code: public void setMemoryHandler(@NonNull MemoryHandler memoryHandler) {
          globalLock.writeLock().lock();
  
          this.memoryHandler = memoryHandler;
          this.memoryHandler.init(configuration, this);
  
          globalLock.writeLock().unlock();
      }
docs: This method specifies Mover implementation to be used internally
  @param memoryHandler