public abstract class FixClassAndInterface extend<caret>s A { @Override public void m1() {} } abstract class A { abstract void m1(); abstract void m2(); } abstract class B extends A { void m1() { }; } class C1 extends B { @Override public void m2() { } } class C2 extends B { @Override public void m2() { } } class C3 extends B { @Override public void m2() { } } class C4 extends B { @Override public void m2() { } } class C5 extends B { @Override public void m2() { } }