TIOBE - Java Coding Standard

Rule: StringandStringBuffer1

Synopsis:	Don't use duplicate String literals; use constants instead
Language:	Java
Severity Level:	3
Category:	StringandStringBuffer

Description:

Code containing duplicate String literals can usually be improved by declaring the String as a constant field.

public class Foo {
 private void bar() {
    buz("Howdy");
    buz("Howdy");
    buz("Howdy");
    buz("Howdy");
 }
 private void buz(String x) {}
}