fix test stuff

core/src/main/java/com/vergepay/core/coins/NxtMain.java

@@ -0,0 +1,28 @@
+package com.vergepay.core.coins;
+
+import com.vergepay.core.coins.families.NxtFamily;
+
+/**
+ * @author John L. Jegutanis
+ */
+public class NxtMain extends NxtFamily {
+
+    private NxtMain() {
+        id = "nxt.main";
+
+        name = "NXT";
+        symbol = "NXT";
+        uriScheme = "nxt";
+        bip44Index = 29;
+        unitExponent = 8;
+        addressPrefix = "NXT-";
+        feeValue = oneCoin();
+        minNonDust = value(1);
+        feePolicy = FeePolicy.FLAT_FEE;
+    }
+
+    private static final NxtMain instance = new NxtMain();
+    public static synchronized CoinType get() {
+        return instance;
+    }
+}

core/src/main/java/com/vergepay/core/coins/families/NxtFamily.java

@@ -0,0 +1,40 @@
+package com.vergepay.core.coins.families;
+
+import com.vergepay.core.coins.CoinType;
+import com.vergepay.core.exceptions.AddressMalformedException;
+import com.vergepay.core.messages.MessageFactory;
+import com.vergepay.core.wallet.AbstractAddress;
+import com.vergepay.core.wallet.families.nxt.NxtAddress;
+import com.vergepay.core.wallet.families.nxt.NxtTxMessage;
+
+import javax.annotation.Nullable;
+
+
+/**
+ * @author John L. Jegutanis
+ *
+ * Coins that belong to this family are: NXT, Burst, etc
+ */
+public abstract class NxtFamily extends CoinType {
+    public static final short DEFAULT_DEADLINE = 1440;
+
+    {
+        family = Families.NXT;
+    }
+
+    @Override
+    public AbstractAddress newAddress(String addressStr) throws AddressMalformedException {
+        return NxtAddress.fromString(this, addressStr);
+    }
+
+    @Override
+    public boolean canHandleMessages() {
+        return true;
+    }
+
+    @Override
+    @Nullable
+    public MessageFactory getMessagesFactory() {
+        return NxtTxMessage.getFactory();
+    }
+}