JavacBrokenError.java

public class JavacBrokenError {
  public static void main(String[] args) {
    test(5.0);
  }
  
  void test(double d) {}
  void test(Double d) {}
}


  
// Compilng the above with javac8 as well as javac11 produces error:
//   both method test(Double) in Test and method test(double) in Test match
//   1 error

// This is however incorrect; this invocation is not ambiguous; the lowercase-d version
// wins by way of JLS 15.12.2.2-4. However, there is a different error in this code:
// the test methods aren't static and are being invoked from a static context. 
// The proper behaviour is that javac had reported:

// error: non-static method test(double) cannot be referenced from a static context

// NB: If you make the test methods static, the code compiles properly.
// NB2: ecj produces the correct error.