make/Docs.gmk

*** 93,13 ***
  # Which doclint checks to ignore
  JAVADOC_DISABLED_DOCLINT_WARNINGS := missing
  JAVADOC_DISABLED_DOCLINT_PACKAGES := org.w3c.* javax.smartcardio
  
  # The initial set of options for javadoc
! JAVADOC_OPTIONS := -use -keywords -notimestamp \
      -serialwarn -encoding ISO-8859-1 -docencoding UTF-8 -breakiterator \
      -splitIndex --system none -javafx --expand-requires transitive \
      --override-methods=summary
  
  # The reference options must stay stable to allow for comparisons across the
  # development cycle.
  REFERENCE_OPTIONS := -XDignore.symbol.file=true -use -keywords -notimestamp \
--- 93,15 ---
  # Which doclint checks to ignore
  JAVADOC_DISABLED_DOCLINT_WARNINGS := missing
  JAVADOC_DISABLED_DOCLINT_PACKAGES := org.w3c.* javax.smartcardio
  
  # The initial set of options for javadoc
! JAVADOC_OPTIONS := -XDignore.symbol.file=true -use -keywords -notimestamp \
      -serialwarn -encoding ISO-8859-1 -docencoding UTF-8 -breakiterator \
      -splitIndex --system none -javafx --expand-requires transitive \
+     -XDenableValueTypes \
+     --enable-preview -source $(JDK_SOURCE_TARGET_VERSION) \
      --override-methods=summary
  
  # The reference options must stay stable to allow for comparisons across the
  # development cycle.
  REFERENCE_OPTIONS := -XDignore.symbol.file=true -use -keywords -notimestamp \