Unable to enlist XAResource

Question

Hi,
I'm new to Weblogic JTA when I'm trying to enlist XAResource -I'm getting an error-------:javax.transaction.SystemException: You may enlist a resource only on a server
     at weblogic.transaction.internal.TransactionImpl.enlistResource(TransactionImpl.java:467)
If I don't enlist the xaResource then at the time of -commit()------xaRes.commit(xid, false); it's giving XAException-------
oracle.jdbc.xa.OracleXAException
     at oracle.jdbc.xa.OracleXAResource.checkError(OracleXAResource.java:938)
In case, I use only Transaction object and not the XAResource objcet for commit() or Rollback(); then no errror is giben but the change is not reflecting in at the DB end.
I'm attaching the class that I've written for JTA connection---
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.XAConnection;
import weblogic.transaction.TransactionManager;
//import javax.transaction.Transaction;
//import javax.transaction.TransactionManager;
//import javax.transaction.UserTransaction;
import javax.transaction.Status;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;
import weblogic.transaction.ClientTxHelper;
import weblogic.transaction.ServerTransactionInterceptor;
import weblogic.transaction.ServerTransactionManager;
import weblogic.transaction.Transaction;
import weblogic.transaction.TransactionHelper;
import weblogic.transaction.internal.ClientTransactionManagerImpl;
import weblogic.transaction.internal.ServerTransactionManagerImpl;
import weblogic.transaction.internal.TransactionHelperImpl;
public class _JTAConnectionUtility  {
     Connection conn = null;
     public void testJTA()
          try{
               oracle.jdbc.xa.client.OracleXADataSource xadsOra = new oracle.jdbc.xa.client.OracleXADataSource();
               String url = "jdbc:oracle:thin:@it12:1521:orcl";
               xadsOra.setURL(url);
               xadsOra.setDatabaseName("orcl");
               xadsOra.setDataSourceName("jdbc/testDS");
               xadsOra.setDriverType("thin");
               XAConnection xaConn = xadsOra.getXAConnection("hr", "hr");
               System.out.println("XAConnection----->" +xaConn.toString());
               conn= xaConn.getConnection();
               System.out.println("Connection value --------------->" +conn.toString());
               XAResource xaRes = xaConn.getXAResource();
               System.out.println("XAResource----------->" +xaRes.toString());
               System.out.println("Data Source Name------>" xadsOra.getDataSourceName()"DB name----->"+xadsOra.getDatabaseName());
               Hashtable env = new Hashtable();
               env.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
               env.put(Context.PROVIDER_URL, "t3://localhost:7001");
               env.put(Context.SECURITY_PRINCIPAL, "weblogic");
               env.put(Context.SECURITY_CREDENTIALS, "weblogic");
               Context ctx = new InitialContext(env);
               System.out.println("Before lookup to User Transaction & Transaction Manager");
               //javax.transaction.UserTransaction transaction = (UserTransaction) ctx.lookup("javax.transaction.UserTransaction");
               //System.out.println("After Lookup status of User Transaction is ------>" +transaction.getStatus());
               weblogic.transaction.TransactionManager transactionManager = (TransactionManager) ctx.lookup("weblogic.transaction.TransactionManager");//"javax.transaction.TransactionManager"
               System.out.println("After Lookup status of Transaction Manager is ------>" +transactionManager.getStatus());
               try{
                    transactionManager.begin();
                    //transactionManager.registerResource("", xaRes);
                    weblogic.transaction.Transaction transaction = (Transaction) TransactionHelper.getTransactionHelper().getTransaction();
                    //weblogic.transaction.Transaction transaction =(Transaction) ServerTransactionManagerImpl.getTransactionManager().getTransaction();
                    System.out.println("Transaction Object is ----------->" + transaction);
                    Xid xid = transaction.getXid();
                    System.out.println("XID is------>"+xid);
                    System.out.println("Value of XAResource inside 2nd try bolck is-------->" +xaRes);
                    boolean enlistRes = transaction.enlistResource(xaRes);
                    System.out.println("Enlisted Resource----------->" + enlistRes);
                    System.out.println("Value os connection inside 2nd try block is-------->" +conn);
                    System.out.println("Transaction Manager status is ---------------->" +transactionManager.getStatus());
// simple insert query.
                    if(Status.STATUS_ACTIVE==transactionManager.getStatus()){
                         System.out.println("Inside if");
                         int ret=xaRes.prepare(xid);
                         if(ret==XAResource.XA_OK)
                              xaRes.commit(xid, false);
                         transaction.commit();
                    }else if(Status.STATUS_ROLLEDBACK==transactionManager.getStatus()){
                         System.out.println("Inside else block");
                         xaRes.rollback(xid);
                         transaction.rollback();
               } catch (Exception e){
                    e.printStackTrace();
     } catch (Exception e){
          e.printStackTrace();
     }finally {
          try{
               if(conn!= null)
                    conn.close();
          }catch(SQLException e){
               e.printStackTrace();
     public static void main(String[] args) {
          new _JTAConnectionUtility().testJTA();
          System.out.println("CHECK");
}

Answer 1

Hi,
I'm new to Weblogic JTA when I'm trying to enlist XAResource -I'm getting an error-------:javax.transaction.SystemException: You may enlist a resource only on a server
     at weblogic.transaction.internal.TransactionImpl.enlistResource(TransactionImpl.java:467)
If I don't enlist the xaResource then at the time of -commit()------xaRes.commit(xid, false); it's giving XAException-------
oracle.jdbc.xa.OracleXAException
     at oracle.jdbc.xa.OracleXAResource.checkError(OracleXAResource.java:938)
In case, I use only Transaction object and not the XAResource objcet for commit() or Rollback(); then no errror is giben but the change is not reflecting in at the DB end.
I'm attaching the class that I've written for JTA connection---
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.XAConnection;
import weblogic.transaction.TransactionManager;
//import javax.transaction.Transaction;
//import javax.transaction.TransactionManager;
//import javax.transaction.UserTransaction;
import javax.transaction.Status;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;
import weblogic.transaction.ClientTxHelper;
import weblogic.transaction.ServerTransactionInterceptor;
import weblogic.transaction.ServerTransactionManager;
import weblogic.transaction.Transaction;
import weblogic.transaction.TransactionHelper;
import weblogic.transaction.internal.ClientTransactionManagerImpl;
import weblogic.transaction.internal.ServerTransactionManagerImpl;
import weblogic.transaction.internal.TransactionHelperImpl;
public class _JTAConnectionUtility  {
     Connection conn = null;
     public void testJTA()
          try{
               oracle.jdbc.xa.client.OracleXADataSource xadsOra = new oracle.jdbc.xa.client.OracleXADataSource();
               String url = "jdbc:oracle:thin:@it12:1521:orcl";
               xadsOra.setURL(url);
               xadsOra.setDatabaseName("orcl");
               xadsOra.setDataSourceName("jdbc/testDS");
               xadsOra.setDriverType("thin");
               XAConnection xaConn = xadsOra.getXAConnection("hr", "hr");
               System.out.println("XAConnection----->" +xaConn.toString());
               conn= xaConn.getConnection();
               System.out.println("Connection value --------------->" +conn.toString());
               XAResource xaRes = xaConn.getXAResource();
               System.out.println("XAResource----------->" +xaRes.toString());
               System.out.println("Data Source Name------>" xadsOra.getDataSourceName()"DB name----->"+xadsOra.getDatabaseName());
               Hashtable env = new Hashtable();
               env.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
               env.put(Context.PROVIDER_URL, "t3://localhost:7001");
               env.put(Context.SECURITY_PRINCIPAL, "weblogic");
               env.put(Context.SECURITY_CREDENTIALS, "weblogic");
               Context ctx = new InitialContext(env);
               System.out.println("Before lookup to User Transaction & Transaction Manager");
               //javax.transaction.UserTransaction transaction = (UserTransaction) ctx.lookup("javax.transaction.UserTransaction");
               //System.out.println("After Lookup status of User Transaction is ------>" +transaction.getStatus());
               weblogic.transaction.TransactionManager transactionManager = (TransactionManager) ctx.lookup("weblogic.transaction.TransactionManager");//"javax.transaction.TransactionManager"
               System.out.println("After Lookup status of Transaction Manager is ------>" +transactionManager.getStatus());
               try{
                    transactionManager.begin();
                    //transactionManager.registerResource("", xaRes);
                    weblogic.transaction.Transaction transaction = (Transaction) TransactionHelper.getTransactionHelper().getTransaction();
                    //weblogic.transaction.Transaction transaction =(Transaction) ServerTransactionManagerImpl.getTransactionManager().getTransaction();
                    System.out.println("Transaction Object is ----------->" + transaction);
                    Xid xid = transaction.getXid();
                    System.out.println("XID is------>"+xid);
                    System.out.println("Value of XAResource inside 2nd try bolck is-------->" +xaRes);
                    boolean enlistRes = transaction.enlistResource(xaRes);
                    System.out.println("Enlisted Resource----------->" + enlistRes);
                    System.out.println("Value os connection inside 2nd try block is-------->" +conn);
                    System.out.println("Transaction Manager status is ---------------->" +transactionManager.getStatus());
// simple insert query.
                    if(Status.STATUS_ACTIVE==transactionManager.getStatus()){
                         System.out.println("Inside if");
                         int ret=xaRes.prepare(xid);
                         if(ret==XAResource.XA_OK)
                              xaRes.commit(xid, false);
                         transaction.commit();
                    }else if(Status.STATUS_ROLLEDBACK==transactionManager.getStatus()){
                         System.out.println("Inside else block");
                         xaRes.rollback(xid);
                         transaction.rollback();
               } catch (Exception e){
                    e.printStackTrace();
     } catch (Exception e){
          e.printStackTrace();
     }finally {
          try{
               if(conn!= null)
                    conn.close();
          }catch(SQLException e){
               e.printStackTrace();
     public static void main(String[] args) {
          new _JTAConnectionUtility().testJTA();
          System.out.println("CHECK");
}