This function gets the group. If the group does not exist, it returns null.

Signature:

ids:lookupGroup(groupName, realmName)

Arguments:

• groupName: The group name.

• realmName: The realm name. This is optional. If not specified, the default realm name is assumed.

Property IDs:

• namespace-uri:http://xmlns.oracle.com/bpel/services/IdentityService/xpath

• namespace-prefix: ids