[jira] [Commented] (OPENJPA-2778) Error on Oracle LOB handling

["Antonio Damato (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OPENJPA-2778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17096551#comment-17096551 ] 

Antonio Damato commented on OPENJPA-2778:
-----------------------------------------

Hi,

I hope to help, I ran the unit test using Oracle Database 12c Release 12.1.0.2.0, OpenJPA 3.1.0 with no exceptions. Log is attached.

Antonio

[^test.log]

> Error on Oracle LOB handling
> ----------------------------
>
>                 Key: OPENJPA-2778
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2778
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jdbc, jpa
>    Affects Versions: 2.1.0, 2.2.0, 2.4.0, 2.4.3, 3.0.0
>            Reporter: Juri Berlanda
>            Assignee: Mark Struberg
>            Priority: Major
>         Attachments: test.log
>
>
> I get the following error
> {{ORA-24816: Expanded non LONG bind data supplied after actual LONG or LOB column}}
> on one of our queries.
> The Entity I am trying to write is relatively complicated (includes @Embedded and inheritance), but for legal reasons I am not allowed to disclose the code.
> What seems to happen is, that the not all CLOB columns are updated at the end of the update statement.
> From logs I see:
> {{databaseProductName: Oracle}}
>  {{databaseProductVersion: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production}}
>  {{Using dictionary class "org.apache.openjpa.jdbc.sql.OracleDictionary" (Oracle Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production}}
> I reproduced the bug using all of Oracle driver 12.1.0.2, 12.2.0.1 and 18.3.
> Unfortunately I cannot downgrade further then version 2.4.0, since our codebase uses Java8 features.
> Hibernate does not show the described behavior, neither does the same code on PostgreSQL.
> I am happy to help debug and fix the issue, but I'd need some guidance (i.e. where to look).
> EDIT: It turns out this issue is very easily reproducible. I created a minimal project doing so at [https://github.com/j-be/test-openjpa-2778]. No inheritance or @Embedded involved.
> EDIT: Using the test project I can trace it back as far as OpenJPA 2.1.0. 2.0.1 does not seem to be affected, I get a bunch of enhancement exceptions, so not sure whether that is a valid testcase.



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