potential ws/ui memory leaks with threadlocals

Note, I believe these are only if you reload the application in tomcat which is not recommended. If you shut down the application these should not be a problem. Not sure though.

1.

SEVERE: A web application created a ThreadLocal with key of type [java.lang.InheritableThreadLocal] (value [java.lang.InheritableThreadLocal@49f5a659]) and a value of type [edu.internet2.middleware.grouper.j2ee.GrouperRequestWrapper] (value [edu.internet2.middleware.grouper.j2ee.GrouperRequestWrapper@70124154]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.

2.

May 27, 2016 5:01:13 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
SEVERE: A web application created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@567e768e]) and a value of type [edu.internet2.middleware.morphString.Crypto] (value [edu.internet2.middleware.morphString.Crypto@89990ff]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.

3.

May 27, 2016 5:01:13 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: A web application appears to have started a thread named [pool-2-thread-2] but has failed to stop it. This is very likely to create a memory leak.

4.

May 27, 2016 5:01:13 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: A web application appears to have started a thread named [org.hibernate.cache.spi.UpdateTimestampsCache.data] but has failed to stop it. This is very likely to create a memory leak.

5.

May 27, 2016 5:01:13 PM org.apache.catalina.loader.WebappClassLoader clearReferencesStopTimerThread
SEVERE: A web application appears to have started a TimerThread named [net.sf.ehcache.CacheManager@4c76ec2d] via the java.util.Timer API but has failed to stop it. To prevent a memory leak, the timer (and hence the associated thread) has been forcibly cancelled.

6.

May 27, 2016 5:01:13 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: A web application registered the JBDC driver [org.hsqldb.jdbc.JDBCDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.

7.

May 27, 2016 5:01:13 PM org.apache.catalina.loader.WebappClassLoader clearReferencesStopTimerThread
SEVERE: A web application appears to have started a TimerThread named [C3P0PooledConnectionPoolManager[identityToken->1lim7by9g1vgt9
8x1kusjgc|1b778d0c]-AdminTaskTimer] via the java.util.Timer API but has failed to stop it. To prevent a memory leak, the timer (and
hence the associated thread) has been forcibly cancelled.

ComboPooledDataSource.reset() ?