Java – why can’t you call a super constructor from an enumeration constructor?

public enum A {

public enum A {
     A(1);

     private A(int i){
     }

     private A(){
         super(); // compile - error
             // Cannot invoke super constructor from enum constructor A()
     }

}

Here is the enumeration hierarchy a from abstract Java Lang. enum extension Java lang.Object

Class c = Class.forName("/*path*/.A");
System.out.println(c.getSuperclass().getName());
System.out.println(Modifier.toString(c.getSuperclass().getModifiers()).contains("abstract"));
System.out.println(c.getSuperclass().getSuperclass().getName());

Solution

502. That’s an error.

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