Xcode 10.2 Java test failure

[phlptp]

Describe the bug The Xcode 10.2 build is regularly failing due to the Java test failure, which doesn't seem to be happening in any of the other builds.

18/22 Test #30: python_value_federate_test .......   Passed    9.17 sec
      Start 31: Java_hello_world_test
19/22 Test #31: Java_hello_world_test ............   Passed    0.21 sec
      Start 32: Java_Helics_Api_tests
20/22 Test #32: Java_Helics_Api_tests ............***Failed    2.27 sec
broker3 (0)::Unable to connect to publication target Ep2
broker3 (0)::Unable to connect to endpoint target ep2
broker3 (0)::Unable to connect to filter target fed1/pub3
java.lang.AssertionError: !msg2Data.equals("Hello")
	at JavaHelicsApiTests.helicsAssert(JavaHelicsApiTests.java:13)
	at JavaHelicsApiTests.main(JavaHelicsApiTests.java:430)
java.lang.AssertionError: !msg2OriginalSource.equals("fed1/Ep1")
	at JavaHelicsApiTests.helicsAssert(JavaHelicsApiTests.java:13)
	at JavaHelicsApiTests.main(JavaHelicsApiTests.java:438)
java.lang.AssertionError: !msg2Source.equals("fed1/Ep1")
	at JavaHelicsApiTests.helicsAssert(JavaHelicsApiTests.java:13)
	at JavaHelicsApiTests.main(JavaHelicsApiTests.java:442)
java.lang.AssertionError: !msg2Destination.equals("Ep2")
	at JavaHelicsApiTests.helicsAssert(JavaHelicsApiTests.java:13)
	at JavaHelicsApiTests.main(JavaHelicsApiTests.java:446)
java.lang.AssertionError: !msg2OriginalDestination.equals("")
	at JavaHelicsApiTests.helicsAssert(JavaHelicsApiTests.java:13)
	at JavaHelicsApiTests.main(JavaHelicsApiTests.java:450)
89 of 94 tests passed.
94% successful.
5 tests failed.
fed1 (131072) (0)::Unable to connect to publication target Ep2
fed1 (131072) (0)::Unable to connect to filter target fed1/pub3
      Start 33: comboFed_broker_example
21/22 Test #33: comboFed_broker_example ..........   Passed    0.33 sec
      Start 34: nonlings_example
22/22 Test #34: nonlings_example .................   Passed    6.45 sec

Not entirely sure why this is failing only in this build.