Examples of java.security.ProtectionDomain.implies()

java.security.ProtectionDomain.implies()
Check and see if this ProtectionDomain implies the permissions expressed in the Permission object.
The set of permissions evaluated is a function of whether the ProtectionDomain was constructed with a static set of permissions or it was bound to a dynamically mapped set of permissions.
If the ProtectionDomain was constructed to a {@link #ProtectionDomain(CodeSource,PermissionCollection) statically bound} PermissionCollection then the permission willonly be checked against the PermissionCollection supplied at construction.
However, if the ProtectionDomain was constructed with the constructor variant which supports {@link #ProtectionDomain(CodeSource,PermissionCollection,ClassLoader,java.security.Principal[]) dynamically binding}permissions, then the permission will be checked against the combination of the PermissionCollection supplied at construction and the current Policy binding.
@param permission the Permission object to check. @return true if "permission" is implicit to this ProtectionDomain.


        
        try {
            if (caller != null) {
                ProtectionDomain pd = this.getCallerProtDomain(caller);
                pd.implies(p);
            } else
                AccessController.checkPermission(p);
            
        } catch (SecurityException e) {

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        if (LOG.isLoggable(Level.FINE)) {
            LOG.fine("Protection domain code src= " + pd.getCodeSource());
        }


        if (!pd.implies(p)) {
            
            if (LOG.isLoggable(Level.FINE)) {
                LOG.fine("permission check failed for " + injectee + ", to get perm " + p + ", for candidate "
                        + candidate);
            }

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      SecurityManager sm = System.getSecurityManager();
      if (sm != null) {
    ProtectionDomain pd =
        new ProtectionDomain(codeSource, null, this, null);


    if (!pd.implies(downloadPermission)) {
        throw new SecurityException(
      "CodeSource not permitted to define class: " +
      codeSource);
    }
      }

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        pd = new ProtectionDomain(emptyCS, null, null, prins);
        domains.put(new WeakKey(client, queue), pd);
    }
      }
  }
  boolean ok = pd.implies(permission);
  // XXX what about logging
  if (!ok) {
      throw new AccessControlException("access denied " + permission);
  }
    }

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      pd = new ProtectionDomain(cs, null, null, null);
       logger.log(Level.FINEST, 
          "Checking protection domain: {0}", pd);
      
      // Check if current domain allows desired permission
      if(!pd.implies(perm)) {
          SecurityException se =  new SecurityException(
        "ProtectionDomain " + pd
        + " does not have required permission: " + perm);
                logger.throwing(ActivateWrapper.class.getName(), 
              "checkPolicyPermission", se);

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        pd = new ProtectionDomain(emptyCS, null, null, prins);
        domains.put(new WeakKey(client, queue), pd);
    }
      }
  }
  boolean ok = pd.implies(permission);
  // XXX what about logging
  if (!ok) {
      throw new AccessControlException("access denied " + permission);
  }
    }

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    synchronized (domains) {
        domains.put(subject, pd);
    }
      }
  }
  if (!pd.implies(permission)) {
      throw new AccessControlException("access denied " + permission);
  }
    }
}

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      SecurityManager sm = System.getSecurityManager();
      if (sm != null) {
    ProtectionDomain pd =
        new ProtectionDomain(codeSource, null, this, null);


    if (!pd.implies(downloadPermission)) {
        throw new SecurityException(
      "CodeSource not permitted to define class: " +
      codeSource);
    }
      }

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            }
         );
         if( pd != null )
         {
            MBeanTrustPermission p = new MBeanTrustPermission("register");
            if( pd.implies(p) == false )
            {
               String msg = "MBeanTrustPermission(register) not implied by "
                  + "protection domain of mbean class: "+className+", pd: "+pd;
               throw new SecurityException(msg);
            }

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/*      */         }
/*      */       });
/* 1400 */       if (pd != null)
/*      */       {
/* 1402 */         MBeanTrustPermission p = new MBeanTrustPermission("register");
/* 1403 */         if (!pd.implies(p))
/*      */         {
/* 1405 */           String msg = "MBeanTrustPermission(register) not implied by protection domain of mbean class: " + className + ", pd: " + pd;
/*      */ 
/* 1407 */           throw new SecurityException(msg);
/*      */         }

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