author | chegar |
Thu, 17 Oct 2019 20:54:25 +0100 | |
branch | datagramsocketimpl-branch |
changeset 58679 | 9c3209ff7550 |
parent 58678 | 9cf78a70fa4f |
parent 55552 | 9bd13d6dea77 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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package invokeinterface; |
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import java.lang.reflect.Method; |
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import java.lang.reflect.Modifier; |
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public class Checker extends shared.Checker { |
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private Class interfaceClass; |
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public Checker(Class interfaceClass, Class dynamicTargetClass) { |
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super(interfaceClass, dynamicTargetClass); |
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if (staticTargetClass.isInterface()) { |
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this.interfaceClass = staticTargetClass; |
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} else { |
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throw new RuntimeException("Static target class should be an interface."); |
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} |
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} |
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public String check (Class callerClass) { |
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// Check access rights to interface for caller |
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if (!checkAccess(interfaceClass, callerClass)) { |
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return "java.lang.IllegalAccessError"; |
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} |
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// NSME is thrown when interface doesn't declare the method |
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if (getDeclaredMethod(interfaceClass) == null) { |
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return "java.lang.NoSuchMethodError"; |
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} |
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// 9.1.5 Access to Interface Member Names |
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// "All interface members are implicitly public. They are |
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// accessible outside the package where the interface is |
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// declared if the interface is also declared public or |
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// protected, in accordance with the rules of 6.6." |
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// Search for method declaration in the hierarchy |
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Class klass = dynamicTargetClass; |
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while (klass != Object.class) { |
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Method method = getDeclaredMethod(klass); |
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if (method != null) { |
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int modifiers = method.getModifiers(); |
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// Check whether obtained method is public and isn't abstract |
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if ( Modifier.isPublic(modifiers)) { |
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if (Modifier.isAbstract(modifiers)) { |
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return "java.lang.AbstractMethodError"; |
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} else { |
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return String.format("%s.%s", |
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method.getDeclaringClass().getSimpleName(), |
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methodName); |
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} |
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} else { |
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// IAE is thrown when located method isn't PUBLIC |
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// or private. Private methods are skipped when |
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// looking for an interface method. |
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if (!Modifier.isPrivate(modifiers)) { |
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return "java.lang.IllegalAccessError"; |
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} |
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} |
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} |
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klass = klass.getSuperclass(); |
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} |
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// No method declaration is found |
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return "java.lang.AbstractMethodError"; |
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} |
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} |