Redis protocol fails for lower case commands

RHDG's Redis protocol implementation implements its own case insensitive string comparison instead of using standard libraries to do so.  And does it wrong.

server/resp/src/main/java/org/infinispan/server/resp/RespCommand.java

               if (upperByte == targetByte || upperByte + 22 == targetByte) {

Lower case ASCII letters are 32 higher than upper case, not 22.

So if a Redis client sends upper case commands it will work, but if it sends lower case commands it will fail to match the command, ending up with a TRACE log like:
[org.infinispan.server.resp.RespDecoder] Received command: null with arguments []