The tomcat7-maven-plugin fails to deploy to a server that requires client authentication. Running with -Djavax.net.ssl.debug=all reveals that maven never opens the keystore file.
Tried: Maven 3.0.4 and 3.0.5, both as distributed and with the replacement wagon-lightweight-http jar mentioned in
WAGON-372. Tried with versions 2.0 ad 2.1 of the tomcat7-maven-plugin.
Very likely related: https://jira.codehaus.org/browse/WAGON-372