/*
* Copyright 1999-2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/* @test
* @bug 4227192
* @summary This is a test of the restrictions on the parameters that may
* be passed to the Proxy.getProxyClass method.
* @author Peter Jones
*
* @build ClassRestrictions
* @run main ClassRestrictions
*/
import java.lang.reflect.Proxy;
import java.net.URLClassLoader;
public class ClassRestrictions {
public interface Bar {
int foo();
}
public interface Baz {
long foo();
}
interface Bashful {
void foo();
}
public static void main(String[] args) {
System.err.println(
"\nTest of restrictions on parameters to Proxy.getProxyClass\n");
try {
ClassLoader loader = ClassLoader.getSystemClassLoader();
Class[] interfaces;
Class proxyClass;
/*
* All of the Class objects in the interfaces array must represent
* interfaces, not classes or primitive types.
*/
try {
interfaces = new Class[] { Object.class };
proxyClass = Proxy.getProxyClass(loader, interfaces);
throw new RuntimeException(
"proxy class created with java.lang.Object as interface");
} catch (IllegalArgumentException e) {
e.printStackTrace();
System.err.println();
// assume exception is for intended failure
}
try {
interfaces = new Class[] { Integer.TYPE };
proxyClass = Proxy.getProxyClass(loader, interfaces);
throw new RuntimeException(
"proxy class created with int.class as interface");
} catch (IllegalArgumentException e) {
e.printStackTrace();
System.err.println();
// assume exception is for intended failure
}
/*
* No two elements in the interfaces array may refer to identical
* Class objects.
*/
try {
interfaces = new Class[] { Bar.class, Bar.class };
proxyClass = Proxy.getProxyClass(loader, interfaces);
throw new RuntimeException(
"proxy class created with repeated interfaces");
} catch (IllegalArgumentException e) {
e.printStackTrace();
System.err.println();
// assume exception is for intended failure
}
/*
* All of the interfaces types must be visible by name though the
* specified class loader.
*/
ClassLoader altLoader = new URLClassLoader(
((URLClassLoader) loader).getURLs(), null);
Class altBarClass;
altBarClass = Class.forName(Bar.class.getName(), false, altLoader);
try {
interfaces = new Class[] { altBarClass };
proxyClass = Proxy.getProxyClass(loader, interfaces);
throw new RuntimeException(
"proxy class created with interface " +
"not visible to class loader");
} catch (IllegalArgumentException e) {
e.printStackTrace();
System.err.println();
// assume exception is for intended failure
}
/*
* All non-public interfaces must be in the same package.
*/
Class nonPublic1 = Bashful.class;
Class nonPublic2 = null;
String[] nonPublicInterfaces = new String[] {
"java.awt.Conditional",
"java.util.zip.ZipConstants",
"javax.swing.GraphicsWrapper",
"javax.swing.JPopupMenu$Popup",
"javax.swing.JTable$Resizable2",
"javax.swing.JTable$Resizable3",
"javax.swing.ToolTipManager$Popup",
"sun.audio.Format",
"sun.audio.HaePlayable",
"sun.tools.agent.StepConstants",
};
for (int i = 0; i < nonPublicInterfaces.length; i++) {
try {
nonPublic2 = Class.forName(nonPublicInterfaces[i]);
break;
} catch (ClassNotFoundException e) {
}
}
if (nonPublic2 == null) {
throw new RuntimeException(
"no second non-public interface found for test");
}
try {
interfaces = new Class[] { nonPublic1, nonPublic2 };
proxyClass = Proxy.getProxyClass(loader, interfaces);
throw new RuntimeException(
"proxy class created with two non-public interfaces " +
"in different packages");
} catch (IllegalArgumentException e) {
e.printStackTrace();
System.err.println();
// assume exception is for intended failure
}
/*
* No two interfaces may each have a method with the same name and
* parameter signature but different return type.
*/
try {
interfaces = new Class[] { Bar.class, Baz.class };
proxyClass = Proxy.getProxyClass(loader, interfaces);
throw new RuntimeException(
"proxy class created with conflicting methods");
} catch (IllegalArgumentException e) {
e.printStackTrace();
System.err.println();
// assume exception is for intended failure
}
/*
* All components of this test have passed.
*/
System.err.println("\nTEST PASSED");
} catch (Exception e) {
System.err.println("\nTEST FAILED:");
e.printStackTrace();
throw new RuntimeException("TEST FAILED: " + e.toString());
}
}
}