The test fails with
java.lang.UnsatisfiedLinkError: Native Library .../test/jdk/jtreg/native/libCreationTimeHelper.so already loaded in another classloader
at java.base/jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:201)
at java.base/jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:174)
at java.base/jdk.internal.loader.NativeLibraries.findFromPaths(NativeLibraries.java:315)
at java.base/jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:287)
at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2427)
at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:818)
at java.base/java.lang.System.loadLibrary(System.java:2006)
at CreationTimeHelper.<clinit>(CreationTimeHelper.java:26)
at CreationTime.test(CreationTime.java:106)
at CreationTime.main(CreationTime.java:149)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:333)
at java.base/java.lang.Thread.run(Thread.java:840)

JDK-8334339 added a second test run causing the lib to be loaded twice in case jtreg runs tests highly parallel.

The fix applies only to 21 and older as the test uses JNI here, while using FFM API in 22 and yougner.

Fix: run one of the two tests as /othervm.