Hi I m using the venerable jengelman shadow plugin to create

Question

Hi I m using the venerable jengelman shadow plugin to create a fat jar containing a bunch of kotlin code I wrote When I use this fat jar as a dependency in subsequent kotlin projects the code compiles fine but IntelliJ doesn t recognize any of the kotlin code in the fat jar 1 Is this related the fact that my fat jar does not merge the `META INF kotlin module` files together 2 If so is there a gradle plugin that will help me with that 3 Otherwise why doesn t IntelliJ understand kotlin code that s been put into fat jars

mbonnin · Answer

gt IntelliJ doesn t recognize any of the kotlin code in the fat jar What do you mean by that Call sites that call into your fat jar are underlined in red Or something else I would expect the callsites to work as usual because typically the public API of your fat jar isn t relocated

Tianyu Zhu · Answer

Yes The Call sites that call into my fat jar are all underlined in red In fact IntelliJ doesn t even know the packages in my fat jar exist

mbonnin · Answer

That s weird I would expect that to work Invalidate and restart maybe shrug

Tianyu Zhu · Answer

I ve already tried that

tapchicoma · Answer

gt Is this related the fact that my fat jar does not merge the META INF kotlin module files together That could be the case that some ` kotlin module` files are missing Though they don t need to be merged

mbonnin · Answer

` kotlin modules` are only for things like top level declarations right Regular classes shouldn t need those

tapchicoma · Answer

not only `internal` visibility is also in those

tapchicoma · Answer

Here is <https github com JetBrains kotlin blob ad1b10cdb095e4c1f24a7b2acf19dbd7dbb19503 core metadata jvm src jvm module proto|the actual content> of these file

Tianyu Zhu · Answer

< tapchicoma> Thank you for replying If I understand correctly The ` kotlin module` files are not necessary for IntelliJ to work correctly and The ` kotlin module` files do not need to be merged to be effective

mbonnin · Answer

They are most likely required for top level functions and extension functions

mbonnin · Answer

At least the module file for you public API

tapchicoma · Answer

gt The kotlin module files are not necessary for IntelliJ to work correctly and They are required for Kotlin compilation gt The kotlin module files do not need to be merged to be effective They are files in protobuf format I doubt Shadow could merge them correctly

Tianyu Zhu · Answer

I see Right now Shadow simply dumps them all into `META INF ` I guess this is fine since the ` kotlin module` files are helping my code compile correctly But for some reason IntelliJ is still not picking up the classes in the fat jar Do you have an idea of why

tapchicoma · Answer

no idea they should be picked up by IDEA and it is working for Kotlin Gradle plugin

mbonnin · Answer

< Tianyu Zhu> want to share your fatjar here I can try to load it in my intelliJ

Tianyu Zhu · Answer

Uh it s for work so I can t share it confused

mbonnin · Answer

No problem