无法获得实现扩展另一个接口进行编译的接口的Java枚举

时间：2013-05-22 19:15:49

标签： java enums compiler-bug

我想创建一个实现I2的枚举，扩展I1：

package a;

import static a.E1.E1A;
interface I1 extends I1 {}
interface I2 extends I1 {}
enum E1 implements I2 { E1A, A1B; }

class A {
    public static void main(String[] args) {
        switch (E1A) {
            case E1A:
                System.out.println("it worked!");
        }
    }
}

在我添加I1并使I2延长I1之前，它一直有效。现在它可以工作，但它找不到E1A（之前的静态就是这样，所以这不是问题）：

$ javac A.java
A.java:3: cannot find symbol
symbol  : static E1A
location: class a.E1
import static a.E1.E1A;
^


The system is out of resources.
Consult the following stack trace for details.
java.lang.StackOverflowError
    at com.sun.tools.javac.code.Types$18.visitClassType(Types.java:1630)
    at com.sun.tools.javac.code.Types$18.visitClassType(Types.java:1620)
    at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:568)
    at com.sun.tools.javac.code.Types$UnaryVisitor.visit(Types.java:3294)
    at com.sun.tools.javac.code.Types.supertype(Types.java:1617)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:889)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:891)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
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    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
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    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
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    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
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    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
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    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    [...]

为什么？

2 个答案:

答案 0 :(得分：6)

我用Javac 1.7.0_15

得到这个 
C:\Users\Andry\test>javac a\A.java
a\A.java:4: error: cyclic inheritance involving I1
interface I1 extends I1 {}
^
1 error

您的代码错误（界面无法自行扩展），但您可能在javac中发现了一个错误！

答案 1 :(得分：1)

看起来您声明E1.E1A，并在同一文件中导入您定义的内容。

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