| /* |
| * Copyright (c) 2015, 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.BufferedOutputStream; |
| import java.io.FilterOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| /* |
| * @test |
| * @bug 8042377 |
| * @summary Ensure suppressed exceptions are properly handled in close() |
| */ |
| public class SuppressedException { |
| private static final String CLOSE_MESSAGE = "Close exception"; |
| private static final String FLUSH_MESSAGE = "Flush exception"; |
| private static final String SAME_MESSAGE = "Same exception"; |
| |
| public static void main(String[] args) throws java.io.IOException { |
| SuppressedException test = new SuppressedException(); |
| test.test(); |
| } |
| |
| private FilterOutputStream createOutputStream(OutputStream out, |
| boolean isBuffered) { |
| return isBuffered ? new BufferedOutputStream(out) : |
| new FilterOutputStream(out); |
| } |
| |
| private void test() { |
| int failures = 0; |
| FilterOutputStream buf; |
| |
| boolean[] isBuffered = new boolean[] {false, true}; |
| for (boolean buffered : isBuffered) { |
| System.err.println("\n>>> Buffered: " + buffered + " <<<"); |
| System.err.flush(); |
| |
| try { |
| buf = createOutputStream(new OutputStreamFailsWithException(), |
| buffered); |
| buf.close(); |
| System.err.println("\nNo IOException thrown for same exception"); |
| failures++; |
| } catch (IOException expected) { |
| if (!expected.getMessage().equals(SAME_MESSAGE)) { |
| System.err.println("\nIOException with unexpected message thrown"); |
| expected.printStackTrace(); |
| failures++; |
| } |
| } catch (IllegalArgumentException unexpected) { |
| System.err.println("\nUnexpected IllegalArgumentException thrown"); |
| unexpected.printStackTrace(); |
| failures++; |
| } |
| |
| try { |
| buf = createOutputStream( |
| new OutputStreamFailsWithException(false, false), |
| buffered); |
| buf.close(); |
| } catch (IOException e) { |
| System.err.println("\nUnexpected IOException thrown"); |
| e.printStackTrace(); |
| failures++; |
| } |
| |
| try { |
| buf = createOutputStream( |
| new OutputStreamFailsWithException(true, false), |
| buffered); |
| buf.close(); |
| } catch (IOException e) { |
| if (!e.getMessage().equals(CLOSE_MESSAGE)) { |
| System.err.println("\nIOException with unexpected message thrown"); |
| e.printStackTrace(); |
| failures++; |
| } |
| } |
| |
| try { |
| buf = createOutputStream( |
| new OutputStreamFailsWithException(false, true), |
| buffered); |
| buf.close(); |
| } catch (IOException e) { |
| if (!e.getMessage().equals(FLUSH_MESSAGE)) { |
| System.err.println("\nIOException with unexpected message thrown"); |
| e.printStackTrace(); |
| failures++; |
| } |
| } |
| |
| try { |
| buf = createOutputStream( |
| new OutputStreamFailsWithException(true, true), |
| buffered); |
| buf.close(); |
| } catch (IOException e) { |
| if (!e.getMessage().equals(CLOSE_MESSAGE)) { |
| System.err.println("\nIOException with unexpected message thrown"); |
| e.printStackTrace(); |
| failures++; |
| } |
| |
| Throwable[] suppressed = e.getSuppressed(); |
| if (suppressed == null) { |
| System.err.println("\nExpected suppressed exception not present"); |
| e.printStackTrace(); |
| failures++; |
| } else if (suppressed.length != 1) { |
| System.err.println("\nUnexpected number of suppressed exceptions"); |
| e.printStackTrace(); |
| failures++; |
| } else if (!(suppressed[0] instanceof IOException)) { |
| System.err.println("\nSuppressed exception is not an IOException"); |
| e.printStackTrace(); |
| failures++; |
| } else if (!suppressed[0].getMessage().equals(FLUSH_MESSAGE)) { |
| System.err.println("\nIOException with unexpected message thrown"); |
| e.printStackTrace(); |
| failures++; |
| } |
| } |
| } |
| |
| if (failures > 0) { |
| throw new RuntimeException("Test failed with " + failures + " errors"); |
| } else { |
| System.out.println("Test succeeded."); |
| } |
| } |
| |
| class OutputStreamFailsWithException extends OutputStream { |
| private final IOException sameException = new IOException(SAME_MESSAGE); |
| |
| private final Boolean throwSeparateCloseException; |
| private final Boolean throwSeparateFlushException; |
| |
| OutputStreamFailsWithException() { |
| throwSeparateCloseException = null; |
| throwSeparateFlushException = null; |
| } |
| |
| OutputStreamFailsWithException(boolean throwCloseException, |
| boolean throwFlushException) { |
| throwSeparateCloseException = throwCloseException; |
| throwSeparateFlushException = throwFlushException; |
| } |
| |
| @Override |
| public void write(int i) throws IOException { |
| throw new UnsupportedOperationException(""); |
| } |
| |
| @Override |
| public void flush() throws IOException { |
| System.out.println("flush()"); |
| if (throwSeparateFlushException == null) { |
| throw sameException; |
| } else if (throwSeparateFlushException) { |
| throw new IOException(FLUSH_MESSAGE); |
| } |
| } |
| |
| @Override |
| public void close() throws IOException { |
| System.out.println("close()"); |
| if (throwSeparateCloseException == null) { |
| throw sameException; |
| } else if (throwSeparateCloseException) { |
| throw new IOException(CLOSE_MESSAGE); |
| } |
| } |
| } |
| } |