Can't get Java enum that implements interface which extends another interface to compile

I want to create an enum that implements I2, which extends 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!");
        }
    }
}

It was working until I added I1 and made I2 extend I1. Now it works but it can't find E1A (the static was there before so that's not the issue):

$ 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)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.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)
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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)
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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)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    at com.sun.tools.javac.comp.Resolve.findMemberType(Resolve.java:897)
    [...]

Why?

Solution

I get this with Javac 1.7.0_15

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

Your code is wrong (an interface can't extend itself), but you probably have found a bug in javac!