为什么这个覆盖方法声明会产生编译错误？

Question

下面的代码：

class Parent { 
    public void method(List parameter){ 
    } 
} 

class Child extends Parent { 

    public void method(List<String> parameter) { 
    } 
} 

失败，出现以下错误编译：

Parent.java:12: error: name clash: method(List<String>) in Child and method(List) in Parent have the same erasure, yet neither overrides the other 
    public void method(List<String> parameter) { 
       ^
1 error 

但我检查JLS8在§8.4.8.1说：

An instance method mC declared in or inherited by class C, overrides from C another method mA declared in class A, iff all of the following are true:

...

The signature of mC is a subsignature (§8.4.2) of the signature of mA.

...

而且在§8.4.2中它说：

The signature of a method m1 is a subsignature of the signature of a method m2 if either:

...

the signature of m1 is the same as the erasure (§4.6) of the signature of m2.

在这种情况下，原始和覆盖方法声明都具有相同的擦除，那么为什么编译失败？