compress java libs alternative pack200 and jnlp

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Hello, i have a big application, i launch my app from the web using a jnlp file, and pack200 to compress it, and download faster. But since my app is getting bigger (about 35-45mb), some times pack200 just hang out, or some times, the jnlp downloader hang out, is there an alternative better to jnlp and pack200?

Posted 17-Jun-13 9:40am

David Alejandro Garcia Garcia

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Sergey Alexandrovich Kryukov 17-Jun-13 15:50pm

If something hangs, this is not because the application is getting bigger, this is because something is screwed up; perhaps just the probability of hanging grows. Any random failure is always hard to debug, and we don't have enough information.
—SA

David Alejandro Garcia Garcia 17-Jun-13 16:09pm

but, before the application started to grow,this did not happen.

when it finishes downloading works well, or when I put a direct link, I think where the problem is occurring in the pack200, because if i compress the libraries, and only use the jnlp takes much downloading but it not hang out

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AlphaDeltaTheta · Accepted Answer · 2013-06-20T21:52:00

Pack200 and "deflate" are the only ones that are supported in java out-of-the-box. Though you can write a Classloader that reads from other archive format such as BZip2 or 7z (LZMA), it requires to be present in a start-up stub applet, that contains the Classloader, downloads the archive containing main application, loads the classes from it and starts the app.

With Bzip2 or LZMA, you can get a better compression ratio than pack200, upto ~50%

See this[^]

It explains how to load from a jar, but same approach can be used to load from other types of archives too, take a look at Apache's Commons Compress, it has nice support for various archive types.

Good Luck!