public void initialize()

in src/main/java/org/apache/sling/jcr/jackrabbit/base/security/DelegatingLoginModule.java [54:93]
36 lines of code
5 McCabe index (conditional complexity)

    public void initialize(Subject subject, CallbackHandler callbackHandler, Map<String, ?> sharedState,
                           Map<String, ?> options) {
        Configuration config = null;
        try{
            config = Configuration.getInstance(JAAS_CONFIG_ALGO_NAME, null, providerName);
        }catch (NoSuchProviderException e){
            logger.debug("No provider "+providerName+"found so far",e);
        } catch (NoSuchAlgorithmException e) {
            logger.debug("No provider "+providerName+"found so far for fetching JAAS " +
                    "config with algorithm name "+JAAS_CONFIG_ALGO_NAME,e);
        }

        if(config != null){
            final Thread current = Thread.currentThread();
            final ClassLoader orig = current.getContextClassLoader();
            try {
                current.setContextClassLoader(DelegatingLoginModule.class.getClassLoader());
                loginContext = new LoginContext(appName, subject,callbackHandler, config);
            } catch (LoginException e) {
                loginException = e;
            } finally{
                current.setContextClassLoader(orig);
            }
        }else{
            //No support so far from OSGi so would use default logic used by Jackrabbit
            //to construct the LoginModule
            Properties p = new Properties();
            p.putAll(options);
            BeanConfig bc = new BeanConfig(delegateLoginModuleClass,p);
            LoginModuleConfig lmc = new LoginModuleConfig(bc);
            try {
                delegate = lmc.getLoginModule();
                delegate.initialize(subject,callbackHandler,sharedState,options);
                logger.info("No JAAS Configuration provider found would be directly invoking LoginModule {}",delegateLoginModuleClass);
            } catch (ConfigurationException e) {
                //Behaviour is same as org.apache.jackrabbit.core.security.authentication.LocalAuthContext.login()
                loginException = new LoginException(e.getMessage());
            }
        }
    }