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From "George Harley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-35) Harmony ignores java.security.policy property
Date Thu, 19 Jan 2006 22:03:42 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-35?page=all ]

George Harley updated HARMONY-35:
---------------------------------

    Attachment: HARMONY-35-patch.txt

The attached patch seems to fix it for me on Win XP. Not tested on Linux. 

Best regards, 
George

> Harmony ignores java.security.policy property
> ---------------------------------------------
>
>          Key: HARMONY-35
>          URL: http://issues.apache.org/jira/browse/HARMONY-35
>      Project: Harmony
>         Type: Bug
>   Components: Classlib
>  Environment: Win32 and Linux
>     Reporter: George Harley
>  Attachments: HARMONY-35-patch.txt
>
> Here is the complete contents of a Java security policy file called "mysecurity.policy"
that can be used to specify additional permissions to a JRE...
> ---------snip----------
> grant {
>     // so we can remove the security manager
>     permission java.lang.RuntimePermission "setSecurityManager";
> };
> ---------snip----------
> If its location is passed in the Java launch arguments with the java.security.policy
property as below then the permissions are added to the default set of permissions that the
JRE runs with ...
> -Djava.security.policy=c:\path\to\mysecurity.policy
> If the following unit test is run against a sandbox build of the classlibs under SVN
trunk on the IBM Apache Harmony VME with the java.security.policy set (as above) so that the
"setSecurityManager" runtime permission is added, then a pass should result. It doesn't. 
> -----------snip--------------
> package foo;
> import java.security.AccessControlException;
> import junit.framework.TestCase;
> public class SecurityPolicyTest extends TestCase {
>     public void testPermissions() {
>         try {
>             System.out
>                     .println("Trying to set the security manager the first time...");
>             System.setSecurityManager(new SecurityManager());
>             System.out.println("Trying to set the security manager to null...");
>             System.setSecurityManager(null);
>             assertEquals(null, System.getSecurityManager());
>         } catch (AccessControlException e) {
>             fail("Caught AccessControlException : " + e.getMessage());
>         }
>     }
> }
> -----------snip--------------
> The failure occurs because an AccessControlException is thrown on the second call to
System.setSecurityManager() when the test tries to pass a null argument.
> The problem is that after the first call to System.setSecurityManager() has installed
a security manager, there is no runtime permission to enable the security manager to be set
again. This is despite the fact that when running the test we set the java.security.policy
property to point to a file that grants this very permission !
> The reason for this buggy behaviour is the incomplete implementation of com.ibm.oti.util.DefaultPolicy
in the luni component. The readPolicy() method needs work to actually fulfill its contract
as laid out in the Javadoc comments. 
> George

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