Expecting status code for size/count

[aramis102]

I am experiencing this exception while using the keys() method

-- JREDIS -- BUG: serviceRequest() -- ProviderException: Bug? Expecting status code for size/count
-- JREDIS -- INFO: serviceRequest() -- closing connection ...
org.jredis.ProviderException: Bug? Expecting status code for size/count
at org.jredis.ri.alphazero.protocol.SynchProtocol$SynchMultiLineResponseBase.readControlLine(SynchProtocol.java:410)
at org.jredis.ri.alphazero.protocol.SynchProtocol$SynchBulkResponse.read(SynchProtocol.java:488)
at org.jredis.ri.alphazero.connection.SynchConnection.serviceRequest(SynchConnection.java:138)
at org.jredis.ri.alphazero.JRedisClient.serviceRequest(JRedisClient.java:155)
at org.jredis.ri.alphazero.JRedisSupport.keys(JRedisSupport.java:1022)
at com.chikka.tron.JredisClient.main(JredisClient.java:83)

JRedis redis = new JRedisClient("localhost", 6379);
...
line 83 : redis.keys();

[motti]

You are almost certainly using the wrong jredis version for the redis server you are running. With version v2+ the KEYS command changed its reply type (from bulk to multi-bulk) but most other commands didn't so for the most part an incompatible version of jredis will work but for keys() it won't.