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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4102) Assert failure or ClassCastException in EmbedBlob when retrieving BLOB >= 32K
Date Fri, 17 Apr 2009 12:16:14 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12700149#action_12700149
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Kristian Waagan commented on DERBY-4102:
----------------------------------------

I'm seeing an intermittent failure when running with the patch. The failure happens in jdbcapi.LobStreamsTest.
I have seen the following two stack traces:

1) testBlobWrite3Param(org.apache.derbyTesting.functionTests.tests.jdbcapi.LobStreamsTest)java.io.IOException:
ERROR 40XD0: Container has been closed.
	at org.apache.derby.impl.store.raw.data.OverflowInputStream.fillByteHolder(OverflowInputStream.java:159)
	at org.apache.derby.impl.store.raw.data.BufferedByteHolderInputStream.read(BufferedByteHolderInputStream.java:44)
	at java.io.DataInputStream.read(DataInputStream.java:132)
	at org.apache.derby.impl.jdbc.PositionedStoreStream.read(PositionedStoreStream.java:116)
	at org.apache.derby.impl.jdbc.AutoPositioningStream.read(AutoPositioningStream.java:113)
	at org.apache.derby.impl.jdbc.UpdatableBlobStream.read(UpdatableBlobStream.java:184)
	at org.apache.derbyTesting.functionTests.tests.jdbcapi.LobStreamsTest.readBytesFromStream(LobStreamsTest.java:463)
	at org.apache.derbyTesting.functionTests.tests.jdbcapi.LobStreamsTest.compareLob2File(LobStreamsTest.java:488)
	at org.apache.derbyTesting.functionTests.tests.jdbcapi.LobStreamsTest.testBlobWrite3Param(LobStreamsTest.java:130)
	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:105)
	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)
	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)

FAILURES!!!
Tests run: 24,  Failures: 0,  Errors: 1

1) testBlobWrite3Param(org.apache.derbyTesting.functionTests.tests.jdbcapi.LobStreamsTest)java.sql.SQLException:
The data in this BLOB or CLOB is no longer available.  The BLOB/CLOB's transaction may be
committed, its connection closed or it has been freed.
	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:95)
	at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Util.java:201)
	at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:391)
	at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:346)
	at org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2201)
	at org.apache.derby.impl.jdbc.ConnectionChild.handleException(ConnectionChild.java:81)
	at org.apache.derby.impl.jdbc.EmbedBlob.handleMyExceptions(EmbedBlob.java:792)
	at org.apache.derby.impl.jdbc.EmbedBlob.getBinaryStream(EmbedBlob.java:549)
	at org.apache.derbyTesting.functionTests.tests.jdbcapi.LobStreamsTest.testBlobWrite3Param(LobStreamsTest.java:129)
	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:105)
	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: The data in this BLOB or CLOB is no longer available.  The
BLOB/CLOB's transaction may be committed, its connection closed or it has been freed.
	at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:119)
	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:70)
	... 39 more
Caused by: ERROR XJ073: The data in this BLOB or CLOB is no longer available.  The BLOB/CLOB's
transaction may be committed, its connection closed or it has been freed.
	at org.apache.derby.iapi.error.StandardException.newException(StandardException.java:276)
	at org.apache.derby.impl.jdbc.EmbedBlob.handleMyExceptions(EmbedBlob.java:789)
	... 33 more


On my system the problem is seen in maybe one out of ten or fifteen runs. I can't see  the
new code being run as part of the test, so I'm not sure what's going on here.

> Assert failure or ClassCastException in EmbedBlob when retrieving BLOB >= 32K
> -----------------------------------------------------------------------------
>
>                 Key: DERBY-4102
>                 URL: https://issues.apache.org/jira/browse/DERBY-4102
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.1.1.0, 10.2.2.0, 10.3.3.0, 10.4.2.0, 10.5.0.0, 10.6.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Kristian Waagan
>         Attachments: CastExc.java, derby-4102-1a.diff, derby-4102-1a.stat
>
>
> The code below results in an assert error (with sane jars) or a ClassCastException (with
insane jars):
>         PreparedStatement ps = c.prepareStatement("values cast(? as blob)");
>         int len = 32 * 1024;
>         ps.setBinaryStream(1, new ByteArrayInputStream(new byte[len]), len);
>         ResultSet rs = ps.executeQuery();
>         while (rs.next()) {
>             rs.getBlob(1);
>         }
> If len < 32K there is no error.

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