ClassCastException in 2.1.0 (getBinaryBulkReply)

[ex-nerd]

Sorry, my logs truncated this.

java.lang.ClassCastException: java.lang.Long cannot be cast to [B
at redis.clients.jedis.Connection.getBinaryBulkReply(Connection.java:182)
at redis.clients.jedis.Connection.getBulkReply(Connection.java:171)
at redis.clients.jedis.Jedis.get(Jedis.java:67)

I'm using a connection pool, and noticed that there was an earlier exception:

redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: Read timed out
at redis.clients.jedis.Protocol.process(Protocol.java:79)
at redis.clients.jedis.Protocol.read(Protocol.java:131)
at redis.clients.jedis.Connection.getBinaryBulkReply(Connection.java:182)
at redis.clients.jedis.Connection.getBulkReply(Connection.java:171)
at redis.clients.jedis.Jedis.get(Jedis.java:67)

It looks like my code was not calling returnBrokenResource() on the broken resource, and returning it to the pool as normal. However, Jedis should probably still do something to catch that class cast exception.

[joeyzhu0422]

I have the same problem. when too many threads, the problem appeared.
Caused by: java.lang.ClassCastException: [B
at redis.clients.jedis.Connection.getIntegerReply(Connection.java:191) ~[jedis-2.2.0-SNAPSHOT.jar:na]
at redis.clients.jedis.Jedis.exists(Jedis.java:83) ~[jedis-2.2.0-SNAPSHOT.jar:na]
at redis.clients.jedis.ShardedJedis.exists(ShardedJedis.java:46) ~[jedis-2.2.0-SNAPSHOT.jar:na]

[joeyzhu0422]

I use the newest jedis, the problem still appear

[idyedov]

usually this only happens when you share a connection across threads or don't close it properly.

[marcosnils]

@idyedov @joeyzhu0422 you should never use a Jedis instance in a multi-threaded environment. That's why JedisPool exists. Have you checked out the part of the wiki that mentions it? (https://github.com/xetorthio/jedis/wiki/Getting-started#using-jedis-in-a-multithreaded-environment)

Are you still getting this error in a non-multithread env?. If not we'd appreciate if you could close the issue.