is native but has no annotation

[frankbauer]

Hi.

I was trying to use the SystemCompiler in a TeaVM Project with a WASM target:

JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
String[] compilerArgs = { "public class Foo { }" };
compiler.run(null, null, null, compilerArgs);

However building it gives me the following (among many other) errors:

Method org.teavm.jso.typedarrays.Int8Array.create(I)Lorg/teavm/jso/typedarrays/Int8Array; is native but has no org.teavm.interop.Import annotation on it Method org.teavm.jso.ajax.XMLHttpRequest.create()Lorg/teavm/jso/ajax/XMLHttpRequest; is native but has no org.teavm.interop.Import annotation on it

Did I miss an important setup step? I was trying a basic Hello World first to test the toolchain, and that did work.

[konsoletyper]

1. TeaVM is not a JVM! It most likely won't run heavyweight applications like javac, Eclipse or Tomcat. It's usecase it close to GWT: you write code in subset of Java (mostly subset of Java libraries, with 100% syntax).
2. WebAssembly backend is experimental, which means it does not support 100% of features available in JavaScript backend. What version of TeaVM are you using? You better use 0.6.0 versions published on bintray. Is there any reason you prefer to use WebAssembly instead of JavaScript target?
3. There's successfull attempt to compile javac to JavaScript: teavm-javac. It does not work with WebAssembly yet. Also, it's a little bit outdated, I'll update it later.

[frankbauer]

Thanks for the fast feedback.

2. I am currently using 0.6.0-dev-623
3. I thought WebAssembly would have performance advantages over plain JavaScript. But I do not have any preferences. Thanks for the link, this looks promising.

[quantum6]

I am not sure about what you mean. I suppose you can copy compiled result to tomcat，and visit the html in browser. Here is a blog(You can ignore chinese text, read command and image) https://blog.csdn.net/quantum7/article/details/113875769