jdk8-mips64-public/langtools: test/tools/javac/processing/model/testgetallmembers/Main.java@9a66ca7c79fa

     1 /*

     2  * Copyright 2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    24 /**

    25  * @test

    26  * @bug     6374357 6308351

    27  * @summary PackageElement.getEnclosedElements() throws ClassReader$BadClassFileException

    28  * @author  Peter von der Ah\u00e9

    29  * @run main/othervm -Xmx256m Main

    30  */

    32 import java.io.File;

    33 import java.util.*;

    34 import javax.lang.model.SourceVersion;

    35 import javax.lang.model.element.Element;

    36 import javax.lang.model.element.ElementKind;

    37 import javax.lang.model.element.PackageElement;

    38 import javax.lang.model.element.TypeElement;

    39 import javax.lang.model.util.Elements;

    40 import javax.tools.*;

    41 import com.sun.source.util.JavacTask;

    43 import static javax.tools.StandardLocation.CLASS_PATH;

    44 import static javax.tools.StandardLocation.PLATFORM_CLASS_PATH;

    45 import static javax.tools.JavaFileObject.Kind.CLASS;

    48 public class Main {

    50     public static PackageElement getPackage(TypeElement type) {

    51         Element owner = type;

    52         while (owner.getKind() != ElementKind.PACKAGE)

    53             owner = owner.getEnclosingElement();

    54         return (PackageElement)owner;

    55     }

    57     static int progress = 0;

    58     static JavaCompiler tool;

    59     static JavacTask javac;

    60     static Elements elements;

    62     public static void main(String[] args) throws Exception {

    64         JavaCompiler tool = ToolProvider.getSystemJavaCompiler();

    65         StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);

    66         fm.setLocation(CLASS_PATH, Collections.<File>emptyList());

    67         JavacTask javac = (JavacTask)tool.getTask(null, fm, null, null, null, null);

    68         Elements elements = javac.getElements();

    70         final Set<String> packages = new LinkedHashSet<String>();

    72         int nestedClasses = 0;

    73         int classes = 0;

    75         for (JavaFileObject file : fm.list(PLATFORM_CLASS_PATH, "", EnumSet.of(CLASS), true)) {

    76             String type = fm.inferBinaryName(PLATFORM_CLASS_PATH, file);

    77             if (type.endsWith("package-info"))

    78                 continue;

    79             try {

    80                 TypeElement elem = elements.getTypeElement(type);

    81                 if (elem == null && type.indexOf('$') > 0) {

    82                     nestedClasses++;

    83                     type = null;

    84                     continue;

    85                 }

    86                 classes++;

    87                 packages.add(getPackage(elem).getQualifiedName().toString());

    88                 elements.getTypeElement(type).getKind(); // force completion

    89                 type = null;

    90             } finally {

    91                 if (type != null)

    92                     System.err.println("Looking at " + type);

    93             }

    94         }

    95         javac = null;

    96         elements = null;

    98         javac = (JavacTask)tool.getTask(null, null, null, null, null, null);

    99         elements = javac.getElements();

   101         for (String name : packages) {

   102             PackageElement pe = elements.getPackageElement(name);

   103             for (Element e : pe.getEnclosedElements()) {

   104                 e.getSimpleName().getClass();

   105             }

   106         }

   107         /*

   108          * A few sanity checks based on current values:

   109          *

   110          * packages: 775, classes: 12429 + 5917

   111          *

   112          * As the platform evolves the numbers are likely to grow

   113          * monotonically but in case somebody gets a clever idea for

   114          * limiting the number of packages exposed, this number might

   115          * drop.  So we test low values.

   116          */

   117         System.out.format("packages: %s, classes: %s + %s%n",

   118                           packages.size(), classes, nestedClasses);

   119         if (classes < 9000)

   120             throw new AssertionError("Too few classes in PLATFORM_CLASS_PATH ;-)");

   121         if (packages.size() < 545)

   122             throw new AssertionError("Too few packages in PLATFORM_CLASS_PATH ;-)");

   123         if (nestedClasses < 3000)

   124             throw new AssertionError("Too few nested classes in PLATFORM_CLASS_PATH ;-)");

   125     }

   126 }

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