Как исправить? при запуске ЛС

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Java HotSpot 64-Bit Server VM warning: Using incremental CMS is deprecated a nd will likely be removed in a future release log4j:WARN No appenders could be found for logger (l2p.loginserver.Config). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more in fo. Can't get connection from databaseException in thread "main" java.lang.NullPoint erException at l2p.loginserver.LoginServer.main(LoginServer.java:97)