Tail Recursion Assignment

Motivation

Sometimes we choose tail recursion for the performance improvement which can be achieved by a language implementation optimization. Sometimes the tail recursive version is the cleaner implementation. Reverse is an example where the right way to build it is tail recursive.

Code To Implement

Reverse

class:	Reverse.java
methods:	reverse
package:	tail.assignment
source folder:	src/main/java

public static <E> ImmutableList<E> reverse(ImmutableList<E> original)

You will want to build a private static helper method which is tail recursive for reverse to invoke.

Test

class:	ReverseTestSuite.java
package:	tail.assignment
source folder:	src/test/java