I've been using JAI 1.1.2 for the past year. It's an incredibly powerful tool, though I will confess that the API is more than a bit quirky.
Early this year, Sun made JAI an open-source project available at java.net. That project has been working on the 1.1.3 release for most of the year. It's now in beta, with a few enhancements and a lot of bug fixes.
The most significant enhancement is that JAI can now be used with Java WebStart. Previously it had to be installed as a JRE extension.
Also, one of the big bugs is fixed. Issue #13 is fixed in the beta. It could cause the JPEG codec to use excessive amounts of memory when decoding large untiled images. (Which we do in our app a lot!)
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