jdk8-mips64-public/langtools: test/tools/javac/annotations/typeAnnotations/classfile/TypeCasts.java@959103a6100f

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http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

     1 /*

     2  * Copyright (c) 2009, 2013, 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  */

    24 import java.lang.annotation.*;

    25 import java.io.*;

    26 import java.net.URL;

    27 import java.util.List;

    29 import com.sun.tools.classfile.*;

    31 /*

    32  * @test

    33  * @bug 6843077 8006775

    34  * @summary test that typecasts annotation are emitted if only the cast

    35  *          expression is optimized away

    36  */

    38 public class TypeCasts extends ClassfileTestHelper{

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

    40         new TypeCasts().run();

    41     }

    43     public void run() throws Exception {

    44         expected_tinvisibles = 4;

    45         expected_tvisibles = 0;

    47         ClassFile cf = getClassFile("TypeCasts$Test.class");

    48         test(cf);

    49         for (Field f : cf.fields) {

    50             test(cf, f);

    51         }

    52         for (Method m: cf.methods) {

    53             test(cf, m, true);

    54         }

    56         countAnnotations();

    58         if (errors > 0)

    59             throw new Exception(errors + " errors found");

    60         System.out.println("PASSED");

    61     }

    63     /*********************** Test class *************************/

    64     static class Test {

    65         @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})

    66         @interface A {}

    68         void emit() {

    69             Object o = null;

    70             String s = null;

    72             String a0 = (@A String)o;

    73             Object a1 = (@A Object)o;

    75             String b0 = (@A String)s;

    76             Object b1 = (@A Object)s;

    77         }

    79         void alldeadcode() {

    80             Object o = null;

    82             if (false) {

    83                 String a0 = (@A String)o;

    84             }

    85         }

    86     }

    87 }

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