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Optimize listJar() method
listJar() is a method that returns a list of files contained within a Jar file according to a glob pattern.
It used to rely on a ZipInputStream that needs to read the entire file to discover its content.
Now switched to a ZipFileSystem that is able to use the Central Directory at the end of the file directly to list contained files, therefore it is by order of magnitude faster.
Optimize pathing jar generation
Manually generate a file name using regular Random rather than using Files.createTempFile() since this latter uses SecuredRandom which itself queries network interfaces which takes more time than a good old System.nanotime() of Random.