8179364: update "<a name=" in java.base module to use id attribute
Reviewed-by: darcy

8177789: fix collections framework links to point to java.util package doc
Reviewed-by: bchristi, martin

8166365: Small immutable collections should provide optimized implementations when possible
Reviewed-by: smarks, psandoz, attila

8156079: consider making empty instances singletons
8169222: minor immutable collections optimizations
Reviewed-by: forax, redestad, alanb

8159404: throw UnsupportedOperationException unconditionally for mutator methods
Reviewed-by: martin, psandoz

8158365: List.spliterator should optimize for RandomAccess lists
Reviewed-by: psandoz
Contributed-by: Hiroshi Ito <hiroshi.ito@gs.com>

8133977: add specification for serialized forms
Reviewed-by: chegar, plevart, scolebourne

8139233: add initial compact immutable collection implementations
Reviewed-by: plevart, forax, dfuchs, chegar, alanb, scolebourne

8139232: JEP-269 initial API and skeleton implementations
Reviewed-by: psandoz, rriggs

8133188: docs: replace <tt> tags (obsolete in html5) for java.util
Reviewed-by: martin

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com