Android SDK: Duplicate class FinalizableReferenceQueue$DirectLoader in modules checkstyle-5.3-all.jar and guava-18.0.jar

Issue

When compiling the App with Android SDK the error below is reported

Duplicate class com.google.common.base.FinalizableReferenceQueue$DirectLoader found in modules checkstyle-5.3-all.jar (checkstyle-5.3-all.jar) and guava-18.0.jar (com.google.guava:guava:18.0)

Root Cause

Android SDK has Google guava 18.0 library as a dependency, while Checkstyle 5.3 has dependency on com.google.collections » google-collections 1.0 which is an old library and is causing the duplicate error.

Solution

Upgrade the Checkstyle version to 7.0. It will compile successfully, since that version uses Google guava library instead.