RewriteEngine On
RewriteRule ^apidocs(/?)$ /docs/1.8.10/javadocs [R=301,L]
RewriteRule ^commandlineutilities(/?)(.*)$ /commandline [R=301,L]
RewriteRule ^downloads\.html$ /download.cgi
RewriteRule ^downloads\.cgi$ /download.cgi

ErrorDocument 403 /errors/403.html
ErrorDocument 404 /errors/404.html

Options -Indexes