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.compiler/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 
  39 import com.sun.tools.classfile.*;
  40 import com.sun.tools.javac.api.JavacTaskImpl;
  41 import com.sun.tools.javac.code.ClassFinder.BadClassFile;
  42 import com.sun.tools.javac.code.Symbol;
  43 import com.sun.tools.javac.jvm.Target;
  44 import com.sun.tools.javac.util.Assert;
  45 import com.sun.tools.javac.util.JCDiagnostic;
  46 import java.io.File;
  47 import java.util.Arrays;
  48 import java.util.Objects;
  49 import javax.tools.JavaCompiler;
  50 import javax.tools.ToolProvider;
  51 
  52 public 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 }