This was seen once in jdk9 dev nightly b93_2015-11-14-1602_3833.

Please see the following test output:
----------System.out:(77/4472)----------
[TestNG] Running:
  java/time/test/java/time/TestClock_System.java


systemUTC #1 : 2015-11-15T04:25:44.564Z - seconds: 1447561544, nanos: 564000000
systemUTC #2 : 2015-11-15T04:25:44.564Z - seconds: 1447561544, nanos: 564000000
highestResolutionUTC #1 : 2015-11-15T04:25:44.564023400Z - seconds: 1447561544, nanos: 564023400
highestResolutionUTC #2 : 2015-11-15T04:25:44.564023400Z - seconds: 1447561544, nanos: 564023400

systemUTC : 2015-11-15T04:25:44.565Z - seconds: 1447561544, nanos: 565000000
highestResolutionUTC : 2015-11-15T04:25:44.565Z - seconds: 1447561544, nanos: 565000000

Number of time stamps which had better than millisecond precision: 0/1000

systemUTC : 2015-11-15T04:25:44.565Z - seconds: 1447561544, nanos: 565000000
highestResolutionUTC : 2015-11-15T04:25:44.565Z - seconds: 1447561544, nanos: 565000000
test test.java.time.TestClock_System.test_ClockResolution(): failure
java.lang.RuntimeException: Micro second preccision not reached
at test.java.time.TestClock_System.test_ClockResolution(TestClock_System.java:203)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:520)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
at org.testng.TestRunner.privateRun(TestRunner.java:767)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
at org.testng.TestNG.run(TestNG.java:1057)
at com.sun.javatest.regtest.TestNGAction$TestNGRunner.main(TestNGAction.java:163)
at sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:520)
at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:218)
at java.lang.Thread.run(Thread.java:747)
*** Testing limits ***
Validating adjustment: 4294967295566953100
Validating adjustment: -4294967294431093800
Validating adjustment: 1024568906200
Validating adjustment: 1024568906200
Validating adjustment: 1024568906200
Validating adjustment: 1024568906200
Validating adjustment: 1447561544568906200
Validating adjustment: 1447561545568906200
Validating adjustment: -2147483646431093800
Validating adjustment: -2147483647431093800
Validating adjustment: 1024568906200
Validating adjustment: 1024568906200
test test.java.time.TestClock_System.test_OffsetLimits(): success
*** Testing regular cases ***
Validating adjustment: 568906200
Validating adjustment: 1024568906200
Validating adjustment: -1023430117200
test test.java.time.TestClock_System.test_OffsetRegular(): success
test test.java.time.TestClock_System.test_systemUTC("Clock.systemUTC()#1", SystemClock[Z]): success
test test.java.time.TestClock_System.test_systemUTC("Clock.systemUTC()#2", SystemClock[Z]): success
test test.java.time.TestClock_System.test_systemUTC("Clock.system(ZoneOffset.UTC)#1", SystemClock[Z]): success
test test.java.time.TestClock_System.test_systemUTC("Clock.system(ZoneOffset.UTC)#2", SystemClock[Z]): success
test test.java.time.TestClock_System.test_toString(): success
test test.java.time.TestClock_System.test_withZone_same(): success

===============================================
java/time/test/java/time/TestClock_System.java
Total tests run: 9, Failures: 1, Skips: 0
===============================================

----------System.err:(12/649)----------
Something is strange: no microsecond precision with highestResolutionUTC?
java.lang.Exception: failures: 1
at com.sun.javatest.regtest.TestNGAction$TestNGRunner.main(TestNGAction.java:166)
at sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:520)
at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:218)
at java.lang.Thread.run(Thread.java:747)