1 /* 2 * Copyright (C) 2009 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.annotations; 18 19 import java.lang.annotation.ElementType; 20 import java.lang.annotation.Retention; 21 import java.lang.annotation.RetentionPolicy; 22 import java.lang.annotation.Target; 23 24 /** 25 * The presence of this annotation on a method indicates that the method may 26 * <em>not</em> be used with the 27 * <a href="http://code.google.com/webtoolkit/">Google Web Toolkit</a> (GWT), 28 * even though its type is annotated as {@link GwtCompatible} and accessible in 29 * GWT. They can cause GWT compilation errors or simply unexpected exceptions 30 * when used in GWT. 31 * 32 * <p>Note that this annotation should only be applied to methods of types which 33 * are annotated as {@link GwtCompatible}. 34 * 35 * @author Charles Fry 36 */ 37 @Retention(RetentionPolicy.CLASS) 38 @Target(ElementType.METHOD) 39 // @Documented - uncomment when GWT support is official 40 @GwtCompatible 41 public @interface GwtIncompatible { 42 43 /** 44 * Describes why the annotated element is incompatible with GWT. Since this is 45 * generally due to a dependence on a type/method which GWT doesn't support, 46 * it is sufficient to simply reference the unsupported type/method. E.g. 47 * "Class.isInstance". 48 */ value()49 String value(); 50 51 } 52