Minimizing Byte Code 

Enabling a Dynpro Development Component (DC) for class file minimization triggers a change in the definition of the.dcdef file which is part of an open Designtime Repository (DTR) Activity.

If problems occur during the build of dependant DCs or at runtime, you can disable the Class File Minimizer for the DC at any time.

More information: Web Dynpro Class File Minimizer

Procedure

       1.      In Web Dynpro Explorer, expand the DC and choose Properties from the context menu.

       2.      Choose list item Building on the left. From the dropdown list minimize byte code, select entry auto.