jdk/jshell/StartOptionTest.java fails intermittently, observed the failure after JDK-8150382 (and JDK-8155580) at solaris-x64

[TestNG] Running:
  jdk/jshell/StartOptionTest.java

config StartOptionTest.setUp(): success
test StartOptionTest.testClasspath(): success
config StartOptionTest.tearDown(): success
config StartOptionTest.setUp(): success
test StartOptionTest.testNegFeedbackOption(): success
config StartOptionTest.tearDown(): success
config StartOptionTest.setUp(): success
test StartOptionTest.testUnknown(): success
config StartOptionTest.tearDown(): success
config StartOptionTest.setUp(): success
test StartOptionTest.testUsage(): success
config StartOptionTest.tearDown(): success
config StartOptionTest.setUp(): success
test StartOptionTest.testVersion(): success
config StartOptionTest.tearDown(): success

===============================================
jdk/jshell/StartOptionTest.java
Total tests run: 5, Failures: 0, Skips: 0
===============================================

----------System.err:(3/36)----------

JavaTest Message: Test complete.

result: Failed. Execution failed: `main' threw exception: java.lang.AssertionError: Unexpected output to: usererr