Goal: to enable a developer to setup JGroups to use only daemon threads. Default will still be that IO bound threads are non-daemons

Jon Richards wrote:
> It works OK for the thread pools used by TP but a couple of problems:
>
> Problem 1: I need to kludge it a bit: it turns out that I need to do a
> channel.connect() before I can modify/set the TP thread pools because
> the thread pools are created in TP.start(). This means that non-daemon
> threads can get created before I have a chance to modify the setting.

What if I check in TP.start() if thread_pool/oob_thread_pool is already set and don't create a thread pool of already set ? Then you could create a JChannel, set the thread pool(s) and then call JChannel.connect().

> Problem 2: there are other threads at the transport level that get
> created using ProtocolStack.getThreadFactory() and there is not way to
> override how this thread factory gets created.

I could provide setters for the 2 thread factories in ProtocolStack and make them non-final. Would that help ?