Examples of java.nio.channels.FileLock.release()

java.nio.channels.FileLock.release()
Releases this particular lock on the file. If the lock is invalid then this method has no effect. Once released the lock becomes invalid. @throws ClosedChannelException if the channel is already closed when an attempt to release the lock is made. @throws IOException some other IO exception occurred.

                    fd.write(String.valueOf(target).getBytes(ENCODING));
                    success = true;
                    return new LocalFileLockObject<T>(target, lockFile, fd, lockEntity);
                } finally {
                    if (success == false) {
                        lockEntity.release();
                    }
                }
            }
        } finally {
            if (success == false) {

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      try {
        FileLock fileLock = raf.getChannel().tryLock();


        if (fileLock != null) {
          logger.warn("Removing invalid lock {}", getLockedBy());
          fileLock.release();
          revokeLock = true;
        }
      }
      catch (OverlappingFileLockException exc) {
        // lock is still valid

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    FileChannel fc = new FileOutputStream(f).getChannel();
    FileLock fl = fc.lock();
    try {
      fc.write(ByteBuffer.wrap(data));
    } finally {
      fl.release();
      fc.close();
    }
  }
  
  private byte[] compose() {

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          output.flush();
        } finally {
          // Unlock
          try {
            if (lock != null) {
              lock.release();
            }
          } catch (ClosedChannelException e) {
          }
        }
      } finally {

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      oldFile.seek(0);
      int oldVersion = oldFile.readInt();
      if (oldVersion < LAST_PRE_UPGRADE_LAYOUT_VERSION)
        return false;
    } finally {
      oldLock.release();
      oldFile.close();
    }
    return true;
  }

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          output.flush();
        } finally {
          // Unlock
          try {
            if (lock != null) {
              lock.release();
            }
          } catch (ClosedChannelException e) {
          }
        }
      } finally {

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            PrintWriter writer = new PrintWriter(out, false);
            writer.println(DATE_FORMAT.format(date)+" - "+action+" - "+username);
            writer.flush();
            writer.close();
            if(lock.isValid()) {
                lock.release();
            }
        } catch (IOException e) {
            throw new RuntimeException("Unable to write to authentication log file", e);
        }
    }

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                   files strings are configured that somehow map to the same file.*/
                final FileLock lock = channel.lock(0, Long.MAX_VALUE, false);
                try {
                    super.write(bytes, offset, length);
                } finally {
                    lock.release();
                }
            } catch (final IOException ex) {
                throw new AppenderRuntimeException("Unable to obtain lock on " + getName(), ex);
            }

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      oldFile.seek(0);
      int odlVersion = oldFile.readInt();
      if (odlVersion < LAST_PRE_UPGRADE_LAYOUT_VERSION)
        return false;
    } finally {
      oldLock.release();
      oldFile.close();
    }
    // check consistency of the old storage
    File oldDataDir = new File(sd.root, "data");
    if (!oldDataDir.exists())

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        deleteDir(newDataDir);
      // move "data" to "current"
      rename(oldDataDir, newDataDir);
      // close and unlock old file
    } finally {
      oldLock.release();
      oldFile.close();
    }
    // move old storage file into current dir
    rename(oldF, new File(sd.getCurrentDir(), "storage"));

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