A DESCRIPTION OF THE PROBLEM :
for https://docs.oracle.com/javase/8/docs/api/ looking at LayoutManager2 (interface) the text says
This minimal extension to LayoutManager is intended for tool providers who wish to the creation of constraint-based layouts. It does not yet provide full, general support for custom constraint-based layout managers.
This doesn't parse in the English language as I know it.


REGRESSION : Last worked in version 8

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Go to the indicated web page

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
well-formed English
ACTUAL -
as described

CUSTOMER SUBMITTED WORKAROUND :
human understanding

FREQUENCY : always