The thing we need to check for is application.xml should not contain <module><java> entries for for the following jars - should proably just check the initial name and ignore the version part.
<!-- Seam and EL -->
<module>
<java>jboss-seam.jar</java>
</module>
<module>
<java>el-ri.jar</java>
</module>
<!-- jBPM -->
<module>
<java>jbpm-3.1.4.jar</java>
</module>
<!-- Drools and dependencies -->
<module>
<java>drools-core-3.0.5.jar</java>
</module>
<module>
<java>drools-compiler-3.0.5.jar</java>
</module>
<module>
<java>janino-2.4.3.jar</java>
</module>
<module>
<java>antlr-2.7.6.jar</java>
</module>
<module>
<java>antlr-3.0ea8.jar</java>
</module>
<module>
<java>commons-jci-core-1.0-406301.jar</java>
</module>
<module>
<java>commons-jci-janino-2.4.3.jar</java>
</module>
<module>
<java>stringtemplate-2.3b6.jar</java>
</module>