boolean (PsiType type1, PsiType type2, String className) { PsiClass class1 = PsiUtil.resolveClassInClassTypeOnly(type1); if (class1 == null) return false; PsiClass class2 = PsiUtil.resolveClassInClassTypeOnly(type2); if (class2 == null) return false; PsiClass superClass = JavaPsiFacade.getInstance(class1.getProject()).findClass(className, class1.getResolveScope()); if (superClass == null) return false; return InheritanceUtil.isInheritorOrSelf(class1, superClass, true) && InheritanceUtil.isInheritorOrSelf(class2, superClass, true); }