IllegalStateException: No such method : java/lang/String.codePointAt(I)I

[sdeleuze]

First, congrats with the latest major refactoring, pretty impressed by the work you have done.

I was able to create a simple hello world with 2023-03-28 and the new Wasm backend, but when I try to add some validation logic with the great https://github.com/making/yavi validation library, I get the following error:
Error running bytecoder: java.lang.IllegalStateException: No such method : java/lang/String.codePointAt(I)I

Since I plan to contribute when I will be more familiar with the code base, any explanation on what is missing and what should be done to fix this would be welcome in order to help me to understand how to fix this kind of issue myself for future potential contributions.

browser-validation.zip

[mirkosertic]

Testcase and bug fix merged to master.

[sdeleuze]

Thanks a lot!