Jedis newspaper classcastexception: [B cannot be cast to XXX

In the code for a value of a long type key to perform the Incrby operation, has been normal, burst a case of exception:

caused by:java.lang.ClassCastException: [B cannot is cast to Java.lang.Long at Redis.clients.jedis.Connection.get Integerreply (connection.java:210) at Redis.clients.jedis.Jedis.incrBy (jedis.java:556) at Com.xxx.xxxxxClie Nt.incrby (singlejedisclientimpl.java:119) ... Common frames omitted

Where Com.xxx.xxxxxClient.incrBy is a encapsulation and management of the Jedis client. It's supposed to be xxxxxclient there's a problem here. Or, the Jedis itself has a problem with the thread pool management.

----------------The following is online information, transferred from Http://mengkang.net/443.html---------------------------------------

caused by: java.lang.classcastexception: [b cannot be cast to  java.util.list        at  Redis.clients.jedis.Connection.getBinaryMultiBulkReply (connection.java:218)         at redis.clients.jedis.connection.getmultibulkreply (connection.java:211)          at redis.clients.jedis.jedis.lrange (jedis.java:862)          at me.topit.site.util.redis.cacheclientbase.lrange (CacheClientBase.java:516)       at me.topit.site.cache.tagcache.get (TagCache.java:37)        at me.topit.site.model.tags.getuserselectedtags (Tags.java:141)        at me.topit.site.service.feedservice.gettype (feedservice.java:41) or caused by:  java.lang.classcastexception: java.util.arraylist cannot be cast to [b      at  Redis.clients.jedis.Connection.getBinaryBulkReply (connection.java:201)       at  redis.clients.jedis.connection.getbulkreply (connection.java:190)         at redis.clients.jedis.jedis.hget (jedis.java:601)        at  Me.topit.site.util.redis.CacheClientBase.hget (cacheclientbase.java:51)       at  me.topit.site.cache.accountcache.getauth (accountcache.java:30)       at  me.topit.site.model.account.getauth (account.java:137)         at  me.topit.site.service.accountservice.logincheck (accountservice.java:112)        at me.topit.site.service.baseservice.islogin (baseservice.java:87)         at me.topit.site.service.pushservice.bind (Pushservice. java:53) 

I discovered it because I made the thread pool of the Redis connection, which was always a static variable declared in the parent class, and the local tune was used directly. It was not released after use. So every time the project runs, it's a few hours to get to the super slow. The final discovery is due to the use of a connection. It is now initialized for each use, and then released each time it is exhausted.

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This may be the reason mentioned by the author. Not confirmed.

Jedis newspaper classcastexception: [B cannot be cast to XXX