increase loogging, dead socket, invalid packets, echo req

ice-adapter/src/main/java/com/faforever/iceadapter/ice/PeerConnectivityCheckerModule.java

@@ -99,6 +99,7 @@ private void checkerThread() {
             }
 
             if (System.currentTimeMillis() - lastPacketReceived > 10000) {
+                log.warn("Didn't receive any answer to echo requests for the past 10 seconds from {}, aborting connection", ice.getPeer().getRemoteLogin());
                 new Thread(ice::onConnectionLost).start();
                 return;
             }

ice-adapter/src/main/java/com/faforever/iceadapter/ice/PeerIceModule.java

@@ -428,11 +428,11 @@ public void listener() {
                         sendViaIce(data, 0, packet.getLength());//Turn around, send echo back
                     }
                 } else {
-                    log.warn(getLogPrefix() + "Received invalid packet, first byte: 0x{}", data[0]);
+                    log.warn(getLogPrefix() + "Received invalid packet, first byte: 0x{}, length: {}", data[0], packet.getLength());
                 }
 
             } catch (IOException e) {//TODO: nullpointer from localComponent.xxxx????
-                log.warn(getLogPrefix() + "Error while reading from ICE adapter");
+                log.warn(getLogPrefix() + "Error while reading from ICE adapter", e);
                 if(component == localComponent) {
                     onConnectionLost();
                 }