IPAddresses: fix accidental use of byte[].toString()
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 5ef301b..0a8994a 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
@@ -26,7 +26,7 @@
     public static IPv4Address of(final byte[] address) {
         if (address.length != LENGTH) {
             throw new IllegalArgumentException(
-                    "Invalid byte array length for IPv4Address address: " + address);
+                    "Invalid byte array length for IPv4Address address: " + address.length);
         }
 
         int raw =
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 ea71c65..8afdaba 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
@@ -31,7 +31,7 @@
     public static IPv6Address of(final byte[] address) {
         if (address.length != LENGTH) {
             throw new IllegalArgumentException(
-                    "Invalid byte array length for IPv6 address: " + address);
+                    "Invalid byte array length for IPv6 address: " + address.length);
         }
 
         long raw1 =