The following test failed in the JDK18 CI:

java/io/File/GetXSpace.java

Here's a snippet from the log file:

----------System.err:(32/2482)----------
WARNING: A terminally deprecated method in java.lang.System has been called
WARNING: System::setSecurityManager has been called by GetXSpace (file:/opt/mach5/mesos/work_dir/slaves/35546316-ed70-4084-8244-d672e7734fd1-S100467/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/a559167e-050c-47e0-9b77-21c8954cc466/runs/1dfb257d-cfc8-4dfc-85c9-c7c06b47ad0f/testoutput/test-support/jtreg_open_test_jdk_tier2_part2/classes/3/java/io/File/GetXSpace.d/)
WARNING: Please consider reporting this to the maintainers of GetXSpace
WARNING: System::setSecurityManager will be removed in a future release
java.lang.RuntimeException: java.nio.file.NoSuchFileException: /run/user/0
at GetXSpace.compare(GetXSpace.java:224)
at GetXSpace.testDF(GetXSpace.java:395)
at GetXSpace.main(GetXSpace.java:429)
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:568)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.nio.file.NoSuchFileException: /run/user/0
at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:92)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:106)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
at java.base/sun.nio.fs.UnixFileStore.devFor(UnixFileStore.java:61)
at java.base/sun.nio.fs.UnixFileStore.<init>(UnixFileStore.java:68)
at java.base/sun.nio.fs.LinuxFileStore.<init>(LinuxFileStore.java:49)
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:381)
at java.base/java.nio.file.Files.getFileStore(Files.java:1498)
at GetXSpace.compare(GetXSpace.java:220)
... 8 more

JavaTest Message: Test threw exception: java.lang.RuntimeException: java.nio.file.NoSuchFileException: /run/user/0
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: java.nio.file.NoSuchFileException: /run/user/0
----------rerun:(36/5386)*----------