| /* |
| * Copyright (c) 1999, 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 |
| * @bug 4228592 |
| * @summary Ensure that ObjectInputStream properly skips over block data when a |
| * class that defines readObject() or readExternal() fails to read all |
| * of the data written by the corresponding writeObject() or |
| * writeExternal() method. |
| */ |
| |
| import java.io.*; |
| |
| class MismatchedRead implements Serializable { |
| int i; |
| float f; |
| |
| MismatchedRead(int i, float f) { |
| this.i = i; |
| this.f = f; |
| } |
| |
| private void writeObject(ObjectOutputStream out) throws IOException { |
| out.writeInt(i); |
| out.writeFloat(f); |
| out.writeUTF("skip me"); |
| } |
| |
| private void readObject(ObjectInputStream in) |
| throws IOException, ClassNotFoundException |
| { |
| i = in.readInt(); |
| f = in.readFloat(); |
| } |
| |
| public boolean equals(Object obj) { |
| if (! (obj instanceof MismatchedRead)) |
| return false; |
| MismatchedRead other = (MismatchedRead) obj; |
| return (i == other.i && f == other.f); |
| } |
| } |
| |
| class MismatchedReadExternal implements Externalizable { |
| int i; |
| float f; |
| |
| public MismatchedReadExternal() { |
| this(0, (float) 0.0); |
| } |
| |
| MismatchedReadExternal(int i, float f) { |
| this.i = i; |
| this.f = f; |
| } |
| |
| public void writeExternal(ObjectOutput out) throws IOException { |
| out.writeInt(i); |
| out.writeFloat(f); |
| out.writeUTF("skip another"); |
| } |
| |
| public void readExternal(ObjectInput in) throws IOException { |
| i = in.readInt(); |
| f = in.readFloat(); |
| } |
| |
| public boolean equals(Object obj) { |
| if (! (obj instanceof MismatchedReadExternal)) |
| return false; |
| MismatchedReadExternal other = (MismatchedReadExternal) obj; |
| return (i == other.i && f == other.f); |
| } |
| } |
| |
| class InnocentBystander implements Serializable { |
| String s; |
| |
| InnocentBystander(String s) { |
| this.s = s; |
| } |
| |
| public boolean equals(Object obj) { |
| if (! (obj instanceof InnocentBystander)) |
| return false; |
| InnocentBystander other = (InnocentBystander) obj; |
| if (s != null) |
| return s.equals(other.s); |
| return (s == other.s); |
| } |
| } |
| |
| public class SkipToEndOfBlockData { |
| public static void main(String[] args) throws Exception { |
| ObjectOutputStream oout; |
| ObjectInputStream oin; |
| ByteArrayOutputStream bout; |
| ByteArrayInputStream bin; |
| MismatchedRead mr, mrcopy; |
| MismatchedReadExternal mre, mrecopy; |
| InnocentBystander ib, ibcopy; |
| |
| bout = new ByteArrayOutputStream(); |
| oout = new ObjectOutputStream(bout); |
| mr = new MismatchedRead(1, (float) 2.34); |
| mre = new MismatchedReadExternal(5, (float) 6.78); |
| ib = new InnocentBystander("foo"); |
| |
| oout.writeObject(mr); |
| oout.writeObject(mre); |
| oout.writeObject(ib); |
| oout.flush(); |
| |
| bin = new ByteArrayInputStream(bout.toByteArray()); |
| oin = new ObjectInputStream(bin); |
| mrcopy = (MismatchedRead) oin.readObject(); |
| mrecopy = (MismatchedReadExternal) oin.readObject(); |
| ibcopy = (InnocentBystander) oin.readObject(); |
| |
| if (! (mr.equals(mrcopy) && mre.equals(mrecopy) && ib.equals(ibcopy))) |
| throw new Error("copy not equal to original"); |
| } |
| } |