There is a whole bunch of these in the output, unclear if it is part of the normal output or an error message:

interface I { }
interface J { }
interface K extends I, J { static void m() {} }
abstract class C { public abstract void m(); }
abstract class D extends C implements I { }
abstract class E extends D implements J, K { public abstract void m(); }
got compilation error: PublicMethodsTest$CompileException: /src/Test.java:1: error: cannot access unnamed package
public class Test {}
^
  /export/local/aurora/CommonData/jtreg_dir/lib/jtreg.jar: Too many open files


It ends with an assert:

java.lang.RuntimeException: There were 123 differences.
at PublicMethodsTest.main(PublicMethodsTest.java:78)
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:543)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:110)
at java.base/java.lang.Thread.run(Thread.java:844)