1 /* 2 * Copyright (c) 2006, 2015, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 6397298 6400986 6425592 6449798 6453386 6508401 6498938 6911854 8030049 8038080 27 * @summary Tests that getElementsAnnotatedWith works properly. 28 * @author Joseph D. Darcy 29 * @library /tools/javac/lib 30 * @modules java.compiler 31 * jdk.compiler 32 * @build JavacTestingAbstractProcessor 33 * @compile TestElementsAnnotatedWith.java 34 * @compile InheritedAnnotation.java 35 * @compile TpAnno.java 36 * @compile Anno.java 37 * @compile -processor TestElementsAnnotatedWith -proc:only SurfaceAnnotations.java 38 * @compile -processor TestElementsAnnotatedWith -proc:only BuriedAnnotations.java 39 * @compile -processor TestElementsAnnotatedWith -proc:only Part1.java Part2.java 40 * @compile -processor TestElementsAnnotatedWith -proc:only C2.java 41 * @compile -processor TestElementsAnnotatedWith -proc:only Foo.java 42 * @compile -processor TestElementsAnnotatedWith -proc:only TypeParameterAnnotations.java 43 * @compile -processor TestElementsAnnotatedWith -proc:only ParameterAnnotations.java 44 * @compile/fail/ref=ErroneousAnnotations.out -processor TestElementsAnnotatedWith -proc:only -XDrawDiagnostics ErroneousAnnotations.java 45 * @compile Foo.java 46 * @compile/process -processor TestElementsAnnotatedWith -proc:only Foo 47 */ 48 49 import java.lang.annotation.Annotation; 50 import java.util.Collections; 51 import java.util.Set; 52 import java.util.HashSet; 53 import java.util.Arrays; 54 import javax.annotation.processing.*; 55 import javax.lang.model.element.*; 56 import static javax.lang.model.util.ElementFilter.*; 57 58 /** 59 * This processor verifies that the information returned by 60 * getElementsAnnotatedWith is consistent with the expected results 61 * stored in an AnnotatedElementInfo annotation. 62 */ 63 @AnnotatedElementInfo(annotationName="java.lang.SuppressWarnings", expectedSize=0, names={}) 64 public class TestElementsAnnotatedWith extends JavacTestingAbstractProcessor { 65 66 public boolean process(Set<? extends TypeElement> annotations, 67 RoundEnvironment roundEnvironment) { 68 TypeElement annotatedElementInfoElement = 69 elements.getTypeElement("AnnotatedElementInfo"); 70 Set<? extends Element> resultsMeta = Collections.emptySet(); 71 Set<? extends Element> resultsBase = Collections.emptySet(); 72 73 if (!roundEnvironment.processingOver()) { 74 testNonAnnotations(roundEnvironment); 75 76 // Verify AnnotatedElementInfo is present on the first 77 // specified type. 78 79 TypeElement firstType = typesIn(roundEnvironment.getRootElements()).iterator().next(); 80 81 AnnotatedElementInfo annotatedElementInfo = firstType.getAnnotation(AnnotatedElementInfo.class); 82 83 boolean failed = false; 84 85 if (annotatedElementInfo == null) 86 throw new IllegalArgumentException("Missing AnnotatedElementInfo annotation on " + 87 firstType); 88 else { 89 // Verify that the annotation information is as 90 // expected. 91 92 Set<String> expectedNames = new HashSet<String>(Arrays.asList(annotatedElementInfo.names())); 93 94 resultsMeta = 95 roundEnvironment. 96 getElementsAnnotatedWith(elements.getTypeElement(annotatedElementInfo.annotationName())); 97 98 if (!resultsMeta.isEmpty()) 99 System.err.println("Results: " + resultsMeta); 100 101 if (resultsMeta.size() != annotatedElementInfo.expectedSize()) { 102 failed = true; 103 System.err.printf("Bad number of elements; expected %d, got %d%n", 104 annotatedElementInfo.expectedSize(), resultsMeta.size()); 105 } else { 106 for(Element element : resultsMeta) { 107 String simpleName = element.getSimpleName().toString(); 108 if (!expectedNames.contains(simpleName) ) { 109 failed = true; 110 System.err.println("Name ``" + simpleName + "'' not expected."); 111 } 112 } 113 } 114 } 115 116 resultsBase = computeResultsBase(roundEnvironment, annotatedElementInfo.annotationName()); 117 118 if (!resultsMeta.equals(resultsBase)) { 119 failed = true; 120 System.err.println("Base and Meta sets unequal;\n meta: " + resultsMeta + 121 "\nbase: " + resultsBase); 122 } 123 124 if (failed) { 125 System.err.println("AnnotatedElementInfo: " + annotatedElementInfo); 126 throw new RuntimeException(); 127 } 128 } else { 129 // If processing is over without an error, the specified 130 // elements should be empty so an empty set should be returned. 131 resultsMeta = roundEnvironment.getElementsAnnotatedWith(annotatedElementInfoElement); 132 resultsBase = roundEnvironment.getElementsAnnotatedWith(AnnotatedElementInfo.class); 133 if (!resultsMeta.isEmpty()) 134 throw new RuntimeException("Nonempty resultsMeta: " + resultsMeta); 135 if (!resultsBase.isEmpty()) 136 throw new RuntimeException("Nonempty resultsBase: " + resultsBase); 137 138 } 139 return true; 140 } 141 142 private Set<? extends Element> computeResultsBase(RoundEnvironment roundEnvironment, String name) { 143 try { 144 return roundEnvironment. 145 getElementsAnnotatedWith(Class.forName(name).asSubclass(Annotation.class)); 146 } catch(ClassNotFoundException cnfe) { 147 throw new RuntimeException(cnfe); 148 } 149 } 150 151 /** 152 * Verify non-annotation types result in 153 * IllegalArgumentExceptions. 154 */ 155 private void testNonAnnotations(RoundEnvironment roundEnvironment) { 156 try { 157 Set<? extends Element> elements = roundEnvironment.getElementsAnnotatedWith((Class)Object.class ); 158 throw new RuntimeException("Illegal argument exception not thrown"); 159 } catch(IllegalArgumentException iae) {} 160 161 try { 162 Set<? extends Element> elements = 163 roundEnvironment.getElementsAnnotatedWith(processingEnv. 164 getElementUtils(). 165 getTypeElement("java.lang.Object") ); 166 throw new RuntimeException("Illegal argument exception not thrown"); 167 } catch(IllegalArgumentException iae) {} 168 } 169 }