"Ungrantable protection domain" exception

Hello,

I'm developing a Blitz JavaSpace Server management module for Netbeans.
Currently, I'm trying to write a piece of code, which would start the JINI
activation system (Phoenix). Normally, this is done by executing the
following command line, which invokes the ServiceStarter's main function:

$JAVA_HOME/bin/java -Djava.security.policy=policy/policy.all -jar
$JINI_HOME/start.jar config/start-phoenix.config

Since I'd like to do this in my code (and ServiceStarter's methods are
private), I've extracted the following lines from main():

File f = InstalledFileLocator.getDefault().locate(PHOENIX_CONFIG_PATH,
null, false);

Configuration config = null;
ServiceDescriptor[] descs = null;

        try {
          config = ConfigurationProvider.getInstance(new
String[] {f.getAbsolutePath()});

          descs = (ServiceDescriptor[])
                        config.getEntry(START_PACKAGE, "serviceDescriptors",
                        ServiceDescriptor[].class, null);

        } catch (ConfigurationException ex) {
            ex.printStackTrace();
        }

        for (int i = 0; i < descs.length; i++)
            {
                Object result = null;
                try {
                    result = descs[i].create(config); // EXCEPTION!!!
                } catch (Exception ex) {
                    ex.printStackTrace();
                }
            }
        }

The problem is that I'm getting an exception when trying to execute the
ServiceDescriptor's create() method:

java.lang.UnsupportedOperationException: ungrantable protection domain
        at
net.jini.security.policy.DynamicPolicyProvider.checkDomain(DynamicPolicyProvider.java:297)
        at
net.jini.security.policy.DynamicPolicyProvider.grant(DynamicPolicyProvider.java:196)
        at
com.sun.jini.start.LoaderSplitPolicyProvider.grant(LoaderSplitPolicyProvider.java:197)
        at
com.sun.jini.start.NonActivatableServiceDescriptor.create(NonActivatableServiceDescriptor.java:606)


This is the fragment of the DynamicPolicyProvider's code where the
exception is being thrown:

    private static void checkDomain(final Class cl) {
 ProtectionDomain pd = (ProtectionDomain)
AccessController.doPrivileged(
     new PrivilegedAction() {
  public Object run() { return cl.getProtectionDomain(); }
     });
 if (pd != sysDomain && pd.getClassLoader() == null) {
     throw new UnsupportedOperationException(
  "ungrantable protection domain");
 }
    }

Clearly, this is some security problem with protection domains. "sysDomain"
is the Object class' protection domain, which indeed isn't equal to "pd" -
the ServiceDesciptor class' domain. I have no idea why this is the case and
how to solve this problem. I'd appreciate any help.

Pawe³ Banasik

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