Defining the server runtime environments preferences
Using the Preferences page, you can direct the workbench to use a specific runtime environment of an application server for compiling, testing, or running your application.
Procedure
What to do next
Important: When you use Rational Application Developer, if you change the target server
for an EJB project at 2.1 specification-level or earlier, regenerate the deployment code by
right-clicking the EJB project, and selecting . If you attempt to run an application on a server target that is different from its
generated deployment code, the application fails to run.
When you deploy Java EE applications in WebSphere Developer Tools, you do not need to select Prepare for deployment before you deploy or run any Java EE applications on WebSphere Application Server traditional or Liberty.