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From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1108) The test jdbcapi/setTransactionIsolation.java fails with ibm jvm1.5
Date Tue, 20 Jun 2006 00:17:30 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1108?page=comments#action_12416825 ] 

Kathey Marsden commented on DERBY-1108:
---------------------------------------

Thanks Army for the comment.  I think I understand escape analysis better now and how it relatest
to this issue and I think

1) The JVM is ok.  
It should garbage collect and finalize  rs and all its innards because they can never really
be used again.

2) Derby is ok. 
 setTransactionIsolation() does not need to consider a  ResultSet that can never be used again
.

3) The test is not ok. 
 To test what it wants to test, that we can't change the isolation in the middle of retrieving
results on a held cursor,  it should  have code to use rs after setTransactionIsolation, e.g.
add an 
rs.next() after setTransactionIsolation()

Does that sound right?


> The test jdbcapi/setTransactionIsolation.java fails with ibm jvm1.5
> -------------------------------------------------------------------
>
>          Key: DERBY-1108
>          URL: http://issues.apache.org/jira/browse/DERBY-1108
>      Project: Derby
>         Type: Bug

>   Components: Regression Test Failure
>     Versions: 10.2.0.0
>  Environment: java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build pwi32dev-20051104)
> IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 Windows XP x86-32 j9vmwi3223-2005110
> 3 (JIT enabled)
> J9VM - 20051027_03723_lHdSMR
> JIT  - 20051027_1437_r8
> GC   - 20051020_AA)
> JCL  - 20051102
>     Reporter: Manjula Kutty
>  Attachments: test.java
>
> The test  jdbcapi/setTransactionIsolation.java fails with ibmjvm15.  I think the cause
of this failure is , the jvm is not throwing an exception while trying to change the transaction
isolation when there is holdable cursor on  a resultset. Other jvms like sun jdk1.5, ibm142
throws the expected exception. while ibm15 does allow to change the transaction isolation
when there is a hold cursor on a result set.
> Already reported this issue with the ibmjvm people and they are looking in to it

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