Test test/jdk/java/lang/invoke/lambda/LogGeneratedClassesTest.java fails on rpm build mock environment, test log snippet:

java.io.IOException: Mount point not found
  at java.base/sun.nio.fs.LinuxFileStore.findMountEntry(LinuxFileStore.java:104)
  at java.base/sun.nio.fs.UnixFileStore.<init>(UnixFileStore.java:69)
  at java.base/sun.nio.fs.LinuxFileStore.<init>(LinuxFileStore.java:48)
  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:447)
  at java.base/java.nio.file.Files.getFileStore(Files.java:1503)
  at LogGeneratedClassesTest.testDumpDirNotWritable(LogGeneratedClassesTest.java:210)