Some times deployments fail because developers provide the wrong plan.xml files,
plan.xml not having the correct <module-name> or any other parameters so to cross check what the actual plan would look like, you could generate the plan.xml yourself,
First set weblogic environment,
Next execute this. This will create a plan.xml file in the current directory.
<java_home>/bin/java weblogic.PlanGenerator application.war -debug