Method<JavaClass> method = javaClass.addMethod("public void hello()");
assertVisibility(Visibility.PUBLIC, method);
assertVisibility("public", method);
method = javaClass.addMethod("protected void hello()");
assertVisibility(Visibility.PROTECTED, method);
assertVisibility("protected", method);
method = javaClass.addMethod("private void hello()");
assertVisibility(Visibility.PRIVATE, method);