How normal jar library is different from ADF Library?

Whenever you create a deployment profile for the model project in ADF you wil select the ADF Library type rather an ordinary library type (java jar type)

Both act as a library archive supporting jar and zip files

What is the difference then?

• ADF library differ in a way that it behaves. It has the uniqueness of automatically pulling in the dependent jar files that is referred by any of the files and written in to the manifest files. The dependent libraries that are needed at runtime is pulled n by Jdeveloper as secondary imports.
• The library exposes the meta data files likes task flows allowing the user to drag and drop in their files as dependent files which normal jar will not expose and support. The dropped taskflow will be added as a region in the page.