Created attachment 31870 [details] ANT log showing the problem when trying to run the tests using ANT (ant test), the test fails during compilation. See attached ANT log file. The problem is in the class TesterOpenSSL which uses the method Process.waitFor(int,TimeUnit). This method does not exist in Java 7 (it was introduced in Java 8).
Created attachment 31871 [details] patch a fix for the problem
Thanks for the report. The chances of this getting stuck are slim so I went for the simpler fix.