jdk8-mips64-public/langtools: test/tools/javac/T8028504/DontGenerateLVTForGNoneOpTest.java@0b6cc4ea670f

     1 /*

     2  * Copyright (c) 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 /*

    25  * @test

    26  * @bug 8028504

    27  * @summary javac generates LocalVariableTable even with -g:none

    28  * @compile -g:none DontGenerateLVTForGNoneOpTest.java

    29  * @run main DontGenerateLVTForGNoneOpTest

    30  */

    32 import java.io.File;

    33 import java.lang.annotation.ElementType;

    34 import java.lang.annotation.Target;

    35 import java.nio.file.Paths;

    37 import com.sun.tools.classfile.Attribute;

    38 import com.sun.tools.classfile.ClassFile;

    39 import com.sun.tools.classfile.Code_attribute;

    40 import com.sun.tools.classfile.Method;

    42 public class DontGenerateLVTForGNoneOpTest {

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

    45         new DontGenerateLVTForGNoneOpTest().run();

    46     }

    48     void run() throws Exception {

    49         checkClassFile(new File(Paths.get(System.getProperty("test.classes"),

    50                 this.getClass().getName() + ".class").toUri()));

    51     }

    53     void checkClassFile(final File cfile) throws Exception {

    54         ClassFile classFile = ClassFile.read(cfile);

    55         for (Method method : classFile.methods) {

    56             Code_attribute code = (Code_attribute)method.attributes.get(Attribute.Code);

    57             if (code != null) {

    58                 if (code.attributes.get(Attribute.LocalVariableTable) != null) {

    59                     throw new AssertionError("LVT shouldn't be generated for g:none");

    60                 }

    61             }

    62         }

    63     }

    65     public void bar() {

    66         try {

    67             System.out.println();

    68         } catch(@TA Exception e) {

    69         } catch(Throwable t) {}

    70     }

    72     @Target(ElementType.TYPE_USE)

    73     @interface TA {}

    74 }

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