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