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/*
* Copyright (c) 2007, 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
* @bug 6552961 6558429
* @summary Test privilegedCallable, privilegedCallableUsingCurrentClassLoader
* @run main/othervm PrivilegedCallables
* @author Martin Buchholz
*/
import static java.util.concurrent.Executors.privilegedCallable;
import static java.util.concurrent.Executors.privilegedCallableUsingCurrentClassLoader;
import static java.util.concurrent.Executors.privilegedThreadFactory;
import java.security.AccessControlException;
import java.security.CodeSource;
import java.security.Permission;
import java.security.PermissionCollection;
import java.security.Permissions;
import java.security.ProtectionDomain;
import java.util.Random;
import java.util.concurrent.Callable;
public class PrivilegedCallables {
Callable<Integer> real;
final Callable<Integer> realCaller = new Callable<>() {
public Integer call() throws Exception {
return real.call(); }};
final Random rnd = new Random();
@SuppressWarnings("serial")
final Throwable[] throwables = {
new Exception() {},
new RuntimeException() {},
new Error() {}
};
Throwable randomThrowable() {
return throwables[rnd.nextInt(throwables.length)];
}
void throwThrowable(Throwable t) throws Exception {
if (t instanceof Error) throw (Error) t;
if (t instanceof RuntimeException) throw (RuntimeException) t;
throw (Exception) t;
}
//----------------------------------------------------------------
// A Policy class designed to make permissions fiddling very easy.
//----------------------------------------------------------------
static class Policy extends java.security.Policy {
private Permissions perms;
public void setPermissions(Permission...permissions) {
perms = new Permissions();
for (Permission permission : permissions)
perms.add(permission);
}
public Policy() { setPermissions(/* Nothing */); }
public PermissionCollection getPermissions(CodeSource cs) {
return perms;
}
public PermissionCollection getPermissions(ProtectionDomain pd) {
return perms;
}
public boolean implies(ProtectionDomain pd, Permission p) {
return perms.implies(p);
}
public void refresh() {}
}
void test(String[] args) {
testPrivileged();
final Policy policy = new Policy();
Policy.setPolicy(policy);
policy.setPermissions(new RuntimePermission("getClassLoader"),
new RuntimePermission("setContextClassLoader"));
System.setSecurityManager(new SecurityManager());
testPrivileged();
policy.setPermissions(/* Nothing */);
THROWS(AccessControlException.class,
new F() {void f(){ privilegedCallableUsingCurrentClassLoader(realCaller); }},
new F() {void f(){ privilegedThreadFactory(); }});
policy.setPermissions(new RuntimePermission("setSecurityManager"));
System.setSecurityManager(null);
}
void testPrivileged() {
try { test(privilegedCallable(realCaller)); }
catch (Throwable t) { unexpected(t); }
try { test(privilegedCallableUsingCurrentClassLoader(realCaller)); }
catch (Throwable t) { unexpected(t); }
try { privilegedThreadFactory(); }
catch (Throwable t) { unexpected(t); }
}
void test(final Callable<Integer> c) throws Throwable {
for (int i = 0; i < 20; i++)
if (rnd.nextBoolean()) {
final Throwable t = randomThrowable();
real = new Callable<>() {
public Integer call() throws Exception {
throwThrowable(t);
return null; }};
try {
c.call();
fail("Expected exception not thrown");
} catch (Throwable tt) { check(t == tt); }
} else {
final int n = rnd.nextInt();
real = new Callable<>() {
public Integer call() { return n; }};
equal(c.call(), n);
}
}
//--------------------- Infrastructure ---------------------------
volatile int passed = 0, failed = 0;
void pass() {passed++;}
void fail() {failed++; Thread.dumpStack();}
void fail(String msg) {System.err.println(msg); fail();}
void unexpected(Throwable t) {failed++; t.printStackTrace();}
void check(boolean cond) {if (cond) pass(); else fail();}
void equal(Object x, Object y) {
if (x == null ? y == null : x.equals(y)) pass();
else fail(x + " not equal to " + y);}
public static void main(String[] args) throws Throwable {
new PrivilegedCallables().instanceMain(args);}
void instanceMain(String[] args) throws Throwable {
try {test(args);} catch (Throwable t) {unexpected(t);}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
abstract class F {abstract void f() throws Throwable;}
void THROWS(Class<? extends Throwable> k, F... fs) {
for (F f : fs)
try {f.f(); fail("Expected " + k.getName() + " not thrown");}
catch (Throwable t) {
if (k.isAssignableFrom(t.getClass())) pass();
else unexpected(t);}}
}
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