| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.cassandra.utils; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| |
| public class ReflectionUtils |
| { |
| private ReflectionUtils() |
| { |
| |
| } |
| |
| public static Field getModifiersField() throws NoSuchFieldException |
| { |
| // below code works before Java 12 |
| try |
| { |
| return Field.class.getDeclaredField("modifiers"); |
| } |
| catch (NoSuchFieldException e) |
| { |
| // this is mitigation for JDK 17 (https://bugs.openjdk.org/browse/JDK-8210522) |
| try |
| { |
| Method getDeclaredFields0 = Class.class.getDeclaredMethod("getDeclaredFields0", boolean.class); |
| getDeclaredFields0.setAccessible(true); |
| Field[] fields = (Field[]) getDeclaredFields0.invoke(Field.class, false); |
| for (Field field : fields) |
| { |
| if ("modifiers".equals(field.getName())) |
| { |
| return field; |
| } |
| } |
| } |
| catch (ReflectiveOperationException ex) |
| { |
| e.addSuppressed(ex); |
| } |
| throw e; |
| } |
| } |
| } |