Hi,

I know GWT can generate Java source code with deferred binding. But
sometimes, I don't want to generate a new implementation, but based on some
annotations, I want to have the ability of injecting code at compile time.

e.g., with the class below

public class Foo {
  @Log
  public void bar() {
    @CheckPermission
    dosomething();
  }
}

At compile time, I want to have the ability to get the annotations available
on items, and inject code according to my application logic. So here, the
compiler should see:
public class Foo {
  public void bar() {
    log("begin");
    if (hasPermission()) {
      doSomething();
    } else {
      error();
    }
  }
}

with the extra code being injected. I'm wondering if anything in GWT allows
me to do that?

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