duke@1: /*
duke@1:  * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
duke@1:  * published by the Free Software Foundation.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
duke@1:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@1:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@1:  * have any questions.
duke@1:  */
duke@1: 
duke@1: /**
duke@1:  * @test
darcy@208:  * @bug     6374357 6308351 6707027
duke@1:  * @summary PackageElement.getEnclosedElements() throws ClassReader$BadClassFileException
duke@1:  * @author  Peter von der Ah\u00e9
duke@1:  * @run main/othervm -Xmx256m Main
duke@1:  */
duke@1: 
duke@1: import java.io.File;
duke@1: import java.util.*;
duke@1: import javax.lang.model.SourceVersion;
duke@1: import javax.lang.model.element.Element;
duke@1: import javax.lang.model.element.ElementKind;
duke@1: import javax.lang.model.element.PackageElement;
duke@1: import javax.lang.model.element.TypeElement;
duke@1: import javax.lang.model.util.Elements;
duke@1: import javax.tools.*;
duke@1: import com.sun.source.util.JavacTask;
duke@1: 
duke@1: import static javax.tools.StandardLocation.CLASS_PATH;
duke@1: import static javax.tools.StandardLocation.PLATFORM_CLASS_PATH;
duke@1: import static javax.tools.JavaFileObject.Kind.CLASS;
duke@1: 
duke@1: 
duke@1: public class Main {
duke@1: 
duke@1:     public static PackageElement getPackage(TypeElement type) {
duke@1:         Element owner = type;
duke@1:         while (owner.getKind() != ElementKind.PACKAGE)
duke@1:             owner = owner.getEnclosingElement();
duke@1:         return (PackageElement)owner;
duke@1:     }
duke@1: 
duke@1:     static int progress = 0;
duke@1:     static JavaCompiler tool;
duke@1:     static JavacTask javac;
duke@1:     static Elements elements;
duke@1: 
duke@1:     public static void main(String[] args) throws Exception {
duke@1: 
duke@1:         JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
duke@1:         StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
duke@1:         fm.setLocation(CLASS_PATH, Collections.<File>emptyList());
duke@1:         JavacTask javac = (JavacTask)tool.getTask(null, fm, null, null, null, null);
duke@1:         Elements elements = javac.getElements();
duke@1: 
duke@1:         final Set<String> packages = new LinkedHashSet<String>();
duke@1: 
duke@1:         int nestedClasses = 0;
duke@1:         int classes = 0;
duke@1: 
duke@1:         for (JavaFileObject file : fm.list(PLATFORM_CLASS_PATH, "", EnumSet.of(CLASS), true)) {
duke@1:             String type = fm.inferBinaryName(PLATFORM_CLASS_PATH, file);
duke@1:             if (type.endsWith("package-info"))
duke@1:                 continue;
duke@1:             try {
duke@1:                 TypeElement elem = elements.getTypeElement(type);
duke@1:                 if (elem == null && type.indexOf('$') > 0) {
duke@1:                     nestedClasses++;
duke@1:                     type = null;
duke@1:                     continue;
duke@1:                 }
duke@1:                 classes++;
duke@1:                 packages.add(getPackage(elem).getQualifiedName().toString());
duke@1:                 elements.getTypeElement(type).getKind(); // force completion
duke@1:                 type = null;
duke@1:             } finally {
duke@1:                 if (type != null)
duke@1:                     System.err.println("Looking at " + type);
duke@1:             }
duke@1:         }
duke@1:         javac = null;
duke@1:         elements = null;
duke@1: 
duke@1:         javac = (JavacTask)tool.getTask(null, null, null, null, null, null);
duke@1:         elements = javac.getElements();
duke@1: 
duke@1:         for (String name : packages) {
duke@1:             PackageElement pe = elements.getPackageElement(name);
duke@1:             for (Element e : pe.getEnclosedElements()) {
duke@1:                 e.getSimpleName().getClass();
duke@1:             }
duke@1:         }
duke@1:         /*
duke@1:          * A few sanity checks based on current values:
duke@1:          *
duke@1:          * packages: 775, classes: 12429 + 5917
duke@1:          *
duke@1:          * As the platform evolves the numbers are likely to grow
duke@1:          * monotonically but in case somebody gets a clever idea for
duke@1:          * limiting the number of packages exposed, this number might
duke@1:          * drop.  So we test low values.
duke@1:          */
duke@1:         System.out.format("packages: %s, classes: %s + %s%n",
duke@1:                           packages.size(), classes, nestedClasses);
duke@1:         if (classes < 9000)
duke@1:             throw new AssertionError("Too few classes in PLATFORM_CLASS_PATH ;-)");
darcy@208:         if (packages.size() < 530)
duke@1:             throw new AssertionError("Too few packages in PLATFORM_CLASS_PATH ;-)");
duke@1:         if (nestedClasses < 3000)
duke@1:             throw new AssertionError("Too few nested classes in PLATFORM_CLASS_PATH ;-)");
duke@1:     }
duke@1: }