1 /* 2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.internal.vm.annotation; 27 28 import java.lang.annotation.*; 29 30 /** 31 * A method or constructor may be annotated as "hidden" to hint it is desirable 32 * to omit it from stack traces. 33 * 34 * @implNote 35 * This annotation only takes effect for methods or constructors of classes 36 * loaded by the boot loader. Annotations on methods or constructors of classes 37 * loaded outside of the boot loader are ignored. 38 * 39 * <p>HotSpot JVM provides diagnostic option {@code -XX:+ShowHiddenFrames} to 40 * always show "hidden" frames. 41 */ 42 @Target({ElementType.METHOD, ElementType.CONSTRUCTOR}) 43 @Retention(RetentionPolicy.RUNTIME) 44 public @interface Hidden { 45 } 46