1、错误描述

java.lang.IllegalStateException
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1743)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1701)
	at net.sf.ehcache.store.disk.DiskStore.keySet(DiskStore.java:521)
	at net.sf.ehcache.store.disk.DiskStorageFactory$DiskExpiryTask.run(DiskStorageFactory.java:828)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
八月 10, 2016 8:58:21 上午 org.apache.catalina.loader.WebappClassLoaderBase loadClass
信息: Illegal access: this web application instance has been stopped already.  Could not load redis.clients.jedis.exceptions.JedisDataException.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateException
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1743)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1701)
	at redis.clients.jedis.JedisPool$JedisFactory.makeObject(JedisPool.java:70)
	at org.apache.commons.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1617)
	at org.apache.commons.pool.impl.GenericObjectPool.ensureMinIdle(GenericObjectPool.java:1575)
	at org.apache.commons.pool.impl.GenericObjectPool.access$700(GenericObjectPool.java:190)
	at org.apache.commons.pool.impl.GenericObjectPool$Evictor.run(GenericObjectPool.java:1709)
	at java.util.TimerThread.mainLoop(Timer.java:555)
	at java.util.TimerThread.run(Timer.java:505)
Exception in thread "Timer-0" 
java.lang.NoClassDefFoundError: redis/clients/jedis/exceptions/JedisDataException
	at redis.clients.jedis.JedisPool$JedisFactory.makeObject(JedisPool.java:70)
	at org.apache.commons.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1617)
	at org.apache.commons.pool.impl.GenericObjectPool.ensureMinIdle(GenericObjectPool.java:1575)
	at org.apache.commons.pool.impl.GenericObjectPool.access$700(GenericObjectPool.java:190)
	at org.apache.commons.pool.impl.GenericObjectPool$Evictor.run(GenericObjectPool.java:1709)
	at java.util.TimerThread.mainLoop(Timer.java:555)
	at java.util.TimerThread.run(Timer.java:505)
Caused by: java.lang.ClassNotFoundException: redis.clients.jedis.exceptions.JedisDataException
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1858)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1701)
	... 7 more

2、错误原因


3、解决办法