Fix malformed javadoc

Fix literal characters, html tags, and malformed usages.
diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/VlanVid.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/VlanVid.java
index ee605de..1c3eba4 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/VlanVid.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/VlanVid.java
@@ -10,7 +10,7 @@
 
 /** Represents an 802.1Q Vlan VID (12 bits).
  *
- * @author Andreas Wundsam <andreas.wundsam@bigswitch.com>
+ * @author Andreas Wundsam {@literal <}andreas.wundsam@bigswitch.com{@literal >}
  *
  */
 public class VlanVid implements OFValueType<VlanVid> {