----------System.err:(14/704)----------
For input 0xc3f
expected: public protected private abstract static final strictfp
got public protected private abstract static final synchronized strictfp
java.lang.RuntimeException
at toStringTest.testString(toStringTest.java:41)
at toStringTest.main(toStringTest.java:88)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:335)
at java.base/java.lang.Thread.run(Thread.java:1516)

Possibly related to: JDK-8372098 ?