2362N/A * Copyright (c) 1999, 2006, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * {@code InvocationHandler} is the interface implemented by 0N/A * the <i>invocation handler</i> of a proxy instance. 0N/A * <p>Each proxy instance has an associated invocation handler. 0N/A * When a method is invoked on a proxy instance, the method 0N/A * invocation is encoded and dispatched to the {@code invoke} 0N/A * method of its invocation handler. 0N/A * @author Peter Jones 0N/A * Processes a method invocation on a proxy instance and returns 0N/A * the result. This method will be invoked on an invocation handler 0N/A * when a method is invoked on a proxy instance that it is 0N/A * @param proxy the proxy instance that the method was invoked on 0N/A * @param method the {@code Method} instance corresponding to 0N/A * the interface method invoked on the proxy instance. The declaring 0N/A * class of the {@code Method} object will be the interface that 0N/A * the method was declared in, which may be a superinterface of the 0N/A * proxy interface that the proxy class inherits the method through. 0N/A * @param args an array of objects containing the values of the 0N/A * arguments passed in the method invocation on the proxy instance, 0N/A * or {@code null} if interface method takes no arguments. 0N/A * Arguments of primitive types are wrapped in instances of the 0N/A * appropriate primitive wrapper class, such as 0N/A * {@code java.lang.Integer} or {@code java.lang.Boolean}. 0N/A * @return the value to return from the method invocation on the 0N/A * proxy instance. If the declared return type of the interface 0N/A * method is a primitive type, then the value returned by 0N/A * this method must be an instance of the corresponding primitive 0N/A * wrapper class; otherwise, it must be a type assignable to the 0N/A * declared return type. If the value returned by this method is 0N/A * {@code null} and the interface method's return type is 0N/A * primitive, then a {@code NullPointerException} will be 0N/A * thrown by the method invocation on the proxy instance. If the 0N/A * value returned by this method is otherwise not compatible with 0N/A * the interface method's declared return type as described above, 0N/A * a {@code ClassCastException} will be thrown by the method 0N/A * invocation on the proxy instance. 0N/A * @throws Throwable the exception to throw from the method 0N/A * invocation on the proxy instance. The exception's type must be 0N/A * assignable either to any of the exception types declared in the 0N/A * {@code throws} clause of the interface method or to the 0N/A * unchecked exception types {@code java.lang.RuntimeException} 0N/A * or {@code java.lang.Error}. If a checked exception is 0N/A * thrown by this method that is not assignable to any of the 0N/A * exception types declared in the {@code throws} clause of 0N/A * the interface method, then an 0N/A * {@link UndeclaredThrowableException} containing the 0N/A * exception that was thrown by this method will be thrown by the 0N/A * method invocation on the proxy instance. 0N/A * @see UndeclaredThrowableException