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Speed ​​up the dex process with jar files, is this possible?

I have an "old" machine that is more than enough to develop my first application on the Android market, but only with Java!

I recently tried Kawa and Scala (I switched to functional programming about six years ago using LISP / Scheme, and I have consumed Erlang and Haskell since then) and I have to say that I really love Scalas conciseness and Kawa is still fantastic (long used for the project).

However ... the build time when "dexing" on my machine is in minutes (!), When the "dx" program works with the kawa.jar file.

Does anyone know if it is possible to "cache" or "pre-build" a Jar file so that the desxing process only does what has changed. It's a little annoying and sad to see that it uses jar files that I used, although they are the same as last time.

I could buy a faster new car, but now I don’t have a spare dosh, so I want to know what kind of optimizations I could do ... :( Thank you.

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This article may help - Custom loading classes in Dalvik . You will need to use several pre-compiled dex files and load the classes as needed.

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