jdk8-mips64-public/langtools: test/tools/javac/annotations/typeAnnotations/classfile/DeadCode.java@f427043f8c65

     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 6917130 8006775

    34  * @summary test that optimized away annotations are not emited to classfile

    35  */

    37 public class DeadCode extends ClassfileTestHelper {

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

    39         new DeadCode().run();

    40     }

    42     public void run() throws Exception {

    43         expected_tinvisibles = 1;

    44         expected_tvisibles = 0;

    46         ClassFile cf = getClassFile("DeadCode$Test.class");

    47         test(cf);

    48         for (Field f : cf.fields) {

    49             test(cf, f);

    50         }

    51         for (Method m: cf.methods) {

    52             test(cf, m);

    53         }

    55         countAnnotations();

    57         if (errors > 0)

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

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

    60     }

    62     /*********************** Test class *************************/

    63     static class Test {

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

    65         @interface A {}

    67         void test() {

    68             List<? extends @A Object> o = null;

    69             o.toString();

    71             @A String m;

    72             if (false) {

    73                 @A String a;

    74                 @A String b = "m";

    75                 b.toString();

    76                 List<? extends @A Object> c = null;

    77                 c.toString();

    78             }

    79         }

    80     }

    82 }

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