question: public OIDCTokens acquireTokensBySecurID ( String username , String passcode , SecurIDRetriever securIdRetriever , TokenSpec tokenSpec ) throws OIDCClientException , OIDCServerException , TokenValidationException , SSLConnectionException { Validate . notEmpty ( username , "username" ) ; Validate . notEmpty ( passcode , "passcode" ) ; Validate . notNull ( securIdRetriever , "securIdRetriever" ) ; Validate . notNull ( tokenSpec , "tokenSpec" ) ; HttpResponse httpResponse = OIDCClientUtils . handleSecurIDMultiLeggedGrant ( username , passcode , securIdRetriever , tokenSpec , getTokenEndpointURI ( ) , this . clientId , this . holderOfKeyConfig , this . keyStore ) ; return OIDCClientUtils . parseTokenResponse ( httpResponse , this . providerPublicKey , this . issuer , this . clientId , this . clockToleranceInSeconds ) ; }
target:  Get tokens by SecurIDRetriever which handles multi-legged SecurIDGrant