java.io.IOException: Mount point not found at sun.nio.fs.LinuxFileStore.findMountEntry(java.base/LinuxFileStore.java:91) at sun.nio.fs.UnixFileStore.<init>(java.base/UnixFileStore.java:65) at sun.nio.fs.LinuxFileStore.<init>(java.base/LinuxFileStore.java:44) at sun.nio.fs.LinuxFileSystemProvider.getFileStore(java.base/LinuxFileSystemProvider.java:51) at sun.nio.fs.LinuxFileSystemProvider.getFileStore(java.base/LinuxFileSystemProvider.java:39) at sun.nio.fs.UnixFileSystemProvider.getFileStore(java.base/UnixFileSystemProvider.java:369) at java.nio.file.Files.getFileStore(java.base/Files.java:1464)

JDK Bug System | Brian Burkhalter | 5 months ago
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    If the class GetFileStore included below is for example run in a chroot environment it will fail with an IOException whose message is "Mount point not found". import java.nio.file.Files; import java.nio.file.FileStore; import java.nio.file.Path; import java.nio.file.Paths; public class GetFileStore { public static void main(String[] args) throws Throwable { String userDir = System.getProperty("user.dir"); System.out.printf("Retrieving FileStore for %s%n", userDir); Path path = Paths.get(userDir); FileStore fileStore = Files.getFileStore(path); System.out.printf("%s is in FileStore %s of type %s%n", userDir, fileStore.name(), fileStore.type()); } } For example if /proc/mounts contains only none /proc proc rw,relatime 0 0 running the above class within /home behaves as follows: /home# java GetFileStore Retrieving FileStore for /home Exception in thread "main" java.io.IOException: Mount point not found at sun.nio.fs.LinuxFileStore.findMountEntry(java.base/LinuxFileStore.java:91) at sun.nio.fs.UnixFileStore.<init>(java.base/UnixFileStore.java:65) at sun.nio.fs.LinuxFileStore.<init>(java.base/LinuxFileStore.java:44) at sun.nio.fs.LinuxFileSystemProvider.getFileStore(java.base/LinuxFileSystemProvider.java:51) at sun.nio.fs.LinuxFileSystemProvider.getFileStore(java.base/LinuxFileSystemProvider.java:39) at sun.nio.fs.UnixFileSystemProvider.getFileStore(java.base/UnixFileSystemProvider.java:369) at java.nio.file.Files.getFileStore(java.base/Files.java:1464) at GetFileStore.main(GetFileStore.java:11)

    JDK Bug System | 5 months ago | Brian Burkhalter
    java.io.IOException: Mount point not found at sun.nio.fs.LinuxFileStore.findMountEntry(java.base/LinuxFileStore.java:91) at sun.nio.fs.UnixFileStore.<init>(java.base/UnixFileStore.java:65) at sun.nio.fs.LinuxFileStore.<init>(java.base/LinuxFileStore.java:44) at sun.nio.fs.LinuxFileSystemProvider.getFileStore(java.base/LinuxFileSystemProvider.java:51) at sun.nio.fs.LinuxFileSystemProvider.getFileStore(java.base/LinuxFileSystemProvider.java:39) at sun.nio.fs.UnixFileSystemProvider.getFileStore(java.base/UnixFileSystemProvider.java:369) at java.nio.file.Files.getFileStore(java.base/Files.java:1464)

    Root Cause Analysis

    1. java.io.IOException

      Mount point not found at sun.nio.fs.LinuxFileStore.findMountEntry(java.base/LinuxFileStore.java:91) at sun.nio.fs.UnixFileStore.<init>(java.base/UnixFileStore.java:65) at sun.nio.fs.LinuxFileStore.<init>(java.base/LinuxFileStore.java:44) at sun.nio.fs.LinuxFileSystemProvider.getFileStore(java.base/LinuxFileSystemProvider.java:51) at sun.nio.fs.LinuxFileSystemProvider.getFileStore(java.base/LinuxFileSystemProvider.java:39) at sun.nio.fs.UnixFileSystemProvider.getFileStore(java.base/UnixFileSystemProvider.java:369) at java.nio.file.Files.getFileStore(java.base/Files.java:1464)

      at GetFileStore.main()
    2. Unknown
      GetFileStore.main
      1. GetFileStore.main(GetFileStore.java:11)
      1 frame