Android lollipop framework.jar has no classes.dex

[Manvir Singh]

Im trying to modify framework.jar after the modifications everything builds with no errors but the problem comes when i put the framework.jar on my device my device gives me a error basicly saying there is no "classes.dex" in framework.jar so i checked framework.jar by opening it as a zip and the only file in the jar is "preloaded-classes". So my question is how can I get it to compile so that the framework.jar has the "classes.dex" file?

[Farooq Shiak]

classes.dex as far as i know generated when you make apk file not jar file android accept .apk files not jar files

[Miro Kropáček]

No, this is a good question. Formerly, it was possible to download /system/framework/framework.jar, extract classes.dex from there and use them for experiments. Now the file classes.dex is not present anymore, where has it gone?

[Eduardo Aguirre]

AFAIK the virtual machine changed, so I think that maybe the dex files don't exist anymore

[Miro Kropáček]

Yes, of course. The question is how to access those new, odex, if I'm not mistaken, files? The SDK must be somewhere on the disk for sure :)

[pip...@gmail.com]

In Lollipop and the switch to ART and production builds with WITH_DEXPREOPT=true, the bootclasspath files are inside Boot.oat (/system/framework/arm/boot.oat), you won't wind anything inside the frameworks jars.

You have to build with WITH_DEXPREOPT=false to have the classic framework.jar with classes.dex inside.