jtreg serviceability/HeapDump/UnmountedVThreadNativeMethodAtTop.java will report failure as below.

STDERR:
STARTED UnmountedVThreadNativeMethodAtTop::VThreadBlockedAtSynchronizedNative 'VThreadBlockedAtSynchronizedNative()'
java.lang.UnsatisfiedLinkError: no UnmountedVThreadNativeMethodAtTop in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
        at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2285)
        at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:822)
        at java.base/java.lang.System.loadLibrary(System.java:1685)
        at UnmountedVThreadNativeMethodAtTop.<clinit>(UnmountedVThreadNativeMethodAtTop.java:164)
        at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method)
        at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1169)
        at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:546)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:496)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:483)
        at java.base/java.util.Optional.orElseGet(Optional.java:364)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1604)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1604)
FAILED UnmountedVThreadNativeMethodAtTop::VThreadBlockedAtSynchronizedNative 'VThreadBlockedAtSynchronizedNative()' [4ms]
STARTED UnmountedVThreadNativeMethodAtTop::VThreadBlockedAtOjectWait 'VThreadBlockedAtOjectWait()'
java.lang.NoClassDefFoundError: Could not initialize class UnmountedVThreadNativeMethodAtTop
        at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method)
        at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1169)
        at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:546)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:496)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:483)
        at java.base/java.util.Optional.orElseGet(Optional.java:364)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1604)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1604)
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.UnsatisfiedLinkError: no UnmountedVThreadNativeMethodAtTop in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib [in thread "MainThread"]
        at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2285)
        at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:822)
        at java.base/java.lang.System.loadLibrary(System.java:1685)
        at UnmountedVThreadNativeMethodAtTop.<clinit>(UnmountedVThreadNativeMethodAtTop.java:164)
        ... 8 more
FAILED UnmountedVThreadNativeMethodAtTop::VThreadBlockedAtOjectWait 'VThreadBlockedAtOjectWait()' [1ms]
JavaTest Message: JUnit Platform Failure(s): 2

[ JUnit Containers: found 4, started 4, succeeded 4, failed 0, aborted 0, skipped 0]
[ JUnit Tests: found 2, started 2, succeeded 0, failed 2, aborted 0, skipped 0]

java.lang.Exception: JUnit test failure
        at com.sun.javatest.regtest.agent.JUnitRunner.runWithJUnitPlatform(JUnitRunner.java:179)
        at com.sun.javatest.regtest.agent.JUnitRunner.main(JUnitRunner.java:110)
        at com.sun.javatest.regtest.agent.JUnitRunner.main(JUnitRunner.java:76)