Github user zhangminglei commented on the issue:
https://github.com/apache/flink/pull/5449
I copied the Travis log here, and I think this is what we want. And the
line of 63 verifies it is not a loopback address.
```
// make sure that the InetAddress.getLocalHost is not a loopback address
Assume.assumeFalse(InetAddress.getLocalHost().isLoopbackAddress());
```
```
Tests in error:
ConnectionUtilsTest.testReturnLocalHostAddressUsingHeuristics:63 û
AssumptionViolated
Tests run: 2553, Failures: 0, Errors: 1, Skipped: 8
17:38:48.959 [INFO]
------------------------------------------------------------------------
17:38:48.959 [INFO] Reactor Summary:
17:38:48.959 [INFO]
17:38:48.959 [INFO] flink-core .........................................
SUCCESS [ 55.118 s]
17:38:48.959 [INFO] flink-java .........................................
SUCCESS [ 26.140 s]
17:38:48.959 [INFO] flink-runtime ......................................
FAILURE [11:01 min]
17:38:48.959 [INFO] flink-optimizer ....................................
SKIPPED
17:38:48.959 [INFO] flink-clients ......................................
SKIPPED
17:38:48.959 [INFO] flink-streaming-java ...............................
SKIPPED
17:38:48.962 [INFO] flink-scala ........................................
SKIPPED
17:38:48.962 [INFO] flink-test-utils ...................................
SKIPPED```
---