FYI I continued my research into multipart coercions and added a small PR (with one of 3 new tests failing) to demonstrate a potential bug and a workaround

https://github.com/juxt/yada/pull/117

make that 2 out of 4 tests actually

@vinnyataide: It's normal for any JVM since Java 7 to take 1 Gb heap up-front if you have enough memory. Is that what you mean? You can provide args to the java proc to override these defaults

Yeah that is what I meant, thanks now I see what a Stack based vm means, thanks

-Xmx256 will limit it to 256MB, iirc