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From "Suran Jayathilaka (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4122) ClassCastException in SQLClob when running in soft upgrade mode (10.4.2.0 -> 10.5.1.0)
Date Thu, 26 Mar 2009 19:30:51 GMT
ClassCastException in SQLClob when running in soft upgrade mode (10.4.2.0 -> 10.5.1.0)
--------------------------------------------------------------------------------------

                 Key: DERBY-4122
                 URL: https://issues.apache.org/jira/browse/DERBY-4122
             Project: Derby
          Issue Type: Bug
          Components: Regression Test Failure
    Affects Versions: 10.5.1.0
         Environment: Windows Vista 64, Sun JDK 1.6.0_10, Junit 3.8.2
            Reporter: Suran Jayathilaka
            Priority: Blocker


This bug was found when doing soft upgrade testing from Derby version 10.4.2.0 to 10.5.1.0
(RC1)

Steps followed are as follows.

1. Run setEmbeddedCP.bat from version 10.4.2.0's bin folder
2. In a test folder run ij
3. create system/wombat database.
    ij> connect 'jdbc:derby:system/wombat;create=true';
4. exit ij
5. Copy the 10.5.1.0 derby jars (from lib folder) and the derbyTesting.jar from 10.4.2.0 to
the test folder and set classpath with them (including junit and ORO)
6. Run suites.All 
     java -Xmx512M -Xms512M -Dderby.tests.trace=true junit.textui.TestRunner org.apache.derbyTesting.functionTests.suites.All

Result:
Tests run: 10479,  Failures: 56,  Errors: 34

The exception stack trace from a failed test follows.

-------------------------------------------------------------------------------------------------------------

3) testClobInTriggerTable(org.apache.derbyTesting.functionTests.tests.lang.TriggerTest)java.sql.SQLException:
Java exception: 'org.apache.derby.iapi.types.ReaderToUTF8Stream cannot be cast to org.apache.derby.iapi.types.Resetable:
java.lang.ClassCastException'.
	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)
	at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
	at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)
	at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
	at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
	at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
	at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
	at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown Source)
	at org.apache.derby.impl.jdbc.EmbedPreparedStatement.execute(Unknown Source)
	at org.apache.derbyTesting.functionTests.tests.lang.TriggerTest.testClobInTriggerTable(TriggerTest.java:529)
	at org.apache.derbyTesting.functionTests.tests.lang.TriggerTest.testClobInTriggerTable(TriggerTest.java:451)
	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:102)
	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)
Caused by: java.sql.SQLException: Java exception: 'org.apache.derby.iapi.types.ReaderToUTF8Stream
cannot be cast to org.apache.derby.iapi.types.Resetable: java.lang.ClassCastException'.
	at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown
Source)
	... 39 more
Caused by: java.lang.ClassCastException: org.apache.derby.iapi.types.ReaderToUTF8Stream cannot
be cast to org.apache.derby.iapi.types.Resetable
	at org.apache.derby.iapi.types.SQLClob.rewindStream(Unknown Source)
	at org.apache.derby.iapi.types.SQLClob.readExternal(Unknown Source)
	at org.apache.derby.iapi.types.SQLChar.getString(Unknown Source)
	at org.apache.derby.iapi.types.SQLChar.loadStream(Unknown Source)
	at org.apache.derby.impl.sql.execute.UpdateResultSet.objectifyStream(Unknown Source)
	at org.apache.derby.impl.sql.execute.UpdateResultSet.collectAffectedRows(Unknown Source)
	at org.apache.derby.impl.sql.execute.UpdateResultSet.open(Unknown Source)
	at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Unknown Source)
	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)
	... 32 more
------------------------------------------------------------------------------------------------------------------

When looking at the SVN revisions for SQLClob with Kathey Marsden, we found the following
statement in revision # 738408, related to DERBY-3907, which might be related to this issue.

"NOTE: Databases created with this revision (or later) containing Clobs, cannot be accessed
by earlier trunk revisions."
Patch file: derby-3907-7a3-use_new_header_format.diff



      

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