Examples of java.security.UnresolvedPermission

java.security.UnresolvedPermission
The UnresolvedPermission class is used to hold Permissions that were "unresolved" when the Policy was initialized. An unresolved permission is one whose actual Permission class does not yet exist at the time the Policy is initialized (see below).
The policy for a Java runtime (specifying which permissions are available for code from various principals) is represented by a Policy object. Whenever a Policy is initialized or refreshed, Permission objects of appropriate classes are created for all permissions allowed by the Policy.
Many permission class types referenced by the policy configuration are ones that exist locally (i.e., ones that can be found on CLASSPATH). Objects for such permissions can be instantiated during Policy initialization. For example, it is always possible to instantiate a java.io.FilePermission, since the FilePermission class is found on the CLASSPATH.
Other permission classes may not yet exist during Policy initialization. For example, a referenced permission class may be in a JAR file that will later be loaded. For each such class, an UnresolvedPermission is instantiated. Thus, an UnresolvedPermission is essentially a "placeholder" containing information about the permission.
Later, when code calls AccessController.checkPermission on a permission of a type that was previously unresolved, but whose class has since been loaded, previously-unresolved permissions of that type are "resolved". That is, for each such UnresolvedPermission, a new object of the appropriate class type is instantiated, based on the information in the UnresolvedPermission.
To instantiate the new class, UnresolvedPermission assumes the class provides a zero, one, and/or two-argument constructor. The zero-argument constructor would be used to instantiate a permission without a name and without actions. A one-arg constructor is assumed to take a String name as input, and a two-arg constructor is assumed to take a String name and String actions as input. UnresolvedPermission may invoke a constructor with a null name and/or actions. If an appropriate permission constructor is not available, the UnresolvedPermission is ignored and the relevant permission will not be granted to executing code.
The newly created permission object replaces the UnresolvedPermission, which is removed.
Note that the getName method for an UnresolvedPermission returns the type (class name) for the underlying permission that has not been resolved. @see java.security.Permission @see java.security.Permissions @see java.security.PermissionCollection @see java.security.Policy @version 1.31 05/11/17 @author Roland Schemers

                .getInstance("X.509");
        Certificate certificate = certificateFactory
                .generateCertificate(new ByteArrayInputStream(TestUtils
                        .getEncodedX509Certificate()));


        UnresolvedPermission unresolvedPermission = new UnresolvedPermission(
                "java.security.SecurityPermission", "a.b.c", "action",
                new Certificate[] { certificate });
        SerializationTest.verifySelf(unresolvedPermission);
        SerializationTest.verifyGolden(this, unresolvedPermission);
    }

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    /**
     * Return array holding 3 collections: empty, single- and multi-element.
     */
    protected Object[] getData() {
        Permission up1 = new UnresolvedPermission("131234", null, null, null);
        Permission up2 = new UnresolvedPermission("131234", "ui23rjh", null,
                null);
        Permission up3 = new UnresolvedPermission("KUJKHVKJgyuygjhb", "xcv456",
                "26r ytf", new java.security.cert.Certificate[0]);
        PermissionCollection pc1 = up1.newPermissionCollection();
        PermissionCollection pc2 = up1.newPermissionCollection();
        pc2.add(up3);
        PermissionCollection pc3 = up1.newPermissionCollection();

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        for (Iterator i = grantedPermissions.listIterator(); i.hasNext();) {
            Permissions.Permission p = (Permissions.Permission) i.next();
            if (p.getClassName() == null) {
                throw new BuildException("Granted permission " + p + " does not contain a class.");
            } else {
                java.security.Permission perm =  new UnresolvedPermission(p.getClassName(),p.getName(),p.getActions(),null);
                granted.add(perm);
            }
        }
        // Add base set of permissions
        granted.add(new java.net.SocketPermission("localhost:1024-", "listen"));

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      }
      Class cl;
      try {
    cl = Class.forName(pi.type);
      } catch (ClassNotFoundException ex) {
    l.add(new UnresolvedPermission(
        pi.type, pi.name, pi.actions, null));
    continue;
      }
      if (!Permission.class.isAssignableFrom(cl)) {
    throw new IllegalArgumentException(

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                        certs = null;


                    // only add if we had no signer or we had a
                    // a signer and found the keys for it.
                    if (certs != null || pe.signedBy == null) {
                            Permission perm = new UnresolvedPermission(
                                             pe.permission,
                                             pe.name,
                                             pe.action,
                                             certs);
                            entry.add(perm);

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        f = new File(System.getProperty("test.src", "."), SIGNER2);
        fis = new FileInputStream(f);
        Certificate signer2 = fac.generateCertificate(fis);
        signercerts[2] = signer2;


        UnresolvedPermission up = new UnresolvedPermission
                        ("type", "name", "actions", signercerts);
        if (!up.getUnresolvedType().equals("type") ||
            !up.getUnresolvedName().equals("name") ||
            !up.getUnresolvedActions().equals("actions")) {
            throw new SecurityException("Test 1 Failed");
        }


        Certificate[] certs = up.getUnresolvedCerts();
        if (certs == null || certs.length != 2) {
            throw new SecurityException("Test 2 Failed");
        }


        boolean foundSigner1 = false;

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                        pe.actions);
            }
        }
        catch (ClassNotFoundException cnfe) {}
        //maybe properly signed class will be loaded later
        return new UnresolvedPermission(pe.klass, pe.name, pe.actions, signers);
    }

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                        pe.actions);
            }
        }
        catch (ClassNotFoundException cnfe) {}
        //maybe properly signed class will be loaded later
        return new UnresolvedPermission(pe.klass, pe.name, pe.actions, signers);
    }

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    private Permission createUnresolvedPermission( final String type,
                                                   final String target,
                                                   final String actions,
                                                   final Certificate[] signers )
    {
        return new UnresolvedPermission( type, target, actions, signers );
    }

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                        pe.actions);
            }
        }
        catch (ClassNotFoundException cnfe) {}
        //maybe properly signed class will be loaded later
        return new UnresolvedPermission(pe.klass, pe.name, pe.actions, signers);
    }

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