java/nio/file/FileStore/Basic.java fails with java.io.IOException: Mount point not found

java.io.IOException: Mount point not found
	at java.base/sun.nio.fs.LinuxFileStore.findMountEntry(LinuxFileStore.java:91)
	at java.base/sun.nio.fs.UnixFileStore.<init>(UnixFileStore.java:65)
	at java.base/sun.nio.fs.LinuxFileStore.<init>(LinuxFileStore.java:44)
	at java.base/sun.nio.fs.LinuxFileSystemProvider.getFileStore(LinuxFileSystemProvider.java:51)
	at java.base/sun.nio.fs.LinuxFileSystemProvider.getFileStore(LinuxFileSystemProvider.java:39)
	at java.base/sun.nio.fs.UnixFileSystemProvider.getFileStore(UnixFileSystemProvider.java:369)
	at java.base/java.nio.file.Files.getFileStore(Files.java:1479)
	at Basic.doTests(Basic.java:77)
	at Basic.main(Basic.java:49)
	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:564)
	at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:230)
	at java.base/java.lang.Thread.run(Thread.java:844)