13af6ab5fSopenharmony_ci/**
23af6ab5fSopenharmony_ci * Copyright (c) 2024 Huawei Device Co., Ltd.
33af6ab5fSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
43af6ab5fSopenharmony_ci * you may not use this file except in compliance with the License.
53af6ab5fSopenharmony_ci * You may obtain a copy of the License at
63af6ab5fSopenharmony_ci *
73af6ab5fSopenharmony_ci * http: //www.apache.org/licenses/LICENSE-2.0
83af6ab5fSopenharmony_ci *
93af6ab5fSopenharmony_ci * Unless required by applicable law or agreed to in writing, software
103af6ab5fSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
113af6ab5fSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
123af6ab5fSopenharmony_ci * See the License for the specific language governing permissions and
133af6ab5fSopenharmony_ci * limitations under the License.
143af6ab5fSopenharmony_ci */
153af6ab5fSopenharmony_ci
163af6ab5fSopenharmony_ciinterface J {
173af6ab5fSopenharmony_ci  fn(): void;
183af6ab5fSopenharmony_ci}
193af6ab5fSopenharmony_ci
203af6ab5fSopenharmony_ciinterface I extends J {}
213af6ab5fSopenharmony_ci
223af6ab5fSopenharmony_ciabstract class A implements I {
233af6ab5fSopenharmony_ci  public override fn(): int { return 1; }
243af6ab5fSopenharmony_ci}
253af6ab5fSopenharmony_ci
263af6ab5fSopenharmony_ci/* @@? 23:21 Error TypeError: fn(): int in A cannot override fn(): void in J because overriding return type is not compatible with the other return type.  */
273af6ab5fSopenharmony_ci/* @@? 23:21 Error TypeError: Method fn(): int in A not overriding any method  */
28