 is complete</td>
</tr>
<tr>
<td><a href="https://issues.apache.org/jira/browse/DERBY-5561">DERBY-5561</a></td><td>Race conditions in LogicalConnection checking for a null physical connection</td>
</tr>
<tr>
<td><a href="https://issues.apache.org/jira/browse/DERBY-5552">DERBY-5552</a></td><td>Derby threads hanging when using ClientXADataSource and a deadlock or lock timeout occurs</td>
</tr>
<tr>
<td><a href="https://issues.apache.org/jira/browse/DERBY-5547">DERBY-5547</a></td><td>NSSecurityMechanismTest fi