drpc | drpc is a lightweight , drop-in replacement for gRPC

This switch inside switch construction looks really hard to read, you're right.

Think of it this way: each PlayType wins from some others. And this information look like a configuration, so can be described in a declarative way, like this:

• SPOCK wins against TESOURA & PEDRA
• TESOURA wins against PAPEL & LAGARTO
• etc

So you can just define a Map> and verify if u2.play is contained by map.get(u1.play)

UPD. Code example (java, written in notepad, so may contain some syntax mistakes)

Not knowing the details of your MongoDB docker image it is not possible to provide a comprehensive answer, so far I can only think of the following next steps:

1. Ensure that your MongoDB Java Driver matches the version of your MongoDB server

2. You might need to explicitly add the user to your database in the Mongo Shell like:

Beanshell doesn't support diamond operators so make sure to choose groovy in the "Language" dropdown.

Moreover users are encouraged to use Groovy since JMeter 3.1 mainly because Groovy has much better performance comparing to Beanshell

So consider switching to Groovy and the error should go away.

Well, I found a solution suitable for my use case using Apache Storm 2.1.0.

It seems that invoking the submitTopology method of the local cluster as proposed by the documentation does not end the executor correctly with version 2.1.0 using the LinearDRPCTopologyBuilder to build the topology.

By looking closer to the source code, it was possible to understand how to apply the LinearDRPCTopologyBuilder logic to the TopologyBuilder directly.

Here is the change applied to the createBuilder method: