ModelsNullEquivalentOrEquals(<a href="http://d.android.com/reference/android/support/annotation/Nullable.html?is-external=true" title="class or interface in android.support.annotation">@Nullable</a>
                                                       <a href="http://d.android.com/reference/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;a,
                                                       <a href="http://d.android.com/reference/android/support/annotati