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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4668) Derby stored procedures with DriverManager.getConnection("jdbc:default:connection") fail if JCC 4.x (db2jcc4.jar) is in the classpath or any version jcc is explicitly loaded
Date Thu, 20 May 2010 18:37:20 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kathey Marsden updated DERBY-4668:
----------------------------------

    Attachment: Repro4668.java

Attached is a Reproduction for this issue Repro4668.  If I put db2jcc4.jar in my classpath
it fails because the JCC driver takes the connection away from the Derby stored procedure
before the Derby drier sees it:
javac -d . -g Repro4668.java

$ java com.mycode.Repro4668
Exception in thread "main" java.sql.SQLException: The exception 'com.ibm.db2.jcc
.am.SqlException: [jcc][10216][11231][4.11.29] Required property "databaseName"
is not set. ERRORCODE=-4462, SQLSTATE=null' was thrown while evaluating an expre
ssion.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLE
xceptionFactory40.java:95)
        at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
        at org.apache.derby.impl.jdbc.Util.seeNextException(Util.java:278)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException
(TransactionResourceImpl.java:398)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Tr
ansactionResourceImpl.java:346)
        at org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConne
ction.java:2269)
        at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Connection
Child.java:81)
        at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedState
ment.java:1321)
        at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
:625)
        at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
:555)
        at com.mycode.Repro4668.main(Repro4668.java:27)
Caused by: java.sql.SQLException: The exception 'com.ibm.db2.jcc.am.SqlException
: [jcc][10216][11231][4.11.29] Required property "databaseName" is not set. ERRO
RCODE=-4462, SQLSTATE=null' was thrown while evaluating an expression.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExc
eptionFactory.java:45)
        at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransport
AcrossDRDA(SQLExceptionFactory40.java:119)
        at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLE
xceptionFactory40.java:70)
        ... 10 more
Caused by: com.ibm.db2.jcc.am.SqlException: [jcc][10216][11231][4.11.29] Require
d property "databaseName" is not set. ERRORCODE=-4462, SQLSTATE=null
        at com.ibm.db2.jcc.am.fd.a(fd.java:660)
        at com.ibm.db2.jcc.am.fd.a(fd.java:60)
        at com.ibm.db2.jcc.am.fd.a(fd.java:103)
        at com.ibm.db2.jcc.uw.UWConnection.Md(UWConnection.java:353)
        at com.ibm.db2.jcc.uw.UWConnection.<init>(UWConnection.java:271)
        at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(DB2SimpleDataSource
.java:220)
        at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:456)
        at java.sql.DriverManager.getConnection(DriverManager.java:317)
        at java.sql.DriverManager.getConnection(DriverManager.java:273)
        at com.mycode.Repro4668.myproc(Repro4668.java:39)
        at org.apache.derby.exe.acf81e0010x0128xb6f7xc8f5x0000002a48300.g0(Unkno
wn Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:48)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:37)
        at java.lang.reflect.Method.invoke(Method.java:600)
        at org.apache.derby.impl.services.reflect.ReflectMethod.invoke(ReflectMe
thod.java:46)
        at org.apache.derby.impl.sql.execute.CallStatementResultSet.open(CallSta
tementResultSet.java:75)
        at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Generi
cPreparedStatement.java:436)
        at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPre
paredStatement.java:317)
        at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedState
ment.java:1232)
        ... 3 more

kmarsden@IBM-93AE43E63C0 ~/repro/derby-4668
$

The expected output and output without db2jcc4.jar in the claspath is:

$ java com.mycode.Repro4668
** Start stored procedure. Default Connection:Apache Derby
MYPROC visits:
2010-05-20 11:26:07.64






















































> Derby stored procedures with DriverManager.getConnection("jdbc:default:connection") fail
if JCC 4.x (db2jcc4.jar) is in the classpath or any version jcc is explicitly loaded
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4668
>                 URL: https://issues.apache.org/jira/browse/DERBY-4668
>             Project: Derby
>          Issue Type: Bug
>          Components: Miscellaneous
>    Affects Versions: 10.6.1.0
>         Environment: JDK 1.6, JCC 4.x (db2jcc4.jar) in the classpath
> $ java -version
> java version "1.6.0"
> Java(TM) SE Runtime Environment (build pwi3260sr7-20091217_01(SR7))
> IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 Windows XP x86-32 jvmwi3260sr7-200912
> 14_49398 (JIT enabled, AOT enabled)
> J9VM - 20091214_049398
> JIT  - r9_20091123_13891
> GC   - 20091111_AA)
> JCL  - 20091202_01
>            Reporter: Kathey Marsden
>            Priority: Critical
>         Attachments: Repro4668.java
>
>
> Executing a Derby stored procedure with JCC 4.x in the classpath will error because JCC
recognizes the jdbc:default:connection url and tries to make a connection. With JDK 1.6 and
JCC 4.x the JCC Driver is autoloaded so simply having it in the classpath can cause the error.
> To reproduce, put db2jcc4.jar in your classpath and run the test, lang.LangProcedureTest
which will fail with errors like:
> Caused by: java.lang.ExceptionInInitializerError
> 	at java.lang.J9VMInternals.initialize(J9VMInternals.java:222)
> 	at com.ibm.db2.jcc.t2.T2Configuration.<clinit>(T2Configuration.java:78)
> 	at java.lang.J9VMInternals.initializeImpl(Native Method)
> 	at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
> 	at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:420)
> 	at java.sql.DriverManager.getConnection(DriverManager.java:317)
> 	at java.sql.DriverManager.getConnection(DriverManager.java:273)
> 	at org.apache.derbyTesting.functionTests.tests.lang.LangProcedureTest.DERBY_3304(LangProcedureTest.java:287)
> 	at org.apache.derby.exe.ac05550069x0128xb447xd1b2x00002461cbf40.g0(Unknown Source)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
> 	at java.lang.reflect.Method.invoke(Method.java:600)
> 	at org.apache.derby.impl.services.reflect.ReflectMethod.invoke(ReflectMethod.java:46)
> 	at org.apache.derby.impl.sql.execute.CallStatementResultSet.open(CallStatementResultSet.java:75)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(GenericPreparedStatement.java:436)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:317)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1232)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:625)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.executeQuery(EmbedStatement.java:152)
> 	at org.apache.derbyTesting.functionTests.tests.lang.LangProcedureTest.testMethodSignatureDerby258(LangProcedureTest.java:268)
> 	... 23 more
> Caused by: java.security.AccessControlException: Access denied (java.util.PropertyPermission
* read,write)
> 	at java.security.AccessControlException.<init>(AccessControlException.java:62)
> 	at java.security.AccessController.checkPermission(AccessController.java:68)
> 	at java.lang.SecurityManager.checkPermission(SecurityManager.java:533)
> 	at java.lang.SecurityManager.checkPropertiesAccess(SecurityManager.java:1253)
> 	at java.lang.System.getProperties(System.java:323)
> 	at com.ibm.db2.jcc.am.md.run(md.java:37)
> 	at java.security.AccessController.doPrivileged(AccessController.java:202)
> 	at com.ibm.db2.jcc.t2.c.<clinit>(c.java:38)
> 	at java.lang.J9VMInternals.initializeImpl(Native Method)
> 	at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
> 	... 43 more
> used 109 ms .
> testParameterTypes used 188 ms E.
> testOutparams used 94 ms .
> testSQLControl used 234 ms E.
> testCreateRoutineErrors used 203 ms .
> testMethodSignatureDerby258 used 203 ms E.
> testDelayedClassChecking used 32 ms .
> testDuplicates used 171 ms .
> testAmbigiousMethods used 157 ms E.
> testZeroArgProcedures used 31 ms .
> testSqlProcedures used 203 ms E.
> testDynamicResultSets used 203 ms E.
> testResultSetsWithLobs FAIL: Encountered exception:
> java.sql.SQLException: The exception 'java.lang.NoClassDefFoundError: com.ibm.db2.jcc.t2.T2Configuration
(initialization failure)' was thrown while evaluating an expression.
> 	at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:96)
> 	at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:358)
> 	at org.apache.derby.client.am.PreparedStatement.execute(PreparedStatement.java:1574)
> 	at org.apache.derbyTesting.functionTests.tests.lang.LangProcedureTest.testResultSetsWithLobs(LangProcedureTest.java:899)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
> 	at java.lang.reflect.Method.invoke(Method.java:600)
> 	at junit.framework.TestCase.runTest(TestCase.java:154)
> 	at junit.framework.TestCase.runBare(TestCase.java:127)
> 	at org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:109)
> 	at junit.framework.TestResult$1.protect(TestResult.java:106)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.framework.TestResult.run(TestResult.java:109)
> 	at junit.framework.TestCase.run(TestCase.java:118)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:208)
> 	at junit.framework.TestSuite.run(TestSuite.java:203)
> 	at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22)
> 	at junit.extensions.TestSetup$1.protect(TestSetup.java:19)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.extensions.TestSetup.run(TestSetup.java:23)
> 	at org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
> 	at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22)
> 	at junit.extensions.TestSetup$1.protect(TestSetup.java:19)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.extensions.TestSetup.run(TestSetup.java:23)
> 	at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22)
> 	at junit.extensions.TestSetup$1.protect(TestSetup.java:19)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.extensions.TestSetup.run(TestSetup.java:23)
> 	at org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:208)
> 	at junit.framework.TestSuite.run(TestSuite.java:203)
> 	at junit.textui.TestRunner.doRun(TestRunner.java:116)
> 	at junit.textui.TestRunner.start(TestRunner.java:172)
> 	at junit.textui.TestRunner.main(TestRunner.java:138)
> I will post a smaller reproduction.
> I think JCC needs to be smarter about it's context and avoid hijacking  the connection
when not running inside a DB2 stored procedure.    The problem can also with previous JCC
versions if the driver is explicitly loaded. Autoloading aggravates the problem and may regress
Derby users when they upgrade their JCC. The DERBY-4664 fix will mitigate the issue for internal
procedures but does not solve the problem for user procedures.  I think the fix will have
to come from JCC but am filing it here as it may impact users.
> One workaround would be to remove JCC from the classpath if possible.

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