java/net/SocketPermission/SocketPermissionTest.java fails intermittently with java.net.ConnectException: Operation timed out

This has been observed once on Mac OS X 10.10.5. No such failure observed in other test executions, so it is also probably a temporarily environment problem?

Please refer the test output below:
----------System.out:(69/4385)----------
[TestNG] Running:
  java/net/SocketPermission/SocketPermissionTest.java

config SocketPermissionTest.setupSecurityManager(): success
test SocketPermissionTest.acceptServerSocketTest(): success
config SocketPermissionTest.setupSecurityManager(): success
test SocketPermissionTest.connectDatagramSocketTest(): success
config SocketPermissionTest.setupSecurityManager(): success
test SocketPermissionTest.connectSocketTest(): failure
java.security.PrivilegedActionException: java.net.ConnectException: Operation timed out (Connection timed out)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at SocketPermissionTest.connectSocketTest(SocketPermissionTest.java:88)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:538)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:821)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1131)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
at org.testng.TestRunner.privateRun(TestRunner.java:773)
at org.testng.TestRunner.run(TestRunner.java:623)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:357)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:352)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:310)
at org.testng.SuiteRunner.run(SuiteRunner.java:259)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1185)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1110)
at org.testng.TestNG.run(TestNG.java:1018)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:87)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:54)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:538)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:110)
at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: java.net.ConnectException: Operation timed out (Connection timed out)
at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:400)
at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:243)
at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:225)
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:402)
at java.base/java.net.Socket.connect(Socket.java:591)
at java.base/java.net.Socket.connect(Socket.java:540)
at java.base/java.net.Socket.<init>(Socket.java:436)
at java.base/java.net.Socket.<init>(Socket.java:246)
at SocketPermissionTest.lambda$connectSocketTest$0(SocketPermissionTest.java:89)
... 31 more
config SocketPermissionTest.setupSecurityManager(): success
test SocketPermissionTest.joinGroupMulticastTest(): success
config SocketPermissionTest.setupSecurityManager(): success
test SocketPermissionTest.listenDatagramSocketTest(): success
config SocketPermissionTest.setupSecurityManager(): success
test SocketPermissionTest.listenMulticastSocketTest(): success
config SocketPermissionTest.setupSecurityManager(): success
test SocketPermissionTest.listenServerSocketTest(): success
config SocketPermissionTest.setupSecurityManager(): success
test SocketPermissionTest.sendDatagramPacketTest(): success

===============================================
java/net/SocketPermission/SocketPermissionTest.java
Total tests run: 8, Failures: 1, Skips: 0
===============================================