`LostLogoutTest`, `LostLogoutThreadedTest`, `SocketAcceptorTest` use a fixed port

[chrjohn]

This should be changed to a dynamic port to prevent BindExceptions because that port is already in use.

See for example

quickfixj/quickfixj-core/src/test/java/quickfix/SocketAcceptorTest.java

Line 208 in 48ea859

final int port = AvailablePortFinder.getNextAvailable();

[busy-spin]

hi @chrjohn

I made a pull request for this.

#573

[chrjohn]

Thanks @isurudevj , will take a look.