diff -r fd16c54261b3 -r 90ce3da70b43 jdk/src/share/classes/com/sun/jmx/snmp/IPAcl/Host.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/com/sun/jmx/snmp/IPAcl/Host.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,181 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+
+package com.sun.jmx.snmp.IPAcl;
+
+
+
+// java import
+//
+import java.io.Serializable;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Hashtable;
+import java.util.logging.Level;
+import java.util.Vector;
+import java.security.acl.NotOwnerException;
+
+import static com.sun.jmx.defaults.JmxProperties.SNMP_LOGGER;
+
+/**
+ * The class defines an abstract representation of a host.
+ *
+ */
+abstract class Host extends SimpleNode implements Serializable {
+
+    public Host(int id) {
+        super(id);
+    }
+
+    public Host(Parser p, int id) {
+        super(p, id);
+    }
+
+    protected abstract PrincipalImpl createAssociatedPrincipal()
+        throws UnknownHostException;
+
+    protected abstract String getHname();
+
+    public void buildAclEntries(PrincipalImpl owner, AclImpl acl) {
+        // Create a principal
+        //
+        PrincipalImpl p=null;
+        try {
+            p = createAssociatedPrincipal();
+        } catch(UnknownHostException e) {
+            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {
+                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),
+                        "buildAclEntries",
+                        "Cannot create ACL entry; got exception", e);
+            }
+            throw new IllegalArgumentException("Cannot create ACL entry for " + e.getMessage());
+        }
+
+        // Create an AclEntry
+        //
+        AclEntryImpl entry= null;
+        try {
+            entry = new AclEntryImpl(p);
+            // Add permission
+            //
+            registerPermission(entry);
+            acl.addEntry(owner, entry);
+        } catch(UnknownHostException e) {
+            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {
+                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),
+                        "buildAclEntries",
+                        "Cannot create ACL entry; got exception", e);
+            }
+            return;
+        } catch(NotOwnerException a) {
+            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {
+                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),
+                        "buildAclEntries",
+                        "Cannot create ACL entry; got exception", a);
+            }
+            return;
+        }
+    }
+
+    private void registerPermission(AclEntryImpl entry) {
+        JDMHost host= (JDMHost) jjtGetParent();
+        JDMManagers manager= (JDMManagers) host.jjtGetParent();
+        JDMAclItem acl= (JDMAclItem) manager.jjtGetParent();
+        JDMAccess access= acl.getAccess();
+        access.putPermission(entry);
+        JDMCommunities comm= acl.getCommunities();
+        comm.buildCommunities(entry);
+    }
+
+    public void buildTrapEntries(Hashtable<InetAddress, Vector<String>> dest) {
+
+        JDMHostTrap host= (JDMHostTrap) jjtGetParent();
+        JDMTrapInterestedHost hosts= (JDMTrapInterestedHost) host.jjtGetParent();
+        JDMTrapItem trap = (JDMTrapItem) hosts.jjtGetParent();
+        JDMTrapCommunity community = trap.getCommunity();
+        String comm = community.getCommunity();
+
+        InetAddress add = null;
+        try {
+            add = java.net.InetAddress.getByName(getHname());
+        } catch(UnknownHostException e) {
+            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {
+                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),
+                        "buildTrapEntries",
+                        "Cannot create TRAP entry; got exception", e);
+            }
+            return;
+        }
+
+        Vector<String> list = null;
+        if (dest.containsKey(add)){
+            list = dest.get(add);
+            if (!list.contains(comm)){
+                list.addElement(comm);
+            }
+        } else {
+            list = new Vector<String>();
+            list.addElement(comm);
+            dest.put(add,list);
+        }
+    }
+
+    public void buildInformEntries(Hashtable<InetAddress, Vector<String>> dest) {
+
+        JDMHostInform host= (JDMHostInform) jjtGetParent();
+        JDMInformInterestedHost hosts= (JDMInformInterestedHost) host.jjtGetParent();
+        JDMInformItem inform = (JDMInformItem) hosts.jjtGetParent();
+        JDMInformCommunity community = inform.getCommunity();
+        String comm = community.getCommunity();
+
+        InetAddress add = null;
+        try {
+            add = java.net.InetAddress.getByName(getHname());
+        } catch(UnknownHostException e) {
+            if (SNMP_LOGGER.isLoggable(Level.FINEST)) {
+                SNMP_LOGGER.logp(Level.FINEST, Host.class.getName(),
+                        "buildTrapEntries",
+                        "Cannot create INFORM entry; got exception", e);
+            }
+            return;
+        }
+
+        Vector<String> list = null;
+        if (dest.containsKey(add)){
+            list = dest.get(add);
+            if (!list.contains(comm)){
+                list.addElement(comm);
+            }
+        } else {
+            list = new Vector<String>();
+            list.addElement(comm);
+            dest.put(add,list);
+        }
+    }
+
+
+
+}