| /* |
| * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6449781 6930508 |
| * @summary Test that reported names of anonymous classes are non-null. |
| * @author Joseph D. Darcy |
| * @library /tools/javac/lib |
| * @modules jdk.compiler |
| * @build JavacTestingAbstractProcessor TestAnonSourceNames |
| * @compile -processor TestAnonSourceNames TestAnonClassNames.java |
| * @run main TestAnonClassNames |
| */ |
| |
| /* |
| * This test operates in phases to test retrieving the qualified name |
| * of anonymous classes from type elements modeling the anonymous |
| * class. The type elements are generated using both source files and |
| * class files as the basis of constructing the elements. |
| * |
| * Source files will be tested by the @compile line which runs |
| * TestAnonSourceNames as an annotation processor over this file. |
| * |
| * Class files are tested by the @run command on this type. This |
| * class gets the names of classes with different nesting kinds, |
| * including anonymous classes, and then invokes the compiler with an |
| * annotation processor having the class files names as inputs. The |
| * compiler is invoked via the javax.tools mechanism. |
| */ |
| |
| import java.lang.annotation.*; |
| import javax.lang.model.element.*; |
| import javax.annotation.processing.*; |
| import javax.lang.model.SourceVersion; |
| import javax.lang.model.element.*; |
| import javax.lang.model.util.*; |
| import javax.tools.*; |
| import java.util.*; |
| |
| import static java.lang.annotation.RetentionPolicy.*; |
| import static javax.lang.model.element.NestingKind.*; |
| import static javax.lang.model.util.ElementFilter.*; |
| import static javax.tools.Diagnostic.Kind.*; |
| import static javax.tools.StandardLocation.*; |
| |
| @Nesting(TOP_LEVEL) |
| public class TestAnonClassNames { |
| @Nesting(MEMBER) |
| static class MemberClass1{} |
| |
| @Nesting(MEMBER) |
| class MemberClass2{} |
| |
| @Nesting(MEMBER) |
| class Win$$AtVegas { } // Class with funny name. |
| |
| public static void main(String... argv) { |
| @Nesting(LOCAL) |
| class LocalClass{}; |
| |
| Object o = new @Nesting(ANONYMOUS) Object() { // An anonymous annotated class |
| public String toString() { |
| return "I have no name!"; |
| } |
| }; |
| |
| Class<?>[] classes = { |
| MemberClass1.class, |
| MemberClass2.class, |
| LocalClass.class, |
| Win$$AtVegas.class, |
| o.getClass(), |
| TestAnonClassNames.class, |
| }; |
| |
| List<String> names = new ArrayList<String>(); |
| for(Class<?> clazz : classes) { |
| String name = clazz.getName(); |
| Nesting annotation = clazz.getAnnotation(Nesting.class); |
| NestingKind expected = annotation == null ? |
| NestingKind.ANONYMOUS : annotation.value(); |
| System.out.format("%s is %s%n", name, expected); |
| testClassName(name); |
| names.add(name); |
| } |
| |
| // test all names together |
| testClassNames(names); |
| |
| if (errors > 0) |
| throw new RuntimeException(errors + " errors occurred"); |
| } |
| |
| /** |
| * Perform annotation processing on the class file name and verify |
| * the existence of different flavors of class names when the |
| * input classes are modeled as elements. |
| */ |
| static void testClassName(String className) { |
| testClassNames(Arrays.asList(className)); |
| } |
| |
| /** |
| * Perform annotation processing on a list of class file names and verify |
| * the existence of different flavors of class names when the |
| * input classes are modeled as elements. |
| */ |
| static void testClassNames(List<String> classNames) { |
| System.out.println("test: " + classNames); |
| |
| List<String> options = new ArrayList<String>(); |
| options.add("-proc:only"); |
| options.add("-classpath"); |
| options.add(System.getProperty("test.classes")); |
| |
| JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler(); |
| JavaCompiler.CompilationTask compileTask = |
| javaCompiler.getTask(null, // Output |
| null, // File manager |
| null, // Diagnostics |
| options, |
| classNames, |
| null); // Sources |
| List<Processor> processors = new ArrayList<Processor>(); |
| processors.add(new ClassNameProber()); |
| compileTask.setProcessors(processors); |
| Boolean goodResult = compileTask.call(); |
| if (!goodResult) { |
| error("Errors found during compile."); |
| } |
| } |
| |
| static int errors = 0; |
| |
| static void error(String msg) { |
| System.out.println("Error: " + msg); |
| errors++; |
| } |
| } |
| |
| @Target({ElementType.TYPE, ElementType.TYPE_USE}) |
| @Retention(RUNTIME) |
| @interface Nesting { |
| NestingKind value(); |
| } |
| |
| /** |
| * Probe at the various kinds of names of a type element. |
| */ |
| class ClassNameProber extends JavacTestingAbstractProcessor { |
| public ClassNameProber(){super();} |
| |
| private boolean classesFound=false; |
| |
| public boolean process(Set<? extends TypeElement> annotations, |
| RoundEnvironment roundEnv) { |
| if (!roundEnv.processingOver()) { |
| for(TypeElement typeElt : typesIn(roundEnv.getRootElements())) { |
| classesFound = true; |
| |
| // Verify different names are non-null; an NPE will |
| // result in failed compile status being reported. |
| NestingKind nestingKind = typeElt.getNestingKind(); |
| System.out.printf("\tSimple name: ''%s''\tQualified Name: ''%s''\tKind ''%s''\tNesting ''%s''%n", |
| typeElt.getSimpleName().toString(), |
| typeElt.getQualifiedName().toString(), |
| typeElt.getKind().toString(), |
| nestingKind.toString()); |
| |
| Nesting annotation = typeElt.getAnnotation(Nesting.class); |
| NestingKind expected = annotation == null ? |
| NestingKind.ANONYMOUS : annotation.value(); |
| |
| if (expected != nestingKind) { |
| throw new RuntimeException("Mismatch of expected and reported nesting kind."); |
| } |
| } |
| |
| } |
| |
| if (!classesFound) { |
| throw new RuntimeException("Error: no classes processed."); |
| } |
| return true; |
| } |
| } |