Port for kdc service gets selected in the constructor, but we bind to it later in MiniKdc.start()-->MiniKdc.initKDCServer() --> KdcServer.start(). In meantime, some other service can capture the port which results in BindException. The solution here is to catch the exception and retry.
Testing methodology:
- Used python and intellij.
- breakpoint on kdc.start(1), in catch block(2) and just after catch block(3).
- used python to bind to the selected port on breakpoint 1 --> run the program --> stops at breakpoint 2 (catch block)
- On breakpoint 1 and after 2 failures, close the port --> run the program --> skips catch block and goes to breakpoint 3.
Change-Id: I4e06e69819d1ec9a0a7fa471bf017f3a72c75cb3
593fb75083