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https://issues.apache.org/jira/browse/DERBY-6923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15887232#comment-15887232
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Bryan Pendleton commented on DERBY-6923:
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Thank you Gordon for the additional information.
Can you attach the test program which produces this most recent crash?
>From a quick check of the source code, it appears that the "parameterMetaData"
>is NULL.
I believe this crash is a different bug than the original bug, although perhaps
they are related.
parameterMetaData, I believe, is supposed to be constructed when the prepared
statement has
the "prepare" method invoked on it, but somehow that went wrong in this
particular case?
If possible, could you please open a new JIRA issue, attach the test program
which produces
the NullPointerException, and mark the new issue as "related to" this issue
with a JIRA "link"?
Thanks!
> Passing a ClientClob or ClientBlob from another connection to an INSERT
> statement results in 'null' being written.
> ------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-6923
> URL: https://issues.apache.org/jira/browse/DERBY-6923
> Project: Derby
> Issue Type: Bug
> Components: Network Client, Network Server
> Affects Versions: 10.13.1.1
> Environment: Java 8
> MacOS
> Windows
> Reporter: Gordon Innes
> Priority: Critical
> Attachments: DerbyEmbeddedOnly.java, DerbyNetworkOnly.java,
> DerbyNetworkRead.java, DerbyNetworkWrite.java
>
>
> When assigning a Blob or Clob from a ResultSet to a PreparedStatement
> parameter on a second connection, null is written to the column instead.
> Attached the same example using Embedded->Embedded, Embedded->Network,
> Network->Embedded and Network->Network.
> Only the Network->Network example exhibits the fault.
> Originally discovered in HA-JDBC's sync code with 2 derby instances on
> Windows. Example were tested using MacOS. Both were running on Oracle Java 8
> VMs.
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