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I have already asked about this for android, but I will broaden the question to include java in general... Are there any libraries for implementing a Http cache? I want to download my images more efficiently, honoring If-Modified-Since, etags, etc.
I'm sure there is a library to which one can pass the url of the image and let the lib handle all redirects or fetch the locally stored content in a cache?
BR // Jonas
Take a look at this and also this blog post. Maybe they help? Also look at a similar question here.