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https://issues.apache.org/jira/browse/DERBY-5806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13811136#comment-13811136
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ASF subversion and git services commented on DERBY-5806:
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Commit 1537874 from [~dyret] in branch 'code/trunk'
[ https://svn.apache.org/r1537874 ]
DERBY-5806: Fix parsing of empty string in DRDAConnThread. Set
ClientStatement.sqlMode_ correctly for empty statements.
> Trying to prepare statement with no text causes DRDA protocol exception
> -----------------------------------------------------------------------
>
> Key: DERBY-5806
> URL: https://issues.apache.org/jira/browse/DERBY-5806
> Project: Derby
> Issue Type: Bug
> Components: Network Client, Network Server
> Affects Versions: 10.10.1.1
> Reporter: Bryan Pendleton
> Assignee: Dyre Tjeldvoll
> Priority: Minor
> Labels: derby_triage10_10, derby_triage10_11
> Attachments: derby-5806a.diff
>
>
> I accidentally stumbled into a rather awkward bit of error handling.
> On an IJ session running client/server, I tried:
> ij> connect 'jdbc:derby://localhost:1527/brydb';
> ij> prepare seeMenu as '';
> ERROR 08006: A network protocol error was encountered and the connection has
> been terminated: A PROTOCOL Data Stream Syntax Error was detected. Reason:
> 0x9,236. Plaintext connection attempt to an SSL enabled server?
> On the Network Server side, I see:
> Sat Jun 09 09:28:51 PDT 2012 : Execution failed because of a Distributed
> Protocol Error: DRDA_Proto_SYNTAXRM; CODPNT arg = 2414; Error Code Value =
> e. Plaintext connection attempt from an SSL enabled client?
> org.apache.derby.impl.drda.DRDAProtocolException: Execution failed because of
> a Distributed Protocol Error: DRDA_Proto_SYNTAXRM; CODPNT arg = 2414; Error
> Code Value = e. Plaintext connection attempt from an SSL enabled client?
> at
> org.apache.derby.impl.drda.DRDAConnThread.throwSyntaxrm(DRDAConnThread.java:537)
> at
> org.apache.derby.impl.drda.DRDAConnThread.missingCodePoint(DRDAConnThread.java:567)
> at
> org.apache.derby.impl.drda.DRDAConnThread.parsePRPSQLSTTobjects(DRDAConnThread.java:3858)
> at
> org.apache.derby.impl.drda.DRDAConnThread.parsePRPSQLSTT(DRDAConnThread.java:3788)
> at
> org.apache.derby.impl.drda.DRDAConnThread.processCommands(DRDAConnThread.java:831)
> at
> org.apache.derby.impl.drda.DRDAConnThread.run(DRDAConnThread.java:295)
> It seems like the error handling could be improved here, for what is
> essentially a syntax error on my part.
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