JMS Client Cannot Create Connection 

Problem Description

The user reports that a JMS client cannot create a connection to the JMS provider. The exception that the createConnection() method call throws is as follows:

javax.jms.JMSSecurityException: Cannot create connection with user X.

com.sap.jms.protocol.notification.ServerExceptionResponse.getException(ServerExceptionResponse.java:231)

com.sap.jms.client.connection.ConnectionFactory.checkForException(ConnectionFactory.java:405)

com.sap.jms.client.connection.ConnectionFactory.sendConnectionCreateRequest(ConnectionFactory.java:386)

com.sap.jms.client.connection.ConnectionFactory.createConnection(ConnectionFactory.java:319)

Scenario Type:	Error analysis
NetWeaver Component:	J2EE Engine
Validity:	J2EE 6.30 and higher

Possible Error Causes

●     User password for the JMS provider is not valid

●     User X does not exist

●     User X is locked

Decision Roadmap

Analysis

User password for the JMS provider is not valid

The JMS client uses method createQueue(Topic)Connection(username, password) to establish a connection to the JMS provider.

Solution:

●     If user X exists, change the user’s password in the JMS client method call createConnection(username, password)

●     If user X does not exist, then replace both the user name and password in the above call with an existing one.

User X does not exist

The JMS client uses createQueue(Topic)Connection() (that is, without specifying a user name/password combination) to establish a connection to the JMS provider.

Solution:

Update the user in the definition of the corresponding connection factory (via VisualAdministrator  →  server_Z_T  →  Services  →  JMS Provider  →  INSTANCE_NAME  →  Connection Factories tab).

User X is locked

The client will get the following exception:

javax.jms.JMSSecurityException: Cannot create connection. The user X is locked.

com.sap.jms.protocol.notification.ServerExceptionResponse.getExceptio

n(ServerExceptionResponse.java:231)

com.sap.jms.client.connection.ConnectionFactory.checkForException(Con

nectionFactory.java:405)

com.sap.jms.client.connection.ConnectionFactory.sendConnectionCreateR

equest(ConnectionFactory.java:386)

Solution:

If user X is locked, then ask the J2EE Engine administrator to unlock it (see also User Account Is Locked).