/*
* Copyright ( c ) 2005 , 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
* @ bug 6256734
* @ summary ProtectionDomain could optimize implies by first checking for
* AllPermission in internal collection
* @ run main / othervm - Djava . security . manager = allow AllPerm
*/
import java.io.*;
import java.net.*;
import java.security.*;
import java.lang.reflect.*;
public class AllPerm {
private static final Class [] ARGS = new Class [] { };
private static ProtectionDomain allPermClassDomain;
public static void main(String[]args) throws Exception {
// create custom class loader that assigns AllPermission to
// classes it loads
File file = new File(System.getProperty("test.src" ), "AllPerm.jar" );
URL[] urls = new URL[] { file.toURL() };
ClassLoader parent = Thread .currentThread().getContextClassLoader();
AllPermLoader loader = new AllPermLoader(urls, parent);
// load a class from AllPerm.jar using custom loader
Object o = loader.loadClass("AllPermClass" ).newInstance();
Method doCheck = o.getClass().getMethod("doCheck" , ARGS);
allPermClassDomain = o.getClass().getProtectionDomain();
// set a custom Policy and set the SecurityManager
Policy.setPolicy(new AllPermPolicy());
System.setSecurityManager(new SecurityManager());
// invoke method on loaded class, which will perform a
// security-sensitive operation. custom policy will check
// to see if it is called (it should not be called)
doCheck.invoke(o, ARGS);
}
/**
* this class loader assigns AllPermission to classes that it loads
*/
private static class AllPermLoader extends URLClassLoader {
public AllPermLoader(URL[] urls, ClassLoader parent) {
super (urls, parent);
}
protected PermissionCollection getPermissions(CodeSource codesource) {
Permissions perms = new Permissions();
perms.add(new AllPermission());
return perms;
}
}
/**
* this policy should not be called if domain is allPermClassDomain
*/
private static class AllPermPolicy extends Policy {
public boolean implies(ProtectionDomain domain, Permission permission) {
if (domain == allPermClassDomain) {
throw new SecurityException
("Unexpected call into AllPermPolicy" );
}
return true ;
}
}
}
/**
* here is the source code for AllPermClass inside AllPerm . jar
*/
/*
public class AllPermClass {
public void doCheck ( ) {
System . getProperty ( " user . name " ) ;
}
}
*/
Messung V0.5 in Prozent C=94 H=92 G=92
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-06-10)
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