No, Martin, I’m not experiencing these problems, and my mentioning Spring was 
tangential.

I’m basically asking that ajc support Kotlin source files.

> On May 13, 2019, at 5:43 PM, Martin Gainty <mgai...@hotmail.com> wrote:
> 
> from what i see its not a matter of spring like or dislike..its a matter of 
> keeping JDK class file consist
> 
> aj => .java => .class
> 
> kt => .java => .class
> 
> but this same scenario goes fubar when you switch JDKs ..this is an example
> 
> aj => 1_dot_eight.java => 1_dot_eight.class
> 
> kt  => 1_dot_nine.java => 1_dot_none.class
> 
> because spring is native compiled to 1.8 class format ..all .aj and all .kt 
> dsl files will compile to 1.8 class
> access to class files in jar is no problem 
> doing reflection e.g. Class.forName(One_dot_eight); also no problem
> 
> things fall apart quickly with aj, kt or .java files when you mix 1.8 class 
> files with 1.9 class files
> 
> (1.9 lambda functions fubar on accessing 1.8 class files)
> 
> maven folk say full compile the whole lot to your runtime JDK will supposedly 
> cure this scenario
> 
> is this what you're experiencing?
> 
> martin-
> https://stackoverflow.com/questions/36780990/convert-inter-type-declaraton-from-aj-to-java-with-aspect-annotations
>  
> <https://stackoverflow.com/questions/36780990/convert-inter-type-declaraton-from-aj-to-java-with-aspect-annotations>
> https://stackoverflow.com/questions/34957430/how-to-convert-a-kotlin-source-file-to-a-java-source-file
>  
> <https://stackoverflow.com/questions/34957430/how-to-convert-a-kotlin-source-file-to-a-java-source-file>
>  
> <https://stackoverflow.com/questions/34957430/how-to-convert-a-kotlin-source-file-to-a-java-source-file>
>      
> How to convert a kotlin source file to a java source file - Stack Overflow - 
> Stack Overflow - Where Developers Learn, Share, & Build Careers 
> <https://stackoverflow.com/questions/34957430/how-to-convert-a-kotlin-source-file-to-a-java-source-file>
> To convert a Kotlin source file to a Java source file you need to (when you 
> in Android Studio):. Press Cmd-Shift-A on a Mac, or press Ctrl-Shift-A on a 
> Windows machine.. Type the action you're looking for: Kotlin Bytecode and 
> choose Show Kotlin Bytecode from menu. Press Decompile button on the top of 
> Kotlin Bytecode panel.; Now you get a Decompiled Java file along with Kotlin 
> file in a ...
> stackoverflow.com <http://stackoverflow.com/>
> 
>  
> <https://stackoverflow.com/questions/36780990/convert-inter-type-declaraton-from-aj-to-java-with-aspect-annotations>
>  
> aop - Convert Inter-Type declaraton from .aj to .java with Aspect annotations 
> - Stack Overflow - Stack Overflow - Where Developers Learn, Share, & Build 
> Careers 
> <https://stackoverflow.com/questions/36780990/convert-inter-type-declaraton-from-aj-to-java-with-aspect-annotations>
> What you want is not possible with @AspectJ style, you need to use the more 
> powerful native syntax. (Why do you want to switch anyway?) The reason behind 
> this is that the Java compiler can only convert @DeclareParents to a form in 
> which Village is a subclass of whatever interface implementation you define 
> in your aspect, for example something like this:
> stackoverflow.com <http://stackoverflow.com/>
> 
> From: aspectj-users-boun...@eclipse.org <aspectj-users-boun...@eclipse.org> 
> on behalf of Matthew Adams <matt...@matthewadams.me>
> Sent: Monday, May 13, 2019 5:53 PM
> To: aspectj-users@eclipse.org
> Subject: [aspectj-users] Formal support for Kotlin?
>  
> Hi all,
> 
> I’ve been doing some googling around to see what I can find with regard to 
> using AspectJ with Kotlin.  Things don’t look particularly great at first 
> glance:  
> https://stackoverflow.com/questions/44364633/aspectj-doesnt-work-with-kotlin 
> <https://stackoverflow.com/questions/44364633/aspectj-doesnt-work-with-kotlin>
> 
> There are of course many more hits, but it appears the current state of the 
> art is to compile with kotlin, then apply AspectJ to the kotlin .class files.
> 
> Problem is, we have some libraries that we can only compile via ajc due to 
> their design, so I’m wondering what thought has been given to adding kotlin 
> language support to ajc.  I didn’t see any issues requesting Kotlin language 
> support in ajc so far.  Kotlin looks promising, and it appears that Spring 
> also is liking Kotlin enough to add support for it.  I’d love to have my 
> Kotlin & AspectJ, too.
> 
> Any comments, folks?
> 
> -matthew
> 
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