BoundsTest.java revision 3294:9adfb22ff08f
1/* 2 * Copyright (c) 2012, 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 6499673 27 * @library /tools/javac/lib 28 * @modules jdk.compiler 29 * @build JavacTestingAbstractProcessor BoundsTest 30 * @run main BoundsTest 31 * @summary Assertion check for TypeVariable.getUpperBound() fails 32 */ 33 34import com.sun.source.util.*; 35import javax.annotation.processing.*; 36import javax.lang.model.type.*; 37import javax.lang.model.util.ElementFilter; 38import javax.lang.model.element.*; 39import javax.tools.*; 40import java.util.*; 41import java.io.*; 42 43public class BoundsTest { 44 45 private int errors = 0; 46 private static final String Intersection_name = "IntersectionTest.java"; 47 private static final String Intersection_contents = 48 "import java.util.List;\n" + 49 "import java.io.Serializable;\t" + 50 "public class IntersectionTest<S extends List & Serializable> {\n" + 51 " void method(S s) { }\n" + 52 "}"; 53 private static final String[] Intersection_bounds = { 54 "java.util.List", 55 "java.io.Serializable" 56 }; 57 private static final String[] Intersection_supers = { 58 "java.util.List", 59 "java.io.Serializable" 60 }; 61 62 private static final String Single_name = "SingleTest.java"; 63 private static final String Single_contents = 64 "import java.util.List;\n" + 65 "public class SingleTest<S extends List> {\n" + 66 " void method(S s) { }\n" + 67 "}"; 68 private static final String[] Single_bounds = { 69 "java.util.List", 70 }; 71 private static final String[] Single_supers = { 72 "java.lang.Object", 73 "java.util.Collection" 74 }; 75 76 private static final String NoBounds_name = "NoBoundsTest.java"; 77 private static final String NoBounds_contents = 78 "public class NoBoundsTest<S> {\n" + 79 " void method(S s) { }\n" + 80 "}"; 81 private static final String[] NoBounds_bounds = { 82 "java.lang.Object", 83 }; 84 private static final String[] NoBounds_supers = {}; 85 86 private HashSet<String> expected_bounds; 87 private HashSet<String> expected_supers; 88 89 private static final File classesdir = new File("intersectionproperties"); 90 private static final JavaCompiler comp = 91 ToolProvider.getSystemJavaCompiler(); 92 private static final StandardJavaFileManager fm = 93 comp.getStandardFileManager(null, null, null); 94 95 public void runOne(final String Test_name, final String Test_contents, 96 final String[] Test_bounds, final String[] Test_supers) 97 throws IOException { 98 System.err.println("Testing " + Test_name); 99 expected_bounds = new HashSet<>(Arrays.asList(Test_bounds)); 100 expected_supers = new HashSet<>(Arrays.asList(Test_supers)); 101 final Iterable<? extends JavaFileObject> files = 102 fm.getJavaFileObjectsFromFiles(Collections.singleton(writeFile(classesdir, Test_name, Test_contents))); 103 final JavacTask ct = 104 (JavacTask)comp.getTask(null, fm, null, null, null, files); 105 ct.setProcessors(Collections.singleton(new TestProcessor())); 106 107 if (!ct.call()) { 108 System.err.println("Compilation unexpectedly failed"); 109 errors++; 110 } 111 } 112 113 public void run() throws IOException { 114 try { 115 runOne(Intersection_name, Intersection_contents, 116 Intersection_bounds, Intersection_supers); 117 runOne(Single_name, Single_contents, 118 Single_bounds, Single_supers); 119 runOne(NoBounds_name, NoBounds_contents, 120 NoBounds_bounds, NoBounds_supers); 121 122 if (0 != errors) 123 throw new RuntimeException(errors + " errors occurred"); 124 } finally { 125 fm.close(); 126 } 127 } 128 129 public static void main(String... args) throws IOException { 130 new BoundsTest().run(); 131 } 132 133 private static File writeFile(File dir, String path, String body) 134 throws IOException { 135 File f = new File(dir, path); 136 f.getParentFile().mkdirs(); 137 try (FileWriter out = new FileWriter(f)) { 138 out.write(body); 139 } 140 return f; 141 } 142 143 private class TestProcessor extends JavacTestingAbstractProcessor { 144 145 private Set<? extends Element> rootElements; 146 147 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { 148 rootElements = roundEnv.getRootElements(); 149 if (!rootElements.isEmpty()) { 150 performCheck(); 151 } 152 return true; 153 } 154 155 private void performCheck() { 156 TypeElement typeElement = (TypeElement) rootElements.iterator().next(); 157 ExecutableElement method = ElementFilter.methodsIn(typeElement.getEnclosedElements()).get(0); 158 TypeVariable typeVariable = (TypeVariable) method.getParameters().get(0).asType(); 159 160 final TypeMirror upperBound = typeVariable.getUpperBound(); 161 162 TypeParameterElement typeParameterElement = ((TypeParameterElement) typeVariable.asElement()); 163 final List<? extends TypeMirror> bounds = typeParameterElement.getBounds(); 164 final List<? extends TypeMirror> supers = processingEnv.getTypeUtils().directSupertypes(upperBound); 165 166 final HashSet<String> actual_bounds = new HashSet<>(); 167 final HashSet<String> actual_supers = new HashSet<>(); 168 169 for(TypeMirror ty : bounds) { 170 actual_bounds.add(((TypeElement)((DeclaredType)ty).asElement()).getQualifiedName().toString()); 171 } 172 173 for(TypeMirror ty : supers) { 174 actual_supers.add(((TypeElement)((DeclaredType)ty).asElement()).getQualifiedName().toString()); 175 } 176 177 if (!expected_bounds.equals(actual_bounds)) { 178 System.err.println("Mismatched expected and actual bounds."); 179 System.err.println("Expected:"); 180 for(CharSequence tm : expected_bounds) 181 System.err.println(" " + tm); 182 System.err.println("Actual:"); 183 for(CharSequence tm : actual_bounds) 184 System.err.println(" " + tm); 185 errors++; 186 } 187 188 if (!expected_supers.equals(actual_supers)) { 189 System.err.println("Mismatched expected and actual supers."); 190 System.err.println("Expected:"); 191 for(CharSequence tm : expected_supers) 192 System.err.println(" " + tm); 193 System.err.println("Actual:"); 194 for(CharSequence tm : actual_supers) 195 System.err.println(" " + tm); 196 errors++; 197 } 198 } 199 } 200 201} 202