This rule is defined by the following XPath expression:
//ClassOrInterfaceDeclaration[@Interface='false'] /ClassOrInterfaceBody/ClassOrInterfaceBodyDeclaration/FieldDeclaration [@Final='false'] [VariableDeclarator/VariableDeclaratorId[upper-case(@Image)=@Image]]
Example:
public class Foo { // this is bad, since someone could accidentally // do PI = 2.71828; which is actualy e // final double PI = 3.16; is ok double PI = 3.16; }