PL/SQL pre-compile and Code Quality checks in an automated build environment?

We build software using Hudson and Maven. We have C#, java and last, but not least PL/SQL sources (sprocs, packages, DDL, crud)

For C# and Java we do unit tests and code analysis, but we don't really know the health of our PL/SQL sources before we actually publish them to the target database.

Requirements

There are a couple of things we wan't to test in the following priority:

1. Are the sources valid, hence "compilable"?
2. For packages, with respect to a certain database, would they compile?
3. Code Quality: Do we have code flaws like duplicates, too complex methods or other violations to a defined set of rules?

Also,

• the tool must run head-less (commandline, ant, ...)
• we want to do analysis on a partial code base (changed sources only)

Tools

We did a little research and found the following tools that could potencially help:

• Cast Application Intelligence Platform (AIP): Seems to be a server that grasps information about "anything". Couldn't find a console version that would export in readable format.
• Toad for Oracle: The Professional version is said to include something called Xpert validates a set of rules against a code base.
• Sonar + PL/SQL-Plugin: Uses Toad for Oracle to display code-health the sonar-way. This is for browsing the current state of the code base.
• Semantic Designs DMSTool