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 6449798 6399404 8173776
  27  * @summary Test basic workings of PackageElement
  28  * @author  Joseph D. Darcy
  29  * @library /tools/javac/lib
  30  * @modules java.compiler
  31  *          jdk.compiler
  32  * @build   JavacTestingAbstractProcessor TestPackageElement
  33  * @compile -processor TestPackageElement -proc:only             TestPackageElement.java
  34  * @compile -processor TestPackageElement -proc:only --release 8 TestPackageElement.java
  35  */
  36 
  37 import java.util.Objects;
  38 import java.util.Set;
  39 import javax.annotation.processing.*;
  40 import javax.lang.model.SourceVersion;
  41 import static javax.lang.model.SourceVersion.*;
  42 import javax.lang.model.element.*;
  43 import javax.lang.model.util.*;
  44 import static javax.lang.model.util.ElementFilter.*;
  45 import static javax.tools.Diagnostic.Kind.*;
  46 import static javax.tools.StandardLocation.*;
  47 
  48 /**
  49  * Test basic workings of PackageElement.
  50  */
  51 public class TestPackageElement extends JavacTestingAbstractProcessor {
  52     public boolean process(Set<? extends TypeElement> annotations,
  53                            RoundEnvironment roundEnv) {
  54         if (!roundEnv.processingOver()) {
  55             PackageElement unnamedPkg = eltUtils.getPackageElement("");
  56 
  57             if (!unnamedPkg.getQualifiedName().contentEquals(""))
  58                 throw new RuntimeException("The unnamed package is named!");
  59 
  60             // The next line tests an implementation detail upon which
  61             // some diagnostics depend.
  62             if (!unnamedPkg.toString().equals("unnamed package"))
  63                 throw new RuntimeException(
  64                                 "toString on unnamed package: " + unnamedPkg);
  65 
  66             if (!unnamedPkg.isUnnamed())
  67                 throw new RuntimeException("The isUnnamed method on the unnamed package returned false!");
  68 
  69             PackageElement javaLang = eltUtils.getPackageElement("java.lang");
  70             if (javaLang.isUnnamed())
  71                 throw new RuntimeException("Package java.lang is unnamed!");
  72 
  73             testEnclosingElement(javaLang);
  74         }
  75         return true;
  76     }
  77 
  78     void testEnclosingElement(PackageElement javaLang) {
  79         SourceVersion version = processingEnv.getSourceVersion();
  80         Element enclosing = javaLang.getEnclosingElement();
  81         Element expectedEnclosing =
  82             (version.compareTo(RELEASE_9) < 0) ?  // No modules
  83             null :
  84             eltUtils.getModuleElement("java.base");
  85 
  86         if (!Objects.equals(enclosing, expectedEnclosing))
  87             throw new RuntimeException("Unexpected enclosing element under source version " +
  88                                        version);
  89     }
  90 }