Disabled udp listener.

Added test node and changed to olympic.

app/src/main/java/org/ethereum/android_app/TestsFragment.java

@@ -67,7 +67,7 @@ public class TestsFragment extends Fragment implements ConnectorHandler {
 
             switch(v.getId()){
                 case R.id.connectButton:
-                    EthereumApplication.ethereum.connect("192.168.122.90", 30303, "aceb348f4fd7b9b5033b1703b724970d93dbc6ee8410bdc20bc0585e668d629e542cd8ec560311fc8f4a0851c914aae8945555adee73878063dfa0078cc03e07");
+                    EthereumApplication.ethereum.connect("139.162.13.89", 30303, "f471362a05597ef17cb28ba6aa94ebf05af4b68c5fa2f34cc0c50939b58904db00ba8c60b810d06a350df5fd4c7152bd4bd42a782ae455917252f8d1814c6d9d");
                     break;
                 case R.id.getEthereumStatus:
                     EthereumApplication.ethereum.getConnectionStatus(identifier);

ethereumj-core-android/src/main/java/org/ethereum/android/service/EthereumRemoteService.java

@@ -258,7 +258,7 @@ public class EthereumRemoteService extends EthereumService {
         component = DaggerEthereumComponent.builder()
                 .ethereumModule(new EthereumModule(this))
                 .build();
-        component.udpListener();
+        //component.udpListener();
         ethereum = component.ethereum();
         ethereum.addListener(new EthereumListener());
     }

ethereumj-core/src/main/java/org/ethereum/net/rlpx/discover/NodeManager.java

@@ -266,7 +266,9 @@ public class NodeManager implements Functional.Consumer<DiscoveryEvent>{
         if (discoveryEnabled) {
             logger.trace(" <===({}) {} [{}] {}", discoveryEvent.getAddress(),
                     discoveryEvent.getMessage().getClass().getSimpleName(), this, discoveryEvent.getMessage());
-            messageSender.accept(discoveryEvent);
+            if (messageSender != null) {
+                messageSender.accept(discoveryEvent);
+            }
         }
     }
 

ethereumj-core/src/main/resources/ethereumj.conf

@@ -40,11 +40,11 @@ peer {
 
     # Boot node list
     active = [
-        {
-            ip: "192.168.122.90",
-            port: 30303,
-            nodeId: "aceb348f4fd7b9b5033b1703b724970d93dbc6ee8410bdc20bc0585e668d629e542cd8ec560311fc8f4a0851c914aae8945555adee73878063dfa0078cc03e07"
-        }
+        # {
+        #    ip: "139.162.13.89",
+        #    port: 30303,
+        #    nodeId: "f471362a05597ef17cb28ba6aa94ebf05af4b68c5fa2f34cc0c50939b58904db00ba8c60b810d06a350df5fd4c7152bd4bd42a782ae455917252f8d1814c6d9d"
+        # }
     ]
 
     # The protocols supported by peer
@@ -84,7 +84,7 @@ peer {
 # contains several versions of
 # genesis configuration according
 # to the network the peer will run on
-genesis = frontier.json
+genesis = olympic.json
 
 # the time we wait to the network
 # to approve the transaction, the