IMO, we should rename org.apache.hc.core5.http.MessageHeaders.getAllHeaders() to getHeaders(). The "All" is not needed IMO. We do not have "All" in other API names, for example we have "headerIterator()" in the same class and not "allHeadersIterator()", why is "All" in one and not in the other? Do they return different results? Confusing.
Gary
