private void checkMethodsForOverridingFinal(ClassNode cn) {
for (MethodNode method : cn.getMethods()) {
Parameter[] params = method.getParameters();
for (MethodNode superMethod : cn.getSuperClass().getMethods(method.getName())) {
Parameter[] superParams = superMethod.getParameters();
if (!hasEqualParameterTypes(params, superParams)) continue;
if (!superMethod.isFinal()) break;
addInvalidUseOfFinalError(method, params, superMethod.getDeclaringClass());
return;
}
}
}
private void checkMethodsForIncorrectModifiers(ClassNode cn) {
if (!cn.isInterface()) return;
for (MethodNode method : cn.getMethods()) {
if (method.isFinal()) {
addError(
"The "
+ getDescription(method)
+ " from "
+ getDescription(cn)
+ " must not be final. It is by definition abstract.",
method);
}
if (method.isStatic() && !isConstructor(method)) {
addError(
"The "
+ getDescription(method)
+ " from "
+ getDescription(cn)
+ " must not be static. Only fields may be static in an interface.",
method);
}
}
}