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https://issues.apache.org/jira/browse/DERBY-4314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12859879#action_12859879
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Lily Wei commented on DERBY-4314:
---------------------------------
Thank you, Knut. You are right. The repro is passing with 6b. I did not merge
right after Connection.java has newer version. However, I am still seeing
J2EEDataSourceTest exception from DERBY-1325 repro. I am seeing exception as
following:
1) testSetIsolationWithStatement(org.apache.derbyTesting.functionTests.tests.jdb
capi.J2EEDataSourceTest)org.apache.derby.client.am.XaException: XAER_DUPID : Err
or executing a XAResource.start(), server returned XAER_DUPID.
at org.apache.derby.client.net.NetXAResource.throwXAException(NetXAResou
rce.java:756)
at org.apache.derby.client.net.NetXAResource.start(NetXAResource.java:64
7)
at org.apache.derbyTesting.functionTests.tests.jdbcapi.J2EEDataSourceTes
t.testSetIsolationWithStatement(J2EEDataSourceTest.java:1623)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:
109)
I am thinking this is related to piggy backing of session data. However, I am
all open to new suggestion.
> With derby client setTransactionIsolation executes and commits even if
> isolation has not changed
> -------------------------------------------------------------------------------------------------
>
> Key: DERBY-4314
> URL: https://issues.apache.org/jira/browse/DERBY-4314
> Project: Derby
> Issue Type: Improvement
> Components: JDBC, Network Client
> Affects Versions: 10.1.3.1, 10.2.2.0, 10.3.3.0, 10.4.2.0, 10.5.1.1,
> 10.6.0.0
> Reporter: Kathey Marsden
> Priority: Minor
> Attachments: DERBY-4314-2.diff, DERBY-4314-3.diff, DERBY-4314-5.diff,
> derby-4314-6a-initial_piggybacking.diff,
> derby-4314-6a-initial_piggybacking.stat,
> DERBY-4314-6b-combinepiggybacking.diff, DERBY-4314.diff, TestConnReuse.java
>
>
> With in EmbedConnection.setIsolation() we have a check to see if the
> isolation level is the same and if so just return without doing a commit:
> public void setTransactionIsolation(int level) throws SQLException {
> if (level == getTransactionIsolation())
> return;
> with org.apache.derby.client.am.Connection we have no such check. It would be
> good if the client driver acted like embedded.
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