BadClassfile.java revision 2942:08092deced3f 
1/*
2 * Copyright (c) 2013, 2015, 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 8025087
27 * @summary Verify that pre-JDK8 classfiles with default and/or static methods
28 *          are refused correctly.
29 * @modules jdk.jdeps/com.sun.tools.classfile
30 *          jdk.compiler/com.sun.tools.javac.api
31 *          jdk.compiler/com.sun.tools.javac.code
32 *          jdk.compiler/com.sun.tools.javac.jvm
33 *          jdk.compiler/com.sun.tools.javac.main
34 *          jdk.compiler/com.sun.tools.javac.util
35 * @build BadClassfile
36 * @run main BadClassfile
37 */
38
39import com.sun.tools.classfile.*;
40import com.sun.tools.javac.api.JavacTaskImpl;
41import com.sun.tools.javac.code.ClassFinder.BadClassFile;
42import com.sun.tools.javac.code.Symbol;
43import com.sun.tools.javac.jvm.Target;
44import com.sun.tools.javac.util.Assert;
45import com.sun.tools.javac.util.JCDiagnostic;
46import java.io.File;
47import java.util.Arrays;
48import java.util.Objects;
49import javax.tools.JavaCompiler;
50import javax.tools.ToolProvider;
51
52public class BadClassfile {
53    public static void main(String... args) throws Exception {
54        test("BadClassfile$DefaultMethodTest", "compiler.misc.invalid.default.interface");
55        test("BadClassfile$StaticMethodTest", "compiler.misc.invalid.static.interface");
56    }
57
58    private static void test(String classname, String expected) throws Exception {
59        File classfile = new File(System.getProperty("test.classes", "."), classname + ".class");
60        ClassFile cf = ClassFile.read(classfile);
61
62        cf = new ClassFile(cf.magic, Target.JDK1_7.minorVersion,
63                 Target.JDK1_7.majorVersion, cf.constant_pool, cf.access_flags,
64                cf.this_class, cf.super_class, cf.interfaces, cf.fields,
65                cf.methods, cf.attributes);
66
67        new ClassWriter().write(cf, classfile);
68
69        JavaCompiler c = ToolProvider.getSystemJavaCompiler();
70        JavacTaskImpl task = (JavacTaskImpl) c.getTask(null, null, null, Arrays.asList("-classpath", System.getProperty("test.classes", ".")), null, null);
71
72        try {
73            Symbol clazz = com.sun.tools.javac.main.JavaCompiler.instance(task.getContext()).resolveIdent(classname);
74
75            clazz.complete();
76        } catch (BadClassFile f) {
77            JCDiagnostic embeddedDiag = (JCDiagnostic) f.diag.getArgs()[1];
78            assertEquals(expected, embeddedDiag.getCode());
79            assertEquals(Integer.toString(Target.JDK1_7.majorVersion), embeddedDiag.getArgs()[0]);
80            assertEquals(Integer.toString(Target.JDK1_7.minorVersion), embeddedDiag.getArgs()[1]);
81        }
82    }
83
84    private static void assertEquals(Object expected, Object actual) {
85        Assert.check(Objects.equals(expected, actual),
86                     "expected: " + expected + ", but was: " + actual);
87    }
88
89    interface DefaultMethodTest {
90        default void test() { }
91    }
92    interface StaticMethodTest {
93        static void test() { }
94    }
95}
96