Uploaded image for project: 'Derby'
  1. Derby
  2. DERBY-4122

ClassCastException in SQLClob when running in soft upgrade mode (10.4.2.0 -> 10.5.1.0)

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 10.5.1.1, 10.6.1.0
    • Component/s: Test
    • Labels:
      None
    • Environment:
      Windows Vista 64, Sun JDK 1.6.0_10, Junit 3.8.2
    • Urgency:
      Blocker
    • Bug behavior facts:
      Regression, Regression Test Failure

      Description

      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

        Attachments

        1. derby-4122-4c-classcast_fix_mark_reset.diff
          40 kB
          Kristian Waagan
        2. derby-4122-4b-classcast_fix_mark_reset.diff
          39 kB
          Kristian Waagan
        3. derby-4122-4a-classcast_fix_mark_reset.diff
          17 kB
          Kristian Waagan
        4. derby-4122-3b-classcast_fix.diff
          10 kB
          Kristian Waagan
        5. derby-4122-3a-classcast_fix.diff
          9 kB
          Kristian Waagan
        6. derby-4122-2a-bc4btest.diff
          0.8 kB
          Kristian Waagan
        7. derby-4122-1a-incorrect_stream_positioning.diff
          0.8 kB
          Kristian Waagan

          Issue Links

            Activity

              People

              • Assignee:
                kristwaa Kristian Waagan
                Reporter:
                suranjay Suran Jayathilaka
              • Votes:
                1 Vote for this issue
                Watchers:
                1 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: