122 lines
3.8 KiB
Java
122 lines
3.8 KiB
Java
/*
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* Copyright (c) 2013, 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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* @test
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* @run main NoName
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* @summary The reflection API should report parameters with no name properly.
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*/
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import java.lang.Class;
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import java.lang.reflect.Method;
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import java.lang.reflect.Parameter;
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import java.lang.reflect.MalformedParametersException;
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import java.lang.ClassLoader;
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import java.lang.ClassNotFoundException;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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public class NoName {
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private static final byte[] NoName_bytes = {
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-54,-2,-70,-66,0,0,0,52,
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0,18,10,0,3,0,15,7,
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0,16,7,0,17,1,0,6,
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60,105,110,105,116,62,1,0,
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3,40,41,86,1,0,4,67,
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111,100,101,1,0,15,76,105,
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110,101,78,117,109,98,101,114,
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84,97,98,108,101,1,0,1,
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109,1,0,5,40,73,73,41,
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86,1,0,16,77,101,116,104,
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111,100,80,97,114,97,109,101,
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116,101,114,115,1,0,0,1,
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0,1,98,1,0,10,83,111,
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117,114,99,101,70,105,108,101,
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1,0,14,69,109,112,116,121,
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78,97,109,101,46,106,97,118,
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97,12,0,4,0,5,1,0,
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9,69,109,112,116,121,78,97,
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109,101,1,0,16,106,97,118,
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97,47,108,97,110,103,47,79,
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98,106,101,99,116,0,33,0,
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2,0,3,0,0,0,0,0,
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2,0,1,0,4,0,5,0,
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1,0,6,0,0,0,29,0,
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1,0,1,0,0,0,5,42,
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-73,0,1,-79,0,0,0,1,
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0,7,0,0,0,6,0,1,
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0,0,0,1,0,1,0,8,
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0,9,0,2,0,6,0,0,
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0,25,0,0,0,3,0,0,
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0,1,-79,0,0,0,1,0,
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7,0,0,0,6,0,1,0,
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0,0,2,
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// Method Parameters attribute here
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0,10,
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// attribute_length
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0,0,0,9,
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// parameter_count
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2,
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// first parameter name
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0,0,
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// first parameter modifiers
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0,0,
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// second parameter name
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0,12,
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// second parameter modifiers
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0,0,
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// end attribute
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0,1,0,13,0,0,0,2,0,14
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};
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private static class InMemoryClassLoader extends ClassLoader {
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public Class<?> defineClass(String name, byte[] b) {
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return defineClass(name, b, 0, b.length);
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}
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};
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private static final InMemoryClassLoader loader = new InMemoryClassLoader();
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private final Class<?> noName;
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private NoName() throws ClassNotFoundException {
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noName = loader.defineClass("EmptyName", NoName_bytes);
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}
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public static void main(String... args)
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throws NoSuchMethodException, IOException, ClassNotFoundException {
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new NoName().run();
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}
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public void run() throws NoSuchMethodException {
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final Class<?> cls = noName;
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System.err.println("Trying " + cls);
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final Method method = cls.getMethod("m", int.class, int.class);
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final Parameter[] params = method.getParameters();
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System.err.println("Name " + params[0].getName());
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System.err.println("Name " + params[1].getName());
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}
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}
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