com.ibm.mm.sdk.common.DKDatastoreAccessError: DGL0394A: Error in ::DriverManager.getConnection; cmbicmenv.ini (The system cannot find the file specified.); [SERVER = ICMNLSDB, USERID = ]

com.ibm.mm.sdk.common.DKDatastoreAccessError: DGL0394A: Error in ::DriverManager.getConnection; cmbicmenv.ini (The system cannot find the file specified.); [SERVER = ICMNLSDB, USERID = ]
    at com.ibm.mm.sdk.server.DKDatastoreICM.connect(DKDatastoreICM.java:3387)
    at com.ibm.mm.sdk.common.DKDatastorePool._createNewConnection(DKDatastorePool.java:1085)
    at com.ibm.mm.sdk.common.DKDatastorePool.access$000(DKDatastorePool.java:253)
    at com.ibm.mm.sdk.common.DKDatastorePool$DatastorePooledObjectManager.create(DKDatastorePool.java:1224)
    at com.ibm.mm.sdk.internal.PSimplePool._createPooledObject(PSimplePool.java:850)
    at com.ibm.mm.sdk.internal.PSimplePool.reserve(PSimplePool.java:553)
    at com.ibm.mm.sdk.common.DKDatastorePool.initConnections(DKDatastorePool.java:841)


One of the reasons is missing db2java.zip file

In Webpshere Application Server 7.0 Admin Console, make sure you add path for db2java.zip at

Application servers > serverName > Process definition > Java Virtual Machine > Configuration >Classpath