x69, |
| (byte)0x6e, (byte)0x67, (byte)0x3b, (byte)0x5b, (byte)0x00, (byte)0x0a, (byte)0x73, (byte)0x74, |
| (byte)0x61, (byte)0x63, (byte)0x6b, (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, (byte)0x65, |
| (byte)0x74, (byte)0x00, (byte)0x1e, (byte)0x5b, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, |
| (byte)0x61, (byte)0x2f, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53, |
| (byte)0x74, (byte)0x61, (byte)0x63, (byte)0x6b, (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, |
| (byte)0x65, (byte)0x45, (byte)0x6c, (byte)0x65, (byte)0x6d, (byte)0x65, (byte)0x6e, (byte)0x74, |
| (byte)0x3b, (byte)0x78, (byte)0x70, (byte)0x71, (byte)0x00, (byte)0x7e, (byte)0x00, (byte)0x04, |
| (byte)0x70, (byte)0x75, (byte)0x72, (byte)0x00, (byte)0x1e, (byte)0x5b, (byte)0x4c, (byte)0x6a, |
| (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2e, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, |
| (byte)0x2e, (byte)0x53, (byte)0x74, (byte)0x61, (byte)0x63, (byte)0x6b, (byte)0x54, (byte)0x72, |
| (byte)0x61, (byte)0x63, (byte)0x65, (byte)0x45, (byte)0x6c, (byte)0x65, (byte)0x6d, (byte)0x65, |
| (byte)0x6e, (byte)0x74, (byte)0x3b, (byte)0x02, (byte)0x46, (byte)0x2a, (byte)0x3c, (byte)0x3c, |
| (byte)0xfd, (byte)0x22, (byte)0x39, (byte)0x02, (byte)0x00, (byte)0x00, (byte)0x78, (byte)0x70, |
| (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x78, (byte)0xac, (byte)0xed, (byte)0x00, |
| (byte)0x05, (byte)0x73, (byte)0x72, (byte)0x00, (byte)0x13, (byte)0x6a, (byte)0x61, (byte)0x76, |
| (byte)0x61, (byte)0x2e, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2e, (byte)0x54, |
| (byte)0x68, (byte)0x72, (byte)0x6f, (byte)0x77, (byte)0x61, (byte)0x62, (byte)0x6c, (byte)0x65, |
| (byte)0xd5, (byte)0xc6, (byte)0x35, (byte)0x27, (byte)0x39, (byte)0x77, (byte)0xb8, (byte)0xcb, |
| (byte)0x03, (byte)0x00, (byte)0x03, (byte)0x4c, (byte)0x00, (byte)0x05, (byte)0x63, (byte)0x61, |
| (byte)0x75, (byte)0x73, (byte)0x65, (byte)0x74, (byte)0x00, (byte)0x15, (byte)0x4c, (byte)0x6a, |
| (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, |
| (byte)0x2f, (byte)0x54, (byte)0x68, (byte)0x72, (byte)0x6f, (byte)0x77, (byte)0x61, (byte)0x62, |
| (byte)0x6c, (byte)0x65, (byte)0x3b, (byte)0x4c, (byte)0x00, (byte)0x0d, (byte)0x64, (byte)0x65, |
| (byte)0x74, (byte)0x61, (byte)0x69, (byte)0x6c, (byte)0x4d, (byte)0x65, (byte)0x73, (byte)0x73, |
| (byte)0x61, (byte)0x67, (byte)0x65, (byte)0x74, (byte)0x00, (byte)0x12, (byte)0x4c, (byte)0x6a, |
| (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, (byte)0x6e, (byte)0x67, (byte)0x3b, |
| (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53, (byte)0x74, (byte)0x72, (byte)0x69, |
| (byte)0x5b, (byte)0x00, (byte)0x0a, (byte)0x73, (byte)0x74, (byte)0x61, (byte)0x63, (byte)0x6b, |
| (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, (byte)0x65, (byte)0x74, (byte)0x00, (byte)0x1e, |
| (byte)0x5b, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, |
| (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53, (byte)0x74, (byte)0x61, (byte)0x63, |
| (byte)0x6b, (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, (byte)0x65, (byte)0x45, (byte)0x6c, |
| (byte)0x65, (byte)0x6d, (byte)0x65, (byte)0x6e, (byte)0x74, (byte)0x3b, (byte)0x78, (byte)0x70, |
| (byte)0x71, (byte)0x00, (byte)0x7e, (byte)0x00, (byte)0x04, (byte)0x70, (byte)0x75, (byte)0x72, |
| (byte)0x00, (byte)0x1e, (byte)0x5b, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, |
| (byte)0x2e, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2e, (byte)0x53, (byte)0x74, |
| (byte)0x61, (byte)0x63, (byte)0x6b, (byte)0x54, (byte)0x72, (byte)0x61, (byte)0x63, (byte)0x65, |
| (byte)0x45, (byte)0x6c, (byte)0x65, (byte)0x6d, (byte)0x65, (byte)0x6e, (byte)0x74, (byte)0x3b, |
| (byte)0x02, (byte)0x46, (byte)0x2a, (byte)0x3c, (byte)0x3c, (byte)0xfd, (byte)0x22, (byte)0x39, |
| (byte)0x02, (byte)0x00, (byte)0x00, (byte)0x78, (byte)0x70, |
| }; |
| |
| try(ByteArrayInputStream bais = new ByteArrayInputStream(bytes); |
| ObjectInputStream ois = new ObjectInputStream(bais)) { |
| Object o = ois.readObject(); |
| Throwable throwable = (Throwable) o; |
| |
| System.err.println("TESTING SERIALIZED EXCEPTION"); |
| |
| Throwable[] t0 = throwable.getSuppressed(); |
| if (t0.length != 0) { // Will fail if t0 is null. |
| throw new RuntimeException(message); |
| } |
| throwable.printStackTrace(); |
| } |
| } |
| |
| private static void selfReference() { |
| Throwable throwable1 = new RuntimeException(); |
| Throwable throwable2 = new AssertionError(); |
| throwable1.initCause(throwable2); |
| throwable2.initCause(throwable1); |
| |
| throwable1.printStackTrace(); |
| |
| throwable1.addSuppressed(throwable2); |
| throwable2.addSuppressed(throwable1); |
| |
| throwable1.printStackTrace(); |
| } |
| |
| private static void noModification() { |
| Throwable t = new NoSuppression(false); |
| |
| Throwable[] t0 = t.getSuppressed(); |
| if (t0.length != 0) |
| throw new RuntimeException("Bad nonzero length of suppressed exceptions."); |
| |
| t.addSuppressed(new ArithmeticException()); |
| |
| // Make sure a suppressed exception did *not* get added. |
| t0 = t.getSuppressed(); |
| if (t0.length != 0) |
| throw new RuntimeException("Bad nonzero length of suppressed exceptions."); |
| |
| Throwable suppressed = new ArithmeticException(); |
| t = new NoSuppression(true); // Suppression enabled |
| // Make sure addSuppressed(null) throws an NPE |
| try { |
| t.addSuppressed(null); |
| throw new RuntimeException("NPE not thrown!"); |
| } catch(NullPointerException e) { |
| ; // Expected |
| } |
| t.addSuppressed(suppressed); |
| t0 = t.getSuppressed(); |
| if (t0.length != 1 || t0[0] != suppressed) |
| throw new RuntimeException("Expected suppression did not occur."); |
| } |
| |
| private static class NoSuppression extends Throwable { |
| public NoSuppression(boolean enableSuppression) { |
| super("The medium.", null, enableSuppression, true); |
| } |
| } |
| |
| private static void initCausePlumbing() { |
| Throwable t1 = new Throwable(); |
| Throwable t2 = new Throwable("message", t1); |
| Throwable t3 = new Throwable(); |
| |
| try { |
| t2.initCause(t3); |
| throw new RuntimeException("Shouldn't reach."); |
| } catch (IllegalStateException ise) { |
| if (ise.getCause() != t2) |
| throw new RuntimeException("Unexpected cause in ISE", ise); |
| Throwable[] suppressed = ise.getSuppressed(); |
| if (suppressed.length != 0) |
| throw new RuntimeException("Bad suppression in ISE", ise); |
| } |
| |
| try { |
| t2.initCause(null); |
| throw new RuntimeException("Shouldn't reach."); |
| } catch (IllegalStateException ise) { |
| ; // Expected; don't want an NPE. |
| } |
| |
| try { |
| t3.initCause(t3); |
| throw new RuntimeException("Shouldn't reach."); |
| } catch (IllegalArgumentException iae) { |
| if (iae.getCause() != t3) |
| throw new RuntimeException("Unexpected cause in ISE", iae); |
| } |
| } |
| } |