added comments

Author: ic0ns

src/main/java/de/rub/nds/protocol/crypto/ec/FieldElementF2m.java

@@ -35,6 +35,7 @@ public FieldElementF2m(BigInteger data, BigInteger modulus) {
         super(data, modulus);
     }
 
+    /** Default constructor for deserialization. */
     @SuppressWarnings("unused")
     private FieldElementF2m() {
         super(null, null);

src/main/java/de/rub/nds/protocol/crypto/ec/FieldElementFp.java

@@ -18,6 +18,7 @@ public FieldElementFp(BigInteger data, BigInteger modulus) {
         super(data.mod(modulus), modulus);
     }
 
+    /** Default constructor for deserialization. */
     @SuppressWarnings("unused")
     private FieldElementFp() {
         super(null, null);

src/main/java/de/rub/nds/protocol/xml/Pair.java

@@ -20,6 +20,7 @@ public class Pair<L, R> {
     private L leftElement;
     private R rightElement;
 
+    /** Default constructor for deserialization. */
     @SuppressWarnings("unused")
     private Pair() {}