Java 在使用NioLocker将文件锁定在FileReadingMessageSource轮询器中后，应在何时解锁文件？

我使用公共源代码在Spring集成中设置目录轮询器。轮询器使用NioLocker来锁定和归档，根据JavaDocs，我负责使用NioFileLocker.unlock（file）解锁文件

我的主要问题是这应该在什么时候发生，当然是如何发生

我最初的想法是在我的作业侦听器将文件移动到新目录之后。此时，我只知道文件路径名，没有文件本身的句柄

目录轮询器代码：

    @Bean
    @InboundChannelAdapter(value = "claimInputChannel", poller = @Poller(fixedDelay = "5000"))
    public FileReadingMessageSource claimPollingFileSource(){
        logger.debug("Setting up inbound channel adapter ===> claimInputChannel");

        CompositeFileListFilter<File> compositeFileListFilter= new CompositeFileListFilter<File>();
        compositeFileListFilter.addFilter(new RegexPatternFileListFilter("(?i).*_CLAIM_.*[.]txt"));
        compositeFileListFilter.addFilter(lastModifiedFilter());
        compositeFileListFilter.addFilter(new IgnoreHiddenFileListFilter());
        compositeFileListFilter.addFilter(new AcceptOnceFileListFilter<File>());

        FileReadingMessageSource pollDirectory = new FileReadingMessageSource();

        pollDirectory.setDirectory(new File(pollingDirectory));
        pollDirectory.setAutoCreateDirectory(false); 
        pollDirectory.setFilter(compositeFileListFilter);
        pollDirectory.setLocker(new NioFileLocker());           
        return pollDirectory;
    }

@Override
public void afterJob(JobExecution jobExecution) {
    logger.debug("In afterJob routine");

    if (jobExecution.getStatus() == BatchStatus.COMPLETED) {    
        // check if directory exists
        File dir = new File(processedDirectory);
        if (dir.exists()) {
            Path sourcePath = Paths.get(jobExecution.getJobParameters().getString("fileName"));
                String target = processedDirectory + "/" + sourcePath.getFileName();
            logger.debug("Moving processed file " + sourcePath.toString() + " to " + target);

            try {
                Files.move(sourcePath, Paths.get(target), StandardCopyOption.REPLACE_EXISTING);
            } catch (IOException e) {
                logger.error("Something went wrong in moving file to processed directory.");
                e.printStackTrace();
            }
        } else {
            logger.error("The " + processedDirectory + " does not exist.");
        }

    } else {
        logger.debug("Batch job is not yet complete.");
    }

}