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https://issues.apache.org/jira/browse/DERBY-5317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13790284#comment-13790284
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Dyre Tjeldvoll commented on DERBY-5317:
---------------------------------------
Good suggestions, thanks.
Wrt. contentEquals - I thought the more specific method should be preferred -
contentEquals(CharSquence) over equals(Object). I naively assumed that since
someone has gone through the trouble of providing the former, it was because
there is some benefit (performance or other) to be had if you already know that
you are comparing to a CharSequence...
Wrt. backtick - Changed - but see
http://programmers.stackexchange.com/questions/75349/why-do-nix-y-folks-single-quote-like-this-instead-of-like-this
if you're bored :)
Wrt. (Object[]) cast - Changed. However, I shamelessly blame Netbeans for this
:) I think I used Netbeans to refactor away the local var which was used as the
last arg, which then became null, (or maybe I added the null myself just to
make it compile). Then NB gives a warning and suggests "cast to Object for a
varargs call" or "cast to (Object[]) for a non-varargs call and to suppress
this warning".
> NullPointerException in org.apache.derby.client.net.Request.sendBytes()
> with client
> -------------------------------------------------------------------------------------
>
> Key: DERBY-5317
> URL: https://issues.apache.org/jira/browse/DERBY-5317
> Project: Derby
> Issue Type: Bug
> Components: Network Client
> Affects Versions: 10.9.1.0
> Reporter: Kathey Marsden
> Assignee: Dyre Tjeldvoll
> Labels: derby_triage10_11, patch
> Attachments: derby-5317a.diff, derby-5317b.diff, derby-5317c.diff,
> Repro5317.java, Repro5317.java, traces_10_2and10_9.zip
>
>
> Investigating DERBY-5308, I found that the LobLimits.java test run with
> client fails with a NullPointerException.
>
> END setup
> ========================================
> START ClobTest #1 -insertClob of size = 2147483647
> Rows inserted with clob of size (2147483647) = 2
> ========================================
> ========================================
> START ClobTest #2 - SELECT CLOB of size = 2147483647
> Matched rows selected with clob of size(2147483647) =1
> ========================================
> ========================================
> START ClobTest #3 - SELECT CLOB of size = 2147483647
> Matched rows selected with clob of size(2147483647) =1
> ========================================
> ========================================
> START ClobTest #4 - select and then update clob of size= 2147483647 - Uses
> setClob api
> FAIL -- Unexpected exception:
> java.lang.NullPointerException
> at org.apache.derby.client.net.Request.sendBytes(Unknown Source)
> at
> org.apache.derby.client.net.Request.flushScalarStreamSegment(Unknown Source)
> at
> org.apache.derby.client.net.Request.padScalarStreamForError(Unknown Source)
> at org.apache.derby.client.net.Request.writePlainScalarStream(Unknown
> Source)
> at org.apache.derby.client.net.Request.writeScalarStream(Unknown
> Source)
> at org.apache.derby.client.net.Request.writeScalarStream(Unknown
> Source)
> at
> org.apache.derby.client.net.NetStatementRequest.buildEXTDTA(Unknown Source)
> at
> org.apache.derby.client.net.NetStatementRequest.writeExecute(Unknown Source)
> at
> org.apache.derby.client.net.NetPreparedStatement.writeExecute_(Unknown Source)
> at org.apache.derby.client.am.PreparedStatement.writeExecute(Unknown
> Source)
> at org.apache.derby.client.am.PreparedStatement.flowExecute(Unknown
> Source)
> at
> org.apache.derby.client.am.PreparedStatement.executeUpdateX(Unknown Source)
> at org.apache.derby.client.am.PreparedStatement.executeUpdate(Unknown
> Source)
> at
> org.apache.derbyTesting.functionTests.tests.largedata.LobLimits.selectUpdateClob(LobLimits.java:115
> 7)
> at
> org.apache.derbyTesting.functionTests.tests.largedata.LobLimits.clobTests(LobLimits.java:313)
> at
> org.apache.derbyTesting.functionTests.tests.largedata.LobLimits.runTests(LobLimits.java:177)
> at
> org.apache.derbyTesting.functionTests.tests.largedata.LobLimits.main(LobLimits.java:151)
> ========================================
> START ClobTest #12.1 -insertClob of size = 104857600
> NEGATIVE TEST - Expected Exception:
> EXPECTED SQL Exception: (08003) No current connection.
> ========================================
> START ClobTest #12.2 - SELECT CLOB of size = 104857600
> FAIL -- Unexpected exception:
> java.sql.SQLNonTransientConnectionException: No current connection.
> at
> org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown
> Source)
> at org.apache.derby.client.am.SqlException.getSQLException(Unknown
> Source)
> at org.apache.derby.client.am.PreparedStatement.setInt(Unknown Source)
> at
> org.apache.derbyTesting.functionTests.tests.largedata.LobLimits.selectClob(LobLimits.java:1007)
> In the derby.log I see
> derby.system.home=/local0/kmarsden/repro/largeData/testtrunkdnc/DerbyNetClient/LobLimits
> Database Class Loader started - derby.database.classpath=''
> Tue Jul 05 17:50:01 PDT 2011 Thread[DRDAConnThread_11,5,main] (DATABASE =
> wombat), (DRDAID = .-580681567053183
> 269{2}), Execution failed because of a Distributed Protocol Error:
> DRDA_Proto_SYNTAXRM; CODPNT arg = 200d; E
> rror Code Value = 1d. Plaintext connection attempt from an SSL enabled client?
> Tue Jul 05 17:50:01 PDT 2011 : Execution failed because of a Distributed
> Protocol Error: DRDA_Proto_SYNTAXRM;
> CODPNT arg = 200d; Error Code Value = 1d. Plaintext connection attempt from
> an SSL enabled client?
> org.apache.derby.impl.drda.DRDAProtocolException: Execution failed because of
> a Distributed Protocol Error: D
> RDA_Proto_SYNTAXRM; CODPNT arg = 200d; Error Code Value = 1d. Plaintext
> connection attempt from an SSL enable
> d client?
> at org.apache.derby.impl.drda.DRDAConnThread.throwSyntaxrm(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.invalidCodePoint(Unknown
> Source)
> at
> org.apache.derby.impl.drda.DRDAConnThread.parseEXCSQLSTTobjects(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.parseEXCSQLSTT(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
> Tue Jul 05 17:50:01 PDT 2011 Thread[DRDAConnThread_11,5,main] (DATABASE =
> wombat), (DRDAID = .-580681567053183
> 269{2}), Execution failed because of a Distributed Protocol Error:
> DRDA_Proto_SYNTAXRM; CODPNT arg = 200d; E
> rror Code Value = 1d. Plaintext connection attempt from an SSL enabled client?
> Tue Jul 05 17:50:01 PDT 2011 : Execution failed because of a Distributed
> Protocol Error: DRDA_Proto_SYNTAXRM;
> CODPNT arg = 200d; Error Code Value = 1d. Plaintext connection attempt from
> an SSL enabled client?
> org.apache.derby.impl.drda.DRDAProtocolException: Execution failed because of
> a Distributed Protocol Error: D
> RDA_Proto_SYNTAXRM; CODPNT arg = 200d; Error Code Value = 1d. Plaintext
> connection attempt from an SSL enable
> d client?
> at org.apache.derby.impl.drda.DRDAConnThread.throwSyntaxrm(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.invalidCodePoint(Unknown
> Source)
> at
> org.apache.derby.impl.drda.DRDAConnThread.parseEXCSQLSTTobjects(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.parseEXCSQLSTT(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
> ----------------------------------------------------------------
> Tue Jul 05 17:50:07 PDT 2011: Shutting down Derby engine
> ----------------------------------------------------------------
> Tue Jul 05 17:50:07 PDT 2011:
> To run the test, you have to remove largeData from DerbyNetClient.exclude and
> run
> java -Dframework=DerbyNetClient
> org.apache.derbyTesting.functionTests.harness.RunTest
> org.apache.derbyTesting.functionTests.tests.lageData.LobLimits.
> It took about 3.5 hours to occur.
> I will work on a smaller reproduction.
>
> 5,9 36%
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