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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