Re: GWt TeaVM comparison

You can use GraalVM to compile Java to WebAssembly.

 The main limitation is multithreading; almost everything else works. 

If you need a very small WASM binary, you can use J2CL. 

I’ve actually already added WASM support to the j2cl-maven-plugin, but I still haven’t gotten around to publishing it.

On Sep 3, 2026, at 8:31 PM, Craig Mitchell <mail@craig-mitchell.com> wrote:

Do you use it to compile to JavaScript or WebAssembly?

I'd love to compile Java to WebAssembly, but I'm too nervous about the edge cases.

On Friday, 4 September 2026 at 7:43:09 am UTC+10 Tim Macpherson wrote:

Maybe interesting for some:

.

I'm using TeaVM. Main problem is source map debugging will  usually descend into transpiled js, GWT doesn't have that problem otherwise ok it it lasts.

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