Warbler hangs

When trying to create a WAR file, Warbler hangs. I’ve tried running it
with the verbose and trace options but those options don’t provide any
information.

I’ve been successful building a WAR file with my project in the past,
the difference this time is 29 Java JAR files were added to the
project’s LIB directory.

A WAR file gets created (35mb) before Warbler hangs. I’ve looked at the
contents and it looks mostly intact but when I install it, the app
doesn’t run.

Questions:

  1. Is there a way to get better diagnostics on why Warbler hangs?

  2. Is there a spec on what needs to be the WAR file? I’m thinking that I
    can manually add in the missing files if I know what I’m looking for.