liferay/liferay-maven-support — comment on commit 189e0a405fdb336780fad429a2b4f771bdbe6c48
File:  line 0
By l15k4:

Hey Mika, are you going to add some default-values for parameters like apiBaseDir, implBaseDir or webappBaseDir ? Otherwise unless the plugin explicitly declares them, it fails on NPEs ...the first NPE is because of null apiDir.