Spring Batch无法从资源中删除创建的文件

Question

我已经尝试删除@afterJob上的文件，并且在主要步骤之后执行第二步，但是没有成功。任何想法。

java.nio.file.FileSystemException: pathtofile/filename: The process cannot access the file because it is being used by another process

。

            .listener(completionListener)
            .start(transactionCsvFileToConsoleWriteStep)
            .next(deleteFileStep())
            .build();

@Bean
public Step deleteFileStep() {
    return stepBuilderFactory.get("deleteFileStep")
            .tasklet(fileDeletingTasklet())
            .build();
}

@Bean
public FileDeletingTasklet fileDeletingTasklet() {
    FileDeletingTasklet tasklet = new FileDeletingTasklet();
    tasklet.setDirectory(inputResources);
    return tasklet;
}

public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {

    File[] files = directory.getFile().listFiles();

    for (File file : files) {
        boolean deleted = file.delete();
        if (!deleted) {
            throw new UnexpectedJobExecutionException("Could not delete