$ ./pants test-changed
INFO] Detected git repository at /home/tansy/code/pants on branch tansy.issue2544

21:00:40 00:00 [main]
               (To run a reporting server: ./pants server)
21:00:40 00:00   [bootstrap]
21:00:40 00:00   [setup]
21:00:40 00:00     [parse]INFO] Operating on changed 0 target(s): 

               Executing tasks in goals: bootstrap -> imports -> unpack-jars -> jvm-platform-validate -> deferred-sources -> gen -> resolve -> resources -> compile -> test -> test-changed
21:00:40 00:00   [bootstrap]
FAILURE: Failed to locate a JDK distribution with minimum_version None, maximum_version None


21:00:40 00:00   [complete]
               FAILURE