Error importing project that uses java and maven plugins

According to Xavier Ducrohet of the Android Studio team, there might be a bug in the Maven plugin for Gradle.

The ADT-DEV thread is here:

I found the problem. In my build.gradle file, I was inadvertently passing “null” as the pom.version, since on this line:

System.getenv(“MAVEN_UPLOAD_VERSION”) was returning null.

The workaround is to pass an empty string if System.getenv(“MAVEN_UPLOAD_VERSION”) is null, ie:

Gradle should be enhanced to do some validation and throw a more meaningful error like “pom.version cannot be null”, which would make this kind of error a lot easier to fix.