Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/T8011181/EmptyUTF8ForInnerClassNameTest.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,81 @@
     1.4 +/*
     1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +/*
    1.30 + * @test
    1.31 + * @bug 8011181
    1.32 + * @summary javac, empty UTF8 entry generated for inner class
    1.33 + */
    1.34 +
    1.35 +import java.io.BufferedInputStream;
    1.36 +import java.nio.file.Files;
    1.37 +import java.nio.file.Path;
    1.38 +import java.nio.file.Paths;
    1.39 +
    1.40 +import com.sun.tools.javac.util.Assert;
    1.41 +import com.sun.tools.classfile.ClassFile;
    1.42 +
    1.43 +import static com.sun.tools.classfile.ConstantPool.CONSTANT_Utf8;
    1.44 +import static com.sun.tools.classfile.ConstantPool.CONSTANT_Utf8_info;
    1.45 +import static com.sun.tools.classfile.ConstantPool.CPInfo;
    1.46 +
    1.47 +public class EmptyUTF8ForInnerClassNameTest {
    1.48 +
    1.49 +    public static void main(String[] args) throws Exception {
    1.50 +        new EmptyUTF8ForInnerClassNameTest().run();
    1.51 +    }
    1.52 +
    1.53 +    void run() throws Exception {
    1.54 +        checkClassFile(Paths.get(System.getProperty("test.classes"),
    1.55 +                this.getClass().getName() + "$1.class"));
    1.56 +        checkClassFile(Paths.get(System.getProperty("test.classes"),
    1.57 +                this.getClass().getName() + "$EnumPlusSwitch.class"));
    1.58 +    }
    1.59 +
    1.60 +    void checkClassFile(final Path path) throws Exception {
    1.61 +        ClassFile classFile = ClassFile.read(
    1.62 +                new BufferedInputStream(Files.newInputStream(path)));
    1.63 +        for (CPInfo cpInfo : classFile.constant_pool.entries()) {
    1.64 +            if (cpInfo.getTag() == CONSTANT_Utf8) {
    1.65 +                CONSTANT_Utf8_info utf8Info = (CONSTANT_Utf8_info)cpInfo;
    1.66 +                Assert.check(utf8Info.value.length() > 0,
    1.67 +                        "UTF8 with length 0 found at class " + classFile.getName());
    1.68 +            }
    1.69 +        }
    1.70 +    }
    1.71 +
    1.72 +    static class EnumPlusSwitch {
    1.73 +        enum E {E1}
    1.74 +
    1.75 +        public int m (E e) {
    1.76 +            switch (e) {
    1.77 +                case E1:
    1.78 +                    return 0;
    1.79 +            }
    1.80 +            return -1;
    1.81 +        }
    1.82 +    }
    1.83 +
    1.84 +}