j2se/src/share/classes/com/sun/tools/doclets/formats/html/resources/standard.properties
line 227:

   -nonavbar Do not generate navigation bar\n\
                                                                      ^^ extra

There are extra characters at the end of "-nonavbar" line so the javadoc
usage is not shown properly, the options which continued -nonavbar are
never be shown.

line 235-237:

  -sourcetab <tab length> Specify the number of spaces each tab takes up in the source\n -keywords Include HTML meta tags with package, class and member info\n
  -stylesheetfile <path> File to change style of the generated documentation\n
There is no extra back slash at the end of "-keywords" line so that
the resource 'doclet.usage' is not properly recognized.