1 /*

     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /* @test

    25  * @bug 8026028

    26  * @summary Tests no leak of internal info

    27  * @author Shanliang JIANG

    28  * @run clean NoInfoLeakTest

    29  * @run build NoInfoLeakTest

    30  * @run main NoInfoLeakTest

    31  */

    32 

    33 import com.sun.jmx.snmp.SnmpString;

    34 import com.sun.jmx.snmp.agent.SnmpMib;

    35 import com.sun.jmx.snmp.agent.SnmpMibTable;

    36 import com.sun.jmx.snmp.daemon.CommunicatorServer;

    37 import com.sun.jmx.snmp.daemon.SnmpAdaptorServer;

    38 import javax.management.MBeanNotificationInfo;

    39 import javax.management.MBeanServer;

    40 import javax.management.ObjectName;

    41 

    42 public class NoInfoLeakTest {

    43     public static void main(String[] args) throws Exception {

    44         boolean ok = true;

    45         ok &= snmpStringTest();

    46         ok &= snmpMibTest();

    47         ok &= communicatorServerTest();

    48 

    49         if (!ok) {

    50             throw new RuntimeException("Some tests are failed!");

    51         }

    52     }

    53 

    54     private static boolean snmpStringTest() {

    55         System.out.println("\n---NoInfoLeakTest-snmpStringTest: testing the method byteValue()...");

    56         boolean passed = true;

    57 

    58         byte[] mine = new byte[]{1,1,1,};

    59         SnmpString ss = new SnmpString(mine);

    60         byte[] got = ss.byteValue();

    61         got[0]=0;

    62 

    63         if (ss.byteValue()[0] == 0) {

    64             System.err.println("Failed: SnmpString.byteValue() returns an internal mutable object value");

    65             passed = false;

    66         } else {

    67             System.out.println("---NoInfoLeakTest-snmpStringTest done.");

    68         }

    69         return passed;

    70     }

    71 

    72     private static boolean snmpMibTest() {

    73         boolean passed = true;

    74         System.out.println("\n---NoInfoLeakTest-snmpMibTest: testing the method "

    75                 + "SnmpMib.getRootOid()...");

    76         SnmpMib mib = new MySnmpMib();

    77 

    78         if (mib.getRootOid() == mib.getRootOid()) {

    79             System.err.println("Failed: SnmpMib.getRootOid() returns an internal"

    80                     + " mutable object value "+mib.getRootOid());

    81         } else {

    82             System.out.println("---NoInfoLeakTest-snmpMibTest done.");

    83         }

    84         return passed;

    85     }

    86 

    87     private static boolean communicatorServerTest() {

    88         boolean passed = true;

    89         System.out.println("\n---NoInfoLeakTest-communicatorServerTest: testing the method CommunicatorServer.getNotificationInfo()...");

    90         CommunicatorServer server = new SnmpAdaptorServer();

    91         MBeanNotificationInfo[] notifs = server.getNotificationInfo();

    92 

    93         assert notifs.length > 0 && notifs[0] != null; // the current implementation ensures this

    94         notifs[0] = null;

    95         if (server.getNotificationInfo()[0] == null) {

    96             System.err.println("Failed: CommunicatorServer.getNotificationInfo()"

    97                     + " returns an internal mutable object value");

    98             passed = false;

    99         } else {

   100             System.out.println("---NoInfoLeakTest-communicatorServerTest done.");

   101         }

   102         return passed;

   103     }

   104 

   105     private static class MySnmpMib extends SnmpMib {

   106         @Override

   107         public void registerTableMeta(String name, SnmpMibTable table) {

   108             throw new UnsupportedOperationException("Not supported yet.");

   109         }

   110 

   111         @Override

   112         public SnmpMibTable getRegisteredTableMeta(String name) {

   113             throw new UnsupportedOperationException("Not supported yet.");

   114         }

   115 

   116         @Override

   117         public void init() throws IllegalAccessException {

   118             throw new UnsupportedOperationException("Not supported yet.");

   119         }

   120 

   121         @Override

   122         public ObjectName preRegister(MBeanServer server, ObjectName name) throws Exception {

   123             throw new UnsupportedOperationException("Not supported yet.");

   124         }

   125     }

   126 }