I created the AcceptOnceFileListFilter bean in xml and reference that inside ChainFileListFilter below is the order of my chain filters

I’m using spring integration xml. I have a file inbound channel adapter with a poller of fixed-rate=1000. I’m also using AcceptFileOnlyOnce filter and taskExecutor with multiple threads.
My directory is /apps/emailService/input. Let’s say there’s 10k files in that directory and I restart my application. It will just start and not do anything to the current existing files. Sometimes even incoming files are not processed if there’s already files in the current directory.