in src/main/java/com/twitter/joauth/UnpackedRequest.java [154:166]
public Map<String, String> oAuthParamMap() {
HashMap<String, String> map = new HashMap<String, String>();
map.put(OAuthParams.OAUTH_CONSUMER_KEY, consumerKey);
map.put(OAuthParams.OAUTH_NONCE, nonce);
map.put(OAuthParams.OAUTH_TIMESTAMP, timestampSecs.toString());
map.put(OAuthParams.OAUTH_SIGNATURE_METHOD, signatureMethod);
map.put(OAuthParams.OAUTH_SIGNATURE, signature);
map.put(OAuthParams.OAUTH_VERSION, (version == null) ? OAuthParams.ONE_DOT_OH : version);
map.put(OAuthParams.NORMALIZED_REQUEST, normalizedRequest);
return map;
}