delete file from jetty server using java 7

Question

I am working on web application which is running on jetty server. In this application I am uploading and image and use this image in my jsp page. Now when I want to delete it using

Files.delete(File Path)

It gives me error

java.nio.file.FileSystemException: "File Path": The process cannot access the file because it is being used by another process.

Answer 1

Close all streams associated with that file before you attempt to delete it. Consider also the use of try-with-resources with the file you're uploading to.

Answer 2

On Windows Jetty is locking static files it serves via default servlet. It is a common issue. It has something to do with caching. See wiki: http://wiki.eclipse.org/Jetty/Howto/Deal_with_Locked_Windows_Files

You need to switch useFileMappedBuffer to false.