D WLST Deprecated Features

Some WLST features are deprecated.

Implicit Imports

Implicit imports are deprecated, beginning in Release 12.2.1.2.

Currently, by default, when WLST is started, the weblogic.jar is automatically added to the Jython sys.path so that all weblogic-related classes referenced in weblogic.jar are loaded into the WLST namespace. You can just reference these weblogic classes in your py script by calling weblogic.class directly. There is no need to import those weblogic classes explicitly by calling them using from weblogic import class. This provides a convenient way to reference weblogic classes in your py script.

However, loading weblogic classes into the WLST namespace during WLST startup adds execution time during startup and can cause performance issues.

Use explicit imports for the WebLogic classes referenced in your scripts. To reduce startup time, use the -skipWLSModuleScanning WLST option to skip package scanning and caching for WebLogic Server modules, as described in Table 1-1. This option does not disable all implicit imports.

In a future release, WLST will disable weblogic class auto-loading during WLST startup. At that point, you will need to explicitly import classes using from weblogic import class. For example:

from weblogic.security.service import EJBResource

ejbRes = EJBResource('DDPoliciesEar', 'DDPolinEarMiniAppBean.jar',
                     'DDRolesAndPolicies', 'getSubject', 'Remote', None)