Invoking a method designed to return a string representation of an object which is already a string is a waste of keystrokes. This redundant
construction may be optimized by the compiler, but will be confusing in the meantime.
Noncompliant code example
String message = "hello world";
System.out.println(message.toString()); // Noncompliant;
Compliant solution
String message = "hello world";
System.out.println(message);
