db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jon Steinich (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-5603) EmbedConnection.clearLOBMapping() incorrectly clears lobFiles causing a ConcurrentModificationException
Date Sat, 04 Feb 2012 18:27:54 GMT
EmbedConnection.clearLOBMapping() incorrectly clears lobFiles causing a ConcurrentModificationException
-------------------------------------------------------------------------------------------------------

                 Key: DERBY-5603
                 URL: https://issues.apache.org/jira/browse/DERBY-5603
             Project: Derby
          Issue Type: Bug
          Components: JDBC
    Affects Versions: 10.8.2.2, 10.5.1.1
         Environment: Win 7 64 bit
JDK 1.6.0_24
            Reporter: Jon Steinich
            Priority: Critical


In EmbedConnection.clearLOBMapping()  the code which iterates over lobFiles has a finally
block which clears the Set.  This causes a ConcurrentModificationException to be thrown and
even using a concurrent data structure would still result in only one LOBFile being correctly
closed.

This will occur anytime the lobFiles Set contains more than 1 LOBFile.

Stack Trace:
java.sql.SQLException: Java exception: ': java.util.ConcurrentModificationException'. 
 at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source) 
 at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source) 
 at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source) 
 at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)

 at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source) 
 at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source) 
 at org.apache.derby.impl.jdbc.EmbedConnection.commit(Unknown Source) 
<lines removed>
Caused by: java.sql.SQLException: Java exception: ': java.util.ConcurrentModificationException'.

 at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source) 
 at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown
Source) 
 ... 16 more 
Caused by: java.util.ConcurrentModificationException 
 at java.util.HashMap$HashIterator.nextEntry(Unknown Source) 
 at java.util.HashMap$KeyIterator.next(Unknown Source) 
 at org.apache.derby.impl.jdbc.EmbedConnection.clearLOBMapping(Unknown Source) 
 ... 10 more

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message