Is there any reason for “Boolean.TRUE.equals(x)” in Java?

I hope foo.isBar() returns a boolean. In that case you can always write if (foo.isBar()). If you foo.isBar() returns Boolean then it can be either Boolean.TRUE, Boolean.FALSE or NULL. In that case if (Boolean.TRUE.equals(foo.isBar())) makes sure the if block is executed in one scenario(TRUE) and omitted in remaining 2.

Over and above if (foo.isBar()) will fail, when foo.isBar() returns Boolean NULL.