this bug might be caused by miranda methods. detected bu jacks

==== 15.12.2.2-ambiguous-1 More than one maximally specific method
        is ambiguous, and illegal. Here, A.foo(String) and
        T151222a1.foo(Object) are both maximally specific, as the latter
        does not override the former. FAILED
==== Contents of test case:

    compile [saveas T151222a1.java {
interface A {
    void foo(String s);
}
abstract class T151222a1 implements A {
    void foo(Object o) {}
    {
        foo("");
    }
}
    }]

---- Result was:
PASS
---- Result should have been:
FAIL
==== 15.12.2.2-ambiguous-1 FAILED


==== 15.12.2.2-ambiguous-2 More than one maximally specific method
        is ambiguous, and illegal. Here, A.foo(String) and
        B.foo(Object) are both maximally specific, as the latter
        does not override the former. FAILED
==== Contents of test case:

    compile [saveas T151222a2.java {
interface A {
    void foo(String s);
}
interface B {
    void foo(Object o);
}
abstract class T151222a2 implements A, B {
    {
        foo("");
    }
}
    }]

---- Result was:
PASS
---- Result should have been:
FAIL
==== 15.12.2.2-ambiguous-2 FAILED