Make the Archive type first in the API, as it allows us to introduce defaults for the name and even introduce an extension constant.

ShrinkWrap.create(Class<T> type)
ShrinkWrap.create(Class<T> type, String name)

ShrinkWrap.create(Class<T> type, ExtensionType ext) ***maybe
ShrinkWrap.create(Class<T> type, String name, ExtensionType ext) ***maybe

For the simplest case (Weld SE Arquillian tests for instance), the name would be defaulted.

ShrinkWrap.create(JavaArchive.class)

The current usage would be flipped

ShrinkWrap.create(JavaArchive.class, "test.jar")

We could consider getting rid of the string-based extension classifier

ShrinkWrap.create(JavaArchive.class, "test", JAR)

Or, if you wanted to specify just an extension (for instance to create a WAR), you could do:

ShrinkWrap.create(JavaArchive.class, WAR)

To take another angle, maybe the extension can be implied based on the archive type:

JavaArchive = ".jar"
EnterpriseArchive = ".ear"
WebArchive = ".war"

In that case, we can just get back to:

ShrinkWrap.create(WebArchive.class)