- set
sets the given value as the sole header value for the given key. If the mapping
does not already exi
- add
adds the given value to the list of headers for the given key. If the mapping
does not already exist
- getFirst
returns the first value from the List of String values for the given key (if at
least one exists).
- get
- keySet
- put
- containsKey
- entrySet
- clear
- isEmpty
- putAll
- <init>