Getting Exception in jdbc connection got from DataSource in Oracle AS

Hi
i am using data source in my application.
When my application is invoked it gets the jdbc connection from the data source, performs set of operations and then releases the connection.
But if the application is invoked after a long time e.g. 10 hours then i get the following exceptions which i have logged:
Io exception: Connection reset
and the other exception is given below:
Closed Connection
The data-sources.xml is as follows:
<?xml version = '1.0' encoding = 'windows-1252'?>
<!DOCTYPE data-sources PUBLIC "Orion data-sources" "http://xmlns.oracle.com/ias/dtds/data-sources.dtd">
<data-sources>
<data-source
name="MYDS"
class="oracle.jdbc.pool.OracleConnectionCacheImpl"
location="jdbc/myDSCON"
connection-driver="oracle.jdbc.driver.OracleDriver"
username="xxxxxxxx"
password="xxxxxxxx"
url="jdbc:oracle:thin:@localhost:1521:orcl"
inactivity-timeout="30"
max-connections="100" >
<property name="cacheScheme" value="1" />
</data-source>
</data-sources>
Please let me know what is wrong with my application or configuration setting or something is wrong with oracle application server.

Hi,
I found one solution which is for 10.1.2.x and i am using Oc4j 10.1.3.1 but solution is below
Solution
There is a new setting called "ValidateConnections" from 10.1.2.x. This setting will make sure to check the validity of the connections before it is assigned to the application.
1. Download and apply the patch for unpublished bug 4305639 for your current 10.1.2.x version. If a patch is not already available then please submit a backport request to get the patch to your version.
2. Set the command line option "-DValidateConnections=true" and restart the container. This can be set via EM AS control or by manually updating opmn.xml file. After the changes the options should look like
<process-type id="oc4j_test1" module-id="OC4J">
<module-data>
<category id="start-parameters">
<data id="java-options" value="-server -Djava.security.policy=/opt/oracle/jw101202/j2ee/oc4j_test1/config/java2.policy -Djava.awt.headless=true -DValidateConnections=true" />
<data id="oc4j-options" value="-properties"/>
Regards,

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Regards
Edited by: Otein on 19-oct-2012 14:04

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<res-ref-name>jdbc/RM</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
sun-web.xml
<resource-ref>
<res-ref-name>jdbc/RM</res-ref-name>
<jndi-name>jdbc/RM</jndi-name>
</resource-ref>
In customer class,
220: protected void initDataSource() throws NamingException {
221: initContext = new InitialContext();
222: envContext = (Context) initContext.lookup("java:comp/env");
223: String dataSource = rConfigObject.getConfigValue("DATASOURCE");
224: rDataSource = (DataSource) envContext.lookup(dataSource);
225: }Exception occurs on line no. 222 already.
From server.log, we get
================
#|2005-06-03T11:36:11.562+0800|WARNING|sun-appserver-ee8.1|javax.enterprise.system.stream.err|_ThreadID=10;|
javax.naming.NameNotFoundException: No object bound for java:comp/env [Root exception is java.lang.NullPointerException]
at com.sun.enterprise.naming.java.javaURLContext.lookup(javaURLContext.java:161)
at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:288)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at com.ns.DBObject.initDataSource(DBObject.java:222)
at com.ns.DBObject.connectPool(DBObject.java:213)
at com.ns.DBObject.<init>(DBObject.java:91)
at com.ns.DBObject.getInstance(DBObject.java:122)
at com.ncharter.NCContextListener.contextInitialized(NCContextListener.java:28)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4010)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4525)
===============
Do you have any ideas on this problem? Thanks.
Regards,
Angus

Try asking the Customer to fire up the JNDI browser in the admin console and try to browse the JNDI tree.
What class is the InitialContext.lookup() happening in? Is that getting executed in the servlet class or a standalone client?
thanks.

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