Access Data Source form Application Client

Hi All
i try to access oracle application server r3 emilated XA data source using aplication client.But it fails.if some one know how to do that ples let me know.
Note :- this works in other application servers (weblogic and websphere)
Thanks
Asanka Priyanjith

HI Avi
It is stand-alone java class that is outside of OC4J Package as JAR file. i Add application application-client.xml and orion-application-client.xml in to META-INF and add resource-ref element to XMLs as well. but it does not work. i am using oracle thin dirver in application server side.
relavent code is ..
DataSource ds = null;
Connection db;
try {
Context initCtx = getInitialContext();
ds = (DataSource) initCtx.lookup(name);
catch (javax.naming.NamingException e) {
if (!ignoreNamingException) {
throw new javax.ejb.CreateException(e.toString());
catch (Exception e) {
throw new javax.ejb.CreateException(e.toString());
db = ds.getConnection(); // This line does not works.
lookup works, But after that i can not get a connection.
java.lang.NoSuchMethodError: oracle.sql.CharacterSet.stringToASCII(Ljava/lang/St
ring;)[B
at oracle.jdbc.driver.DBConversion.stringToDriverCharBytes(DBConversion.
java:386)
at oracle.jdbc.driver.DBConversion.StringToCharBytes(DBConversion.java:4
52)
at oracle.jdbc.driver.T4CTTIoauthenticate.<init>(T4CTTIoauthenticate.jav
a:152)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:294)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:
430)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:151)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtensio
n.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:608)
at oracle.oc4j.sql.DriverDataSource.getConnection(DriverDataSource.java:
116)
at oracle.oc4j.sql.DriverDataSource.getConnection(DriverDataSource.java:
75)
at oracle.oc4j.sql.DataSourceConnectionPoolDataSource.getPooledConnectio
n(DataSourceConnectionPoolDataSource.java:57)
at oracle.oc4j.sql.xa.EmulatedXADataSource.getXAConnection(EmulatedXADat
aSource.java:55)
at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createXAConnection(M
anagedConnectionFactoryImpl.java:239)
at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createManagedConnect
ion(ManagedConnectionFactoryImpl.java:198)
at com.evermind.server.connector.ApplicationConnectionManager.createMana
gedConnection(ApplicationConnectionManager.java:1333)
at oracle.j2ee.connector.ConnectionPoolImpl.createManagedConnectionFromF
actory(ConnectionPoolImpl.java:324)
at oracle.j2ee.connector.ConnectionPoolImpl.access$800(ConnectionPoolImp
l.java:95)
at oracle.j2ee.connector.ConnectionPoolImpl$NonePoolingScheme.getManaged
Connection(ConnectionPoolImpl.java:1209)
at oracle.j2ee.connector.ConnectionPoolImpl.getManagedConnection(Connect
ionPoolImpl.java:782)
at com.evermind.server.connector.ApplicationConnectionManager.getConnect
ionFromPool(ApplicationConnectionManager.java:1532)
at com.evermind.server.connector.ApplicationConnectionManager.acquireCon
nectionContext(ApplicationConnectionManager.java:1477)
at com.evermind.server.connector.ApplicationConnectionManager.allocateCo
nnection(ApplicationConnectionManager.java:1423)
at oracle.j2ee.connector.OracleConnectionManager.unprivileged_allocateCo
nnection(OracleConnectionManager.java:244)
at oracle.j2ee.connector.OracleConnectionManager.allocateConnection(Orac
leConnectionManager.java:198)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.jav
a:197)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.jav
a:142)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java
Thanks
Asanka

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Access Data Source form Application Client

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