/* * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package vm.runtime.defmeth; import nsk.share.test.TestBase; import static jdk.internal.org.objectweb.asm.Opcodes.*; import vm.runtime.defmeth.shared.DefMethTest; import vm.runtime.defmeth.shared.data.*; import vm.runtime.defmeth.shared.data.method.body.EmptyBody; import vm.runtime.defmeth.shared.builder.TestBuilder; /* * Test allowed combinations of access flags on methods in interfaces. * Based on assertions from JVMS8. */ public class AccessibilityFlagsTest extends DefMethTest { public static void main(String[] args) { TestBase.runTest(new AccessibilityFlagsTest(), args); } /* ====================================================================== */ // Methods of interfaces may set any of the flags in Table 4.5 except // ACC_PROTECTED, ACC_FINAL, ACC_NATIVE, and ACC_SYNCHRONIZED (9.4); /** * interface I { protected void m(); } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testProtectedMethodAbstract() { expectClassFormatError( createAbstractMethodInterface(ACC_PROTECTED)); expectClassFormatError( createAbstractMethodInterface(ACC_PROTECTED | ACC_PUBLIC)); expectClassFormatError( createAbstractMethodInterface(ACC_PROTECTED | ACC_PRIVATE)); } /** * interface I { protected void m() default {}; } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testProtectedMethodDefault() { expectClassFormatError( createDefaultMethodInterface(ACC_PROTECTED)); expectClassFormatError( createDefaultMethodInterface(ACC_PROTECTED | ACC_PUBLIC)); expectClassFormatError( createDefaultMethodInterface(ACC_PROTECTED | ACC_PRIVATE)); } /** * interface I { final void m() default {}; } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testFinalMethodDefault() { expectClassFormatError( createDefaultMethodInterface(ACC_FINAL)); expectClassFormatError( createDefaultMethodInterface(ACC_FINAL | ACC_PUBLIC)); expectClassFormatError( createDefaultMethodInterface(ACC_FINAL | ACC_PRIVATE)); } /** * interface I { native void m() default {}; } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testNativeMethodDefault() { expectClassFormatError( createDefaultMethodInterface(ACC_NATIVE)); expectClassFormatError( createDefaultMethodInterface(ACC_NATIVE | ACC_PUBLIC)); expectClassFormatError( createDefaultMethodInterface(ACC_NATIVE | ACC_PRIVATE)); } /** * interface I { synchronized void m(); } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testSynchronizedMethodAbstract() { expectClassFormatError( createAbstractMethodInterface(ACC_SYNCHRONIZED)); expectClassFormatError( createAbstractMethodInterface(ACC_SYNCHRONIZED | ACC_PUBLIC)); expectClassFormatError( createAbstractMethodInterface(ACC_SYNCHRONIZED | ACC_PRIVATE)); } /** * interface I { synchronized void m() default {}; } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testSynchronizedMethodDefault() { expectClassFormatError( createDefaultMethodInterface(ACC_SYNCHRONIZED)); expectClassFormatError( createDefaultMethodInterface(ACC_SYNCHRONIZED | ACC_PUBLIC)); expectClassFormatError( createDefaultMethodInterface(ACC_SYNCHRONIZED | ACC_PRIVATE)); } /* ===================================================================== */ // [methods of interfaces] must have exactly one of the ACC_PUBLIC or ACC_PRIVATE flags set. /** * interface I { private void m() default {}; } * * TEST: ClassLoader.loadClass("I") == succeeds */ public void testPrivateMethodDefault() { loadClass( createDefaultMethodInterface(ACC_PRIVATE)); } /** * interface I { public void m(); } * * TEST: ClassLoader.loadClass("I") == succeeds */ public void testPublicMethodAbstract() { loadClass( createAbstractMethodInterface(ACC_PUBLIC)); } /** * interface I { public void m() default {}; } * */ public void testPublicMethodDefault() { loadClass( createDefaultMethodInterface(ACC_PUBLIC)); } /** * interface I { private public void m(); } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testPrivatePublicMethodAbstract() { expectClassFormatError( createAbstractMethodInterface(ACC_PUBLIC | ACC_PRIVATE)); } /** * interface I { private public void m() default {}; } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testPrivatePublicMethodDefault() { expectClassFormatError( createDefaultMethodInterface(ACC_PUBLIC | ACC_PRIVATE)); } /* ===================================================================== */ // Methods of classes may set any of the flags in Table 4.5 except // ACC_PROTECTED, ACC_FINAL, ACC_NATIVE, and ACC_SYNCHRONIZED (9.4); // they must have exactly one of the ACC_PUBLIC or ACC_PRIVATE flags set. // // The following flags are allowed: // ACC_PUBLIC 0x0001 Declared public; may be accessed from outside its package. // ACC_PRIVATE 0x0002 Declared private; accessible only within the defining class. // ACC_STATIC 0x0008 Declared static. // ACC_BRIDGE 0x0040 A bridge method, generated by the compiler. // ACC_VARARGS 0x0080 Declared with variable number of arguments. // ACC_STRICT 0x0800 Declared strictfp; floating-point mode is FP-strict. // ACC_SYNTHETIC 0x1000 Declared synthetic; not present in the source code. /** * interface I { static void m() default {}; } * * TEST: ClassLoader.loadClass("I") == succeeds */ public void testStaticMethodDefault() { loadClass( createDefaultMethodInterface(ACC_STATIC | ACC_PUBLIC)); loadClass( createDefaultMethodInterface(ACC_STATIC | ACC_PRIVATE)); } /** * interface I { strictfp void m() default {}; } * * TEST: ClassLoader.loadClass("I") == succeeds */ public void testStrictFPMethodDefault() { loadClass( createDefaultMethodInterface(ACC_STRICT | ACC_PUBLIC)); loadClass( createDefaultMethodInterface(ACC_STRICT | ACC_PRIVATE)); } /* =============================================================================== */ // If a specific method of a class or interface has its ACC_ABSTRACT flag set, // it must not have any of its ACC_FINAL, ACC_NATIVE, ACC_PRIVATE, ACC_STATIC, ACC_STRICT, // or ACC_SYNCHRONIZED flags set (8.4.3.1, 8.4.3.3, 8.4.3.4). /** * interface I { final void m(); } * abstract class C { abstract final void m(); } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError * TEST: ClassLoader.loadClass("C") ==> ClassFormatError */ public void testFinalMethodAbstract() { /* interface I */ expectClassFormatError( createAbstractMethodInterface(ACC_FINAL)); expectClassFormatError( createAbstractMethodInterface(ACC_FINAL | ACC_PUBLIC)); /* abstract class C */ expectClassFormatError( createAbstractMethodClass(ACC_FINAL)); } /** * interface I { native void m(); } * interface K { native void m() default {}; } * abstract class C { abstract native m(); } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError * TEST: ClassLoader.loadClass("K") ==> ClassFormatError * TEST: ClassLoader.loadClass("C") ==> ClassFormatError */ public void testNativeMethodAbstract() { /* interface I */ expectClassFormatError( createDefaultMethodInterface(ACC_NATIVE)); expectClassFormatError( createDefaultMethodInterface(ACC_NATIVE | ACC_PUBLIC)); /* interface K */ expectClassFormatError( createAbstractMethodInterface(ACC_NATIVE)); expectClassFormatError( createAbstractMethodInterface(ACC_NATIVE | ACC_PUBLIC)); /* abstract class C */ expectClassFormatError( createAbstractMethodClass(ACC_NATIVE)); } /** * interface I { private void m(); } * abstract class C { abstract private void m(); } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError * TEST: ClassLoader.loadClass("C") ==> ClassFormatError */ public void testPrivateMethodAbstract() { /* interface I */ expectClassFormatError( createAbstractMethodInterface(ACC_PRIVATE)); /* abstract class C */ expectClassFormatError( createAbstractMethodClass(ACC_PRIVATE)); } /** * interface I { static void m(); } * abstract class C { abstract static void m(); } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError * TEST: ClassLoader.loadClass("C") ==> ClassFormatError */ public void testStaticMethodAbstract() { /* interface I */ expectClassFormatError( createAbstractMethodInterface(ACC_STATIC)); expectClassFormatError( createAbstractMethodInterface(ACC_STATIC | ACC_PUBLIC)); /* abstract class C */ expectClassFormatError( createAbstractMethodClass(ACC_STATIC)); } /** * interface I { strictfp void m(); } * abstract class C { abstract strictfp void m(); } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError * TEST: ClassLoader.loadClass("C") ==> ClassFormatError */ public void testStrictFPMethodAbstract() { /* interface I */ expectClassFormatError( createAbstractMethodInterface(ACC_STRICT)); expectClassFormatError( createAbstractMethodInterface(ACC_STRICT | ACC_PUBLIC)); /* abstract class C */ expectClassFormatError( createAbstractMethodClass(ACC_STRICT)); } /* =============================================================================== */ /** * interface I { abstract void m() default {}; } * * TEST: ClassLoader.loadClass("I") ==> ClassFormatError */ public void testAbstractMethodDefault() { expectClassFormatError( createDefaultMethodInterface(ACC_ABSTRACT)); } /* ====================================================================== */ // Helper methods private Interface createAbstractMethodInterface(int acc) { return factory.getBuilder() .intf("I") .abstractMethod("m", "()V").flags(acc) .build() .build(); } private Clazz createAbstractMethodClass(int acc) { return factory.getBuilder() .clazz("I") .abstractMethod("m", "()V").flags(acc) .build() .build(); } private Interface createDefaultMethodInterface(int acc) { return factory.getBuilder() .intf("I") .defaultMethod("m", "()V").flags(acc) .body(new EmptyBody()) .build() .build(); } private void expectException(Clazz clz, Class exc) { TestBuilder b = factory.getBuilder() .register(clz); b.test().loadClass(clz).throws_(exc).done() .run(); } private void loadClass(Clazz clz) { TestBuilder b = factory.getBuilder() .register(clz); b.test().loadClass(clz).ignoreResult().done() .run(); } private void expectClassFormatError(Clazz clz) { expectException(clz, ClassFormatError.class); } }