diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/util/MultiplePktInReasonUtil.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/util/MultiplePktInReasonUtil.java
new file mode 100644
index 0000000..a919f62
--- /dev/null
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/util/MultiplePktInReasonUtil.java
@@ -0,0 +1,46 @@
+package org.projectfloodlight.openflow.util;
+
+import java.util.Set;
+
+import com.google.common.collect.ImmutableSet;
+
+import org.projectfloodlight.openflow.types.U64;
+import org.projectfloodlight.openflow.protocol.OFBsnPktinFlag;
+import org.projectfloodlight.openflow.protocol.OFPacketIn;
+import org.projectfloodlight.openflow.protocol.OFVersion;
+import org.projectfloodlight.openflow.protocol.match.MatchField;
+import org.projectfloodlight.openflow.protocol.match.Match;
+import org.projectfloodlight.openflow.protocol.ver13.OFBsnPktinFlagSerializerVer13;
+import org.projectfloodlight.openflow.types.OFMetadata;
+
+
+public class MultiplePktInReasonUtil {
+    private MultiplePktInReasonUtil() {}
+
+    /**
+     * This function is used in BVS T5/6 to decode the multiple packet in
+     * reasons in Match.MetaData field.
+     * */
+    public static Set<OFBsnPktinFlag> getOFBsnPktinFlags(OFPacketIn pktIn) {
+        if(pktIn.getVersion() != OFVersion.OF_13) {
+            throw new IllegalArgumentException("multiple pkt in reasons are "
+                                               + "only supported by BVS using "
+                                               + "openflow 1.3");
+        }
+
+        Match match = pktIn.getMatch();
+        if(match == null) {
+            return ImmutableSet.<OFBsnPktinFlag>of();
+        }
+        OFMetadata metaData = match.get(MatchField.METADATA);
+        if(metaData == null) {
+            return ImmutableSet.<OFBsnPktinFlag>of();
+        }
+        U64 metaDataValue = metaData.getValue();
+        if(metaDataValue == null) {
+            return ImmutableSet.<OFBsnPktinFlag>of();
+        }
+        return OFBsnPktinFlagSerializerVer13.ofWireValue(metaDataValue
+                                                               .getValue());
+    }
+}