Text kind = new Text("MyTokenKind");
Text service = new Text("host:port");
Token<? extends TokenIdentifier> myToken =
new Token<TokenIdentifier>(identifier, password, kind, service);
Text tokenAlias = new Text("myToken");
credentials.addToken(tokenAlias, myToken);
Text appTokenService = new Text("localhost:0");
Token<AMRMTokenIdentifier> appToken =
new Token<AMRMTokenIdentifier>(identifier, password,
AMRMTokenIdentifier.KIND_NAME, appTokenService);