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From Vemund Østgaard (JIRA) <j...@apache.org>
Subject [jira] Created: (DERBY-3170) Connecting through network server after engine has been stopped causes NullPointerException on the server side
Date Thu, 01 Nov 2007 09:12:50 GMT
Connecting through network server after engine has been stopped causes NullPointerException
on the server side
--------------------------------------------------------------------------------------------------------------

                 Key: DERBY-3170
                 URL: https://issues.apache.org/jira/browse/DERBY-3170
             Project: Derby
          Issue Type: Bug
          Components: Network Server
    Affects Versions: 10.4.0.0
         Environment: Solaris 10 x86, Sun JDK 1.6.
svn  revision 590939 (trunk).

            Reporter: Vemund Østgaard


While working on a port for a test that has to reset system properties, I discovered this
problem. The test setup starts a networkserver in the same JVM as the test is running in,
then stops the Derby engine and tries to connect to the database through the client driver
and network server. This causes the following exception returned to the application:

1) testRepro(org.apache.derbyTesting.functionTests.tests.lang.ReproTest)java.sql.SQLFeatureNotSupportedException:
The DDM object 0x1232 is not supported.  The connection has been terminated.
        at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source)
        at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
        at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
        at java.sql.DriverManager.getConnection(DriverManager.java:582)
        at java.sql.DriverManager.getConnection(DriverManager.java:185)
        at org.apache.derbyTesting.junit.DriverManagerConnector.openConnection(DriverManagerConnector.java:76)
        at org.apache.derbyTesting.junit.DriverManagerConnector.openConnection(DriverManagerConnector.java:43)
        at org.apache.derbyTesting.junit.TestConfiguration.openDefaultConnection(TestConfiguration.java:1030)
        at org.apache.derbyTesting.junit.BaseJDBCTestCase.openDefaultConnection(BaseJDBCTestCase.java:366)
        at org.apache.derbyTesting.junit.BaseJDBCTestCase.getConnection(BaseJDBCTestCase.java:102)
        at org.apache.derbyTesting.functionTests.tests.lang.ReproTest.testRepro(ReproTest.java:48)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:95)
        at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
        at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
        at junit.extensions.TestSetup.run(TestSetup.java:25)
        at org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
        at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
        at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
        at junit.extensions.TestSetup.run(TestSetup.java:25)
Caused by: org.apache.derby.client.am.DisconnectException: The DDM object 0x1232 is not supported.
 The connection has been terminated.
        at org.apache.derby.client.net.NetConnectionReply.doObjnsprmSemantics(Unknown Source)
        at org.apache.derby.client.net.NetConnectionReply.parseCommonError(Unknown Source)
        at org.apache.derby.client.net.NetConnectionReply.parseSecurityCheckError(Unknown
Source)
        at org.apache.derby.client.net.NetConnectionReply.parseSECCHKreply(Unknown Source)
        at org.apache.derby.client.net.NetConnectionReply.readSecurityCheck(Unknown Source)
        at org.apache.derby.client.net.NetConnection.readSecurityCheckAndAccessRdb(Unknown
Source)
        at org.apache.derby.client.net.NetConnection.flowSecurityCheckAndAccessRdb(Unknown
Source)
        at org.apache.derby.client.net.NetConnection.flowUSRIDPWDconnect(Unknown Source)
        at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source)
        at org.apache.derby.client.net.NetConnection.<init>(Unknown Source)
        at org.apache.derby.client.net.NetConnection40.<init>(Unknown Source)
        at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown
Source)
        ... 32 more

On the server side I see a NullPointerException:

Apache Derby Network Server - 10.4.0.0 alpha - (590618M) started and ready to accept connections
on port 1527 at 2007-11-01 08:38:37.605 GMT
null
java.lang.NullPointerException
        at org.apache.derby.impl.drda.DRDAConnThread.isAuthenticationException(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Execution failed because of Permanent Agent Error: SVRCOD = 40; RDBNAM = wombat; diagnostic
msg = null
org.apache.derby.impl.drda.DRDAProtocolException: Execution failed because of Permanent Agent
Error: SVRCOD = 40; RDBNAM = wombat; diagnostic msg = null
        at org.apache.derby.impl.drda.DRDAProtocolException.newAgentError(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.sendUnexpectedException(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.handleException(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
null
java.lang.NullPointerException
        at org.apache.derby.impl.drda.DRDAConnThread.isAuthenticationException(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Apache Derby Network Server - 10.4.0.0 alpha - (590618M) shutdown at 2007-11-01 08:38:38.318
GMT




The class below is a test for the JUnit framework that reproduces the problem.

/*
 
   Derby - Class org.apache.derbyTesting.functionTests.tests.lang.logStream
 
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at
 
      http://www.apache.org/licenses/LICENSE-2.0
 
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
 
 */

package org.apache.derbyTesting.functionTests.tests.lang;

import java.sql.SQLException;
import junit.framework.Test;
import org.apache.derbyTesting.junit.BaseJDBCTestCase;
import org.apache.derbyTesting.junit.TestConfiguration;

/**
 * Bug repro.
 */
public class ReproTest extends BaseJDBCTestCase {

    public ReproTest(String name) {
        super(name);
    }
    
    public static Test suite() {
        return TestConfiguration.clientServerDecorator(
              new ReproTest("testRepro"));
    }
    
    /**
     * repro
     */
    public void testRepro() throws SQLException {
        getTestConfiguration().shutdownEngine();
        getConnection();
    }
    
}


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