Please run the attached test code. The output will be (JDK9 b115 + Win 7):

=== testing E ===

declaringClass
isBound = false
isExpert = false
isHidden = false
isPreferred = false
required = false
visualUpdate = false
null vals

ENUM
isBound = false
isExpert = true
isHidden = false
isPreferred = true
required = false
visualUpdate = true
RIGHT 4 javax.swing.SwingConstants.RIGHT

=== testing TWO ===

declaringClass
isBound = false
isExpert = false
isHidden = false
isPreferred = false
required = false
visualUpdate = false
null vals

TWO
isBound = false
isExpert = true
isHidden = false
isPreferred = true
required = false
visualUpdate = true
LEFT 2 javax.swing.SwingConstants.LEFT

=== testing Empty ===

declaringClass
isBound = false
isExpert = false
isHidden = false
isPreferred = false
required = false
visualUpdate = false
null vals


=== testing Other ===

Other
isBound = false
isExpert = false
isHidden = false
isPreferred = false
required = true
visualUpdate = true
CONSTANT 100 some.test.CONSTANT


Please note that for "Other" case (where we do not use the new annotation) there is no parasitic "declaringClass" descriptor