Excel file only read once - subsequent parses hang

[john-london]

I don't know for sure if this is an issue with this plugin, or whether it is caused by something I am doing / not doing. Details are here: http://stackoverflow.com/questions/29127028/grails-spring-batch-excel-reader-only-reads-file-once.

When I read an XLSX file, it works the first time, but subsequent attempts to parse the same file (by restarting Grails) just mean the job continues indefinitely. I need to reboot the computer to be able to rerun the job (and then it will only run once before hanging again).