public static ReadOnlyHttp2Headers trailers(boolean validateHeaders, AsciiString... otherHeaders) {
        return new ReadOnlyHttp2Headers(validateHeaders, EMPTY_ASCII_STRINGS, otherHeaders);
    }
@Test
    public void nullHeaderNameValidated() {
        assertThrows(Http2Exception.class, new Executable() {
            @Override
            public void execute() {
                ReadOnlyHttp2Headers.trailers(true, null, new AsciiString("foo"));
            }
        });
    }