Motivation:
We don't have an argument named {@code value} but have {@code set} and
{@code expected} in HttpHeaders and HttpUtil respectively.
Modifications:
I replaced {@code value} to {@code set} and {@code expected} in HttpHeaders
and HttpUtil respectively.
Result:
Now javadoc says;
If {@code set} is {@code true}, the {@code "Expect: 100-continue"} header is
set and all other previous {@code "Expect"} headers are removed. Otherwise,
all {@code "Expect"} headers are removed completely. in HttpHeaders
If {@code expected} is {@code true}, the {@code "Expect: 100-continue"} header
is set and all other previous {@code "Expect"} headers are removed. Otherwise,
all {@code "Expect"} headers are removed completely. in HttpUtil