You have to link the library sqljdbc_auth.dll to your project.
- Go to the properties of your project (right-click on the project in the Package Explorer, choose Properties)
- Choose Java Build Path
- On the Source tab page, expand the node of your project in the box 'Source folders on build path'.
- Click the item 'Native library location'.
- Click Edit.
- Choose via Workspace or External Folder the location of the folder of the library. In most cases, the library is located in the WEB-INF\lib folder of your project.
It is also possible to add the following JVM parameter to the execution path (Eclipse: Run Configuration):
-Djava.library.path=WEB-INF\lib