DB lookup problem with Sun One App. Server 7.0,MySQL3.x - Red hat linux 7.2

Question

Hi Group,
I have deployed my project in sun one application server 7.0 installed in red hat linux 7.2 and database is mysql. Its working in fine in normal conditions. I could not able to get connection from datasource after I kept my server 10 hours ideal. Again its working fine once I restarted the server. Please give me any solution to prevent this.
The same project is working fine under all conditions in Sun one app server 7.0 installed in windows 2000 server without any look up probem. I Got this problem only in linux OS.
mysql datasource class com.mysql.jdbc.jdbc2.optional.MysqlDataSource
please find the below code..
Context ctx = new InitialContext();
Datasource testDS = (javax.sql.DataSource)ctx.lookup( "jdbc/testDS");
Connection con = testDs.getConnection();
connection pool settings
<jdbc-connection-pool steady-pool-size="8" max-pool-size="32" max-wait-time-in-millis="0" pool-resize-quantity="2" idle-timeout-in-seconds="0" is-isolation-level-guaranteed="false" is-connection-validation-required="false" connection-validation-method="auto-commit" fail-all-connections="false" datasource-classname="com.mysql.jdbc.jdbc2.optional.MysqlDataSource" name="testCP">
<property value="localhost" name="serverName"/>
<property value="3306" name="portNumber"/>
<property value="root" name="user"/>
<property value="test" name="databaseName"/>
</jdbc-connection-pool>
Regards,
Hari haran

Answer 1

My team solved the problem and I thought that we would share.
The version of Xalan that was packaged with the JRE, that is installed by the Sun One app server, was at least 2 versions out of date. Updating the Xalan package solves the issue and the WAR file now works.
Again, this appears to be only on the Linux version as the package deploys and works perfectly on the Windows version.