make/Docs.gmk

*** 102,13 ***
  # Allow overriding on the command line
  # (intentionally sharing name with the javac option)
  JAVA_WARNINGS_ARE_ERRORS ?= -Werror
  
  # The initial set of options for javadoc
! JAVADOC_OPTIONS := -use -keywords -notimestamp \
      -encoding ISO-8859-1 -docencoding UTF-8 -breakiterator \
      -splitIndex --system none -javafx --expand-requires transitive \
      --override-methods=summary \
      --no-external-specs-page
  
  # The reference options must stay stable to allow for comparisons across the
  # development cycle.
--- 102,15 ---
  # Allow overriding on the command line
  # (intentionally sharing name with the javac option)
  JAVA_WARNINGS_ARE_ERRORS ?= -Werror
  
  # The initial set of options for javadoc
! JAVADOC_OPTIONS := -XDignore.symbol.file=true -use -keywords -notimestamp \
      -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 \
      --no-external-specs-page
  
  # The reference options must stay stable to allow for comparisons across the
  # development cycle.