Check if a file is locked in Java

I tryed combination of answers (@vlad) on windows with access to Linux Smb share and it worked for me. The first part was enough for lock like Excel but not for some editors. I added second part (rename) for testing both situations.

public static boolean testLockFile(File p_fi) {
    boolean bLocked = false;
    try (RandomAccessFile fis = new RandomAccessFile(p_fi, "rw")) {
      FileLock lck = fis.getChannel().lock();
      lck.release();
    } catch (Exception ex) {
      bLocked = true;
    }
    if (bLocked)
      return bLocked;
    // try further with rename
    String parent = p_fi.getParent();
    String rnd = UUID.randomUUID().toString();
    File newName = new File(parent + "/" + rnd);
    if (p_fi.renameTo(newName)) {
      newName.renameTo(p_fi);
    } else
      bLocked = true;
    return bLocked;
  }

For Windows, you can also use:

new RandomAccessFile(file, "rw")

If the file is exclusively locked (by MS Word for example), there will be exception: java.io.FileNotFoundException: <fileName> (The process cannot access the file because it is being used by another process). This way you do not need to open/close streams just for the check.

Note - if the file is not exclusively locked (say opened in Notepad++) there will be no exception.

Improved Amjad Abdul-Ghani answer, I found that no error was produced until attempting to read from the file

public static boolean isFilelocked(File file) {
     try {
         try (FileInputStream in = new FileInputStream(file)) {
             in.read();
             return false;
         }
     } catch (FileNotFoundException e) {
         return file.exists();
     } catch (IOException ioe) {
         return true;
     }
 }