SEVERE: A web application registered the JBDC driver [oracle.jdbc.driver.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
10 24, 11 10:59:02 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: A web application appears to have started a thread named [HouseKeeper] but has failed to stop it. This is very likely to create a memory leak.
10 24, 11 10:59:02 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: A web application appears to have started a thread named [Prototyper] but has failed to stop it. This is very likely to create a memory leak.
10 24, 11 10:59:02 AM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
SEVERE: A web application created a ThreadLocal with key of type [org.springframework.core.NamedThreadLocal] (value [Prototype beans currently in creation]) and a value of type [null] (value [null]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.
Exception in thread "HouseKeeper" java.lang.NullPointerException
	at org.logicalcobwebs.proxool.HouseKeeperController.getHouseKeeperToRun(HouseKeeperController.java:53)
	at org.logicalcobwebs.proxool.HouseKeeperThread.run(HouseKeeperThread.java:33)