unbound annotations should not be seen. This is a message to System.out,
primarily.

Java11 support; other fixes

- default is to use JavaScript Map for String keys.

- reverts to Java hash table use for the
 XX(initialCapacity, limitingFactor)
constructor specifically.

- j2sClazz returns standard JavaScript string for all Java new String(x)
except when x is "..." or new String() itself.

- streamlines static calls that need to initialize a class after
executing parameters.

- better handling of === and new String()