This rule is defined by the following XPath expression:
//VariableDeclarator [parent::FieldDeclaration] [../Type/ReferenceType /ClassOrInterfaceType[@Image='Logger'] and (..[@Final='false'] or ..[@Static = 'false'] ) ]
Example:
class Foo{ Logger log = Logger.getLogger(Foo.class.getName()); // It is much better to declare the logger as follows // static final Logger log = Logger.getLogger(Foo.class.getName()); }