public void completeInterruptedTransaction(int transactionId1, int transactionId2) {
   if (!File4.exists(lockFileName(_fileName))) {
     return;
   }
   if (!lockFileSignalsInterruptedTransaction()) {
     return;
   }
   ByteArrayBuffer buffer = new ByteArrayBuffer(Const4.INT_LENGTH);
   openLogFile();
   read(_logFile, buffer);
   int length = buffer.readInt();
   if (length > 0) {
     buffer = new ByteArrayBuffer(length);
     read(_logFile, buffer);
     buffer.incrementOffset(Const4.INT_LENGTH);
     readWriteSlotChanges(buffer);
   }
   deleteLockFile();
   closeLogFile();
   deleteLogFile();
 }
 private void deleteLogFile() {
   File4.delete(logFileName(_fileName));
 }