GraalVM native images apparently supports Swing applications

Question

GraalVM native images apparently supports Swing applications with the java 16 variant in dev builds I m curious has anyone tried it yet for compose desktop

jim · Answer

I haven t heard of anyone trying it yet I d be super curious to hear how it goes Since untested code never works my assumption is you will run into some bugs but please file issues Just testing and filing bugs will help us to know that 1 there is interest 2 what the problems are so hopefully we can fix them

alexey.tsvetkov · Answer

Personal opinion it s probably won t be good for many real world applications because their community edition supports only the Serial GC Paid enterprise license supports the G1 as well but under Java SE per user subscription I doubt that the serial gc non parallel non generational stop amp copy GC is good enough for most interactive GUI apps

alexey.tsvetkov · Answer

But it will be interesting to see how it would work anyway slightly smiling face

spierce7 · Answer

< alexey tsvetkov> Is that how graal native image would do garbage collection as well

alexey.tsvetkov · Answer

I m not sure I understood the question correctly but a native image for a JVM app does need GC there is no way around it

spierce7 · Answer

of course it needs garbage collection slightly smiling face I m just wondering if it uses the same GC Algorithm I also wonder what kind of thread locking performance we d see on desktop laptop processors

Michael Paus · Answer

If you want to see GUI apps as native images in action then you just have to look at the Gluon GraalVM native image toolchain for JavaFX It is available for Windows macOS Linux Android iOS and the performance is quite good I d say for most apps it is absolutely usable Going this way with Compose would offer the possibility to go cross platform especially iOS and be able to reuse all the Java libraries out there which are not available in Kotlin No need to replace them with something else as you have to do in KMM

spierce7 · Answer

I ve seen gluon but have avoided using it

smallshen · Answer

I have tried but it fails looks like graalvm can t solve some bytecode that related to coroutines I already have submitted issue on their github issue tracker <https github com oracle graal issues 3342>

spierce7 · Answer

< smallshen> I think you ll need to provide a reproducer more information for your bug to get attention

smallshen · Answer

I ll do that rn since I got time

spierce7 · Answer

I m watching your bug as I too am interested in using graalvm for compose desktop