1 /*
   2  * Copyright (c) 2006, 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     6345812
  27  * @summary Validate argument kinds in Types utilities
  28  * @author  Scott Seligman
  29  * @build   TypesBadArg
  30  * @compile -processor TypesBadArg -proc:only TypesBadArg.java
  31  */
  32 
  33 import java.util.Set;
  34 import javax.annotation.processing.*;
  35 import javax.lang.model.element.*;
  36 import javax.lang.model.type.*;
  37 import javax.lang.model.util.*;
  38 
  39 @SupportedAnnotationTypes("*")
  40 public class TypesBadArg extends AbstractProcessor {
  41 
  42     boolean success = true;
  43 
  44     public void init(ProcessingEnvironment penv) {
  45         super.init(penv);
  46     }
  47 
  48     public boolean process(Set<? extends TypeElement> tes,
  49                            RoundEnvironment round) {
  50         if (round.processingOver()) return true;
  51 
  52         final Elements elements = processingEnv.getElementUtils();
  53         final Types types = processingEnv.getTypeUtils();
  54 
  55         final TypeMirror javaLang =
  56             elements.getPackageElement("java.lang").asType();
  57 
  58         makeBadCall(new Runnable() {
  59             public void run() {
  60                 types.isSubtype(javaLang, javaLang);
  61             }
  62         });
  63         makeBadCall(new Runnable() {
  64             public void run() {
  65                 types.isAssignable(javaLang, javaLang);
  66             }
  67         });
  68         makeBadCall(new Runnable() {
  69             public void run() {
  70                 types.contains(javaLang, javaLang);
  71             }
  72         });
  73         makeBadCall(new Runnable() {
  74             public void run() {
  75                 types.directSupertypes(javaLang);
  76             }
  77         });
  78         makeBadCall(new Runnable() {
  79             public void run() {
  80                 types.erasure(javaLang);
  81             }
  82         });
  83         makeBadCall(new Runnable() {
  84             public void run() {
  85                 types.capture(javaLang);
  86             }
  87         });
  88         makeBadCall(new Runnable() {
  89             public void run() {
  90                 types.unboxedType(javaLang);
  91             }
  92         });
  93         makeBadCall(new Runnable() {
  94             public void run() {
  95                 types.unboxedType(types.getNoType(TypeKind.VOID));
  96             }
  97         });
  98         if (! success)
  99             throw new AssertionError("Some test(s) failed.");
 100         return true;
 101     }
 102 
 103     private void makeBadCall(Runnable runnable) {
 104         try {
 105             runnable.run();
 106             System.out.println("Failure: IllegalArgumentException expected");
 107             success = false;
 108         } catch (IllegalArgumentException e) {
 109             System.out.println("IllegalArgumentException as expected");
 110         }
 111     }
 112 }