Merge into master from pull request #304:
modified java_gen to support list of IPv4 and IPv6 addresses (https://github.com/floodlight/loxigen/pull/304)
diff --git a/java_gen/java_type.py b/java_gen/java_type.py
index 12d6260..abd9e5b 100644
--- a/java_gen/java_type.py
+++ b/java_gen/java_type.py
@@ -360,10 +360,20 @@
         .op(read="IPv4Address.read4Bytes(bb)", \
             write="$name.write4Bytes(bb)",
             default='IPv4Address.NONE')
+ipv4_list =  JType('List<IPv4Address>') \
+        .op(read='ChannelUtils.readList(bb, $length, IPv4Address.READER)',
+            write='ChannelUtils.writeList(bb, $name)',
+            default='ImmutableList.<IPv4Address>of()',
+            funnel="FunnelUtils.putList($name, sink)")
 ipv6 = JType("IPv6Address") \
         .op(read="IPv6Address.read16Bytes(bb)", \
             write="$name.write16Bytes(bb)",
             default='IPv6Address.NONE')
+ipv6_list =  JType('List<IPv46ddress>') \
+        .op(read='ChannelUtils.readList(bb, $length, IPv6Address.READER)',
+            write='ChannelUtils.writeList(bb, $name)',
+            default='ImmutableList.<IPv6Address>of()',
+            funnel="FunnelUtils.putList($name, sink)")
 packetin_reason = gen_enum_jtype("OFPacketInReason")
 transport_port = JType("TransportPort")\
         .op(read="TransportPort.read2Bytes(bb)",
@@ -531,6 +541,8 @@
         'list(of_uint32_t)' : u32_list,
         'list(of_uint8_t)' : u8_list,
         'list(of_oxm_t)' : oxm_list,
+        'list(of_ipv4_t)' : ipv4_list,
+        'list(of_ipv6_t)' : ipv6_list,
         'of_octets_t' : octets,
         'of_match_t': of_match,
         'of_fm_cmd_t': flow_mod_cmd,
diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv4Address.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv4Address.java
index 3a1b15e..eb37a20 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv4Address.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv4Address.java
@@ -12,14 +12,16 @@
 import com.google.common.hash.PrimitiveSink;
 import com.google.common.primitives.UnsignedInts;
 
-
+import org.projectfloodlight.openflow.protocol.Writeable;
+import org.projectfloodlight.openflow.protocol.OFMessageReader;
+import org.projectfloodlight.openflow.exceptions.OFParseError;
 
 /**
  * Wrapper around an IPv4Address address
  *
  * @author Andreas Wundsam <andreas.wundsam@bigswitch.com>
  */
-public class IPv4Address extends IPAddress<IPv4Address> {
+public class IPv4Address extends IPAddress<IPv4Address> implements Writeable {
     static final int LENGTH = 4;
     private final int rawValue;
 
@@ -38,6 +40,15 @@
         this.rawValue = rawValue;
     }
 
+    public final static Reader READER = new Reader();
+
+    private static class Reader implements OFMessageReader<IPv4Address> {
+        @Override
+        public IPv4Address readFrom(ChannelBuffer bb) throws OFParseError {
+            return new IPv4Address(bb.readInt());
+        }
+    }
+
     @Override
     public IPVersion getIpVersion() {
         return IPVersion.IPv4;
@@ -345,4 +356,8 @@
         sink.putInt(rawValue);
     }
 
+    @Override
+    public void writeTo(ChannelBuffer bb) {
+        bb.writeInt(rawValue);
+    }
 }
diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6Address.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6Address.java
index 471d0fb..a787ca9 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6Address.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6Address.java
@@ -8,19 +8,22 @@
 import javax.annotation.Nonnull;
 
 import org.jboss.netty.buffer.ChannelBuffer;
-import org.projectfloodlight.openflow.exceptions.OFParseError;
 
 import com.google.common.base.Preconditions;
 import com.google.common.hash.PrimitiveSink;
 import com.google.common.primitives.Longs;
 
+import org.projectfloodlight.openflow.protocol.Writeable;
+import org.projectfloodlight.openflow.protocol.OFMessageReader;
+import org.projectfloodlight.openflow.exceptions.OFParseError;
+
 /**
  * IPv6 address object. Instance controlled, immutable. Internal representation:
  * two 64 bit longs (not that you'd have to know).
  *
  * @author Andreas Wundsam <andreas.wundsam@teleteach.de>
  */
-public class IPv6Address extends IPAddress<IPv6Address> {
+public class IPv6Address extends IPAddress<IPv6Address> implements Writeable {
     static final int LENGTH = 16;
     private final long raw1;
     private final long raw2;
@@ -43,6 +46,15 @@
         this.raw2 = raw2;
     }
 
+    public final static Reader READER = new Reader();
+
+    private static class Reader implements OFMessageReader<IPv6Address> {
+        @Override
+        public IPv6Address readFrom(ChannelBuffer bb) throws OFParseError {
+            return new IPv6Address(bb.readLong(), bb.readLong());
+        }
+    }
+
     @Override
     public IPVersion getIpVersion() {
         return IPVersion.IPv6;
@@ -538,4 +550,10 @@
         sink.putLong(raw1);
         sink.putLong(raw2);
     }
+
+    @Override
+    public void writeTo(ChannelBuffer bb) {
+        bb.writeLong(raw1);
+        bb.writeLong(raw2);
+    }
 }