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8  * particular file as subject to the "Classpath" exception as provided
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12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
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24  */
25 
26 import java.io.ByteArrayInputStream;
27 import java.io.ByteArrayOutputStream;
28 import java.io.DataOutputStream;
29 import java.io.IOException;
30 import java.io.InvalidObjectException;
31 import java.io.ObjectInputStream;
32 import java.io.ObjectStreamConstants;
33 import static java.io.ObjectStreamConstants.STREAM_MAGIC;
34 import static java.io.ObjectStreamConstants.TC_CLASSDESC;
35 import static java.io.ObjectStreamConstants.TC_ENDBLOCKDATA;
36 import static java.io.ObjectStreamConstants.TC_NULL;
37 import static java.io.ObjectStreamConstants.TC_OBJECT;
38 import java.net.Inet6Address;
39 /**
40  * @test
41  * @bug 8194676
42  * @summary NullPointerException is thrown if ipaddress is not set.
43  * @run main Inet6AddressSerTest
44  */
45 public class Inet6AddressSerTest implements ObjectStreamConstants {
46 
47     static class PayloadTest {
48 
serialize(String className)49         private static byte[] serialize(String className) throws IOException {
50             try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
51                     DataOutputStream dos = new DataOutputStream(baos)) {
52                 // stream headers
53                 dos.writeShort(STREAM_MAGIC);
54                 dos.writeShort(5); // version
55 
56                 // Inet6Address
57                 dos.writeByte(TC_OBJECT);
58                 dos.writeByte(TC_CLASSDESC);
59                 dos.writeUTF(className);
60                 dos.writeLong(6880410070516793377L);
61                 dos.writeByte(2);
62                 dos.writeShort(0);
63                 dos.writeByte(TC_ENDBLOCKDATA);
64                 dos.writeByte(TC_NULL);
65                 return baos.toByteArray();
66             }
67         }
68 
deserialize(final byte[] buffer)69         private static Object deserialize(final byte[] buffer)
70                 throws IOException, ClassNotFoundException {
71             try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(buffer))) {
72                 return ois.readObject();
73             }
74         }
75 
test(String className)76         void test(String className) throws IOException, ClassNotFoundException {
77             deserialize(serialize(className));
78         }
79     }
80 
main(String[] args)81     public static void main(String[] args) throws IOException, ClassNotFoundException {
82         try {
83             new PayloadTest().test(Inet6Address.class.getName());
84             throw new RuntimeException("Expected exception not raised");
85         } catch (InvalidObjectException ioe) {
86             if (ioe.getMessage().contains("invalid address length")) {
87                 System.out.println(String.format("Got expected exception: %s", ioe));
88             } else {
89                 throw new RuntimeException("Expected exception not raised");
90             }
91         } catch (RuntimeException re) {
92             throw new RuntimeException("Expected exception not raised");
93         }
94     }
95 }
96