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From Øystein Grøvlen (JIRA) <j...@apache.org>
Subject [jira] Updated: (DERBY-2111) EOFException when using stream as parameter for multi-row update statement in embedded driver
Date Thu, 23 Nov 2006 09:28:02 GMT
     [ http://issues.apache.org/jira/browse/DERBY-2111?page=all ]

Øystein Grøvlen updated DERBY-2111:
-----------------------------------

    Attachment: streamtest.java

This attached JUNIT test reproduces the bug.

> EOFException when using stream as parameter for multi-row update statement in embedded
driver
> ---------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2111
>                 URL: http://issues.apache.org/jira/browse/DERBY-2111
>             Project: Derby
>          Issue Type: Bug
>    Affects Versions: 10.2.1.6, 10.3.0.0
>         Environment: Embedded JDBC driver
>            Reporter: Øystein Grøvlen
>            Priority: Minor
>             Fix For: 10.3.0.0
>
>         Attachments: streamtest.java
>
>
> If a stream is used as parameter to an update statement that will update several rows,
the update statement will fail.
> I will attach a JUNIT test that reproduces this error.  This only fails with the embedded
driver.  It works well with the client driver.  The exception I get is:
> There was 1 error:
> 1) testMultipleUpdates(org.apache.derbyTesting.functionTests.tests.jdbcapi.streamtest)ERROR
XSDA4: An unexpected exception was thrown
>        at org.apache.derby.iapi.error.StandardException.newException(StandardException.java:298)
>        at org.apache.derby.impl.store.raw.data.UpdateOperation.<init>(UpdateOperation.java:110)
>         at org.apache.derby.impl.store.raw.data.LoggableActions.actionUpdate(LoggableActions.java:80)
>    at org.apache.derby.impl.store.raw.data.StoredPage.doUpdateAtSlot(StoredPage.java:8537)
>  at org.apache.derby.impl.store.raw.data.BasePage.updateAtSlot(BasePage.java:1111)
>        at org.apache.derby.impl.store.access.conglomerate.GenericConglomerateController.replace(GenericConglomerateController.java:479)
>         at org.apache.derby.impl.sql.execute.RowChangerImpl.updateRow(RowChangerImpl.java:523)
>   at org.apache.derby.impl.sql.execute.UpdateResultSet.collectAffectedRows(UpdateResultSet.java:579)
>       at org.apache.derby.impl.sql.execute.UpdateResultSet.open(UpdateResultSet.java:273)
>      at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:358)
>         at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1182)
>  at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(EmbedPreparedStatement.java:1635)
>  at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeUpdate(EmbedPreparedStatement.java:299)
>      at org.apache.derbyTesting.functionTests.tests.jdbcapi.streamtest.testMultipleUpdates(streamtest.java:83)
>        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:76)
>      at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22)
>        at junit.extensions.TestSetup$1.protect(TestSetup.java:19)
>       at junit.extensions.TestSetup.run(TestSetup.java:23)
> The underlying error is:
> .java.io.EOFException: Stream has already been read and end-of-file reached and cannot
be re-used.
>   at org.apache.derby.iapi.types.ReaderToUTF8Stream.read(ReaderToUTF8Stream.java:185)
>      at org.apache.derby.impl.store.raw.data.MemByteHolder.write(MemByteHolder.java:146)
>      at org.apache.derby.impl.store.raw.data.RememberBytesInputStream.fillBuf(RememberBytesInputStream.java:135)
>      at org.apache.derby.impl.store.raw.data.StoredPage.logColumn(StoredPage.java:6155)
>       at org.apache.derby.impl.store.raw.data.StoredPage.logRow(StoredPage.java:3959)
>  at org.apache.derby.impl.store.raw.data.UpdateOperation.writeOptionalDataToBuffer(UpdateOperation.java:255)
>      at org.apache.derby.impl.store.raw.data.UpdateOperation.<init>(UpdateOperation.java:106)
>         at org.apache.derby.impl.store.raw.data.LoggableActions.actionUpdate(LoggableActions.java:80)
>    at org.apache.derby.impl.store.raw.data.StoredPage.doUpdateAtSlot(StoredPage.java:8537)
>  at org.apache.derby.impl.store.raw.data.BasePage.updateAtSlot(BasePage.java:1111)
>        at org.apache.derby.impl.store.access.conglomerate.GenericConglomerateController.replace(GenericConglomerateController.java:479)
>         at org.apache.derby.impl.sql.execute.RowChangerImpl.updateRow(RowChangerImpl.java:523)
>   at org.apache.derby.impl.sql.execute.UpdateResultSet.collectAffectedRows(UpdateResultSet.java:579)
>       at org.apache.derby.impl.sql.execute.UpdateResultSet.open(UpdateResultSet.java:273)
>      at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:358)
>         at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1182)
>  at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(EmbedPreparedStatement.java:1635)
>  at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeUpdate(EmbedPreparedStatement.java:299)
>      at org.apache.derbyTesting.functionTests.tests.jdbcapi.streamtest.testMultipleUpdates(streamtest.java:83)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>      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:76)
>      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 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 assume this indicates that the stream is used directly to update a row, and that it
fails when trying to use the same stream for the second row. The reason it does not fail in
the client driver is that the stream is not passed to the server, it  is just used to instantiate
the LOB in memory.

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