Reproducer for PR1145, ClassCircularityError sometimes occurs when custom policy set.

1 files changed, 85 insertions, 0 deletions

diff --git a/tests/reproducers/signed/CustomPolicy/srcs/CustomPolicy.java b/tests/reproducers/signed/CustomPolicy/srcs/CustomPolicy.java
new file mode 100644
index 0000000..c6ac337
--- /dev/null
+++ b/tests/reproducers/signed/CustomPolicy/srcs/CustomPolicy.java
@@ -0,0 +1,85 @@
+/* CustomPolicy.java
+Copyright (C) 2012 Red Hat, Inc.
+
+This file is part of IcedTea.
+
+IcedTea is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 2.
+
+IcedTea 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with IcedTea; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version.
+ */
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.security.AccessControlContext;
+import java.security.AccessController;
+import java.security.cert.Certificate;
+import java.security.AccessControlException;
+import java.security.CodeSource;
+import java.security.PermissionCollection;
+import java.security.Permissions;
+import java.security.Policy;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import java.security.ProtectionDomain;
+
+public class CustomPolicy {
+    public static AccessControlContext strictAccessControlContext() throws MalformedURLException {
+        CodeSource code = new CodeSource(new URL("http://localhost"), (Certificate[]) null);
+        ProtectionDomain pd = new ProtectionDomain(code, new Permissions(),
+                null, null);
+        return new AccessControlContext(new ProtectionDomain[] { pd });
+    }
+
+    public static void main(String[] args) throws PrivilegedActionException, MalformedURLException {
+        final Policy defaultPolicy = Policy.getPolicy();
+        Policy.setPolicy(new Policy() {
+            public PermissionCollection getPermissions(CodeSource codesource) {
+                System.out.println("Loading System here may cause problems.");
+                return defaultPolicy.getPermissions(codesource);
+            }
+
+            public void refresh() {
+                defaultPolicy.refresh();
+            }
+        });
+
+        try {
+            AccessController.doPrivileged(new PrivilegedExceptionAction<Void>() {
+                public Void run() {
+                    Thread.currentThread().setContextClassLoader(null);
+                    return null;
+                }
+            }, strictAccessControlContext());
+        } catch (AccessControlException ace) {
+            System.out.println("AccessControlException: Cannot set context class loader");
+        }
+        System.out.println("Program Executed Correctly");
+    }
+}