Netty bug fix: Do not use weakValues in a cache where we track outstanding responses.

@@ -8,7 +8,7 @@ export ONOS_ROOT=${ONOS_ROOT:-~/onos-next}
 # Setup some environmental context for developers
 if [ -z "${JAVA_HOME}" ]; then
     if [ -x /usr/libexec/java_home ]; then
-        export JAVA_HOME=$(/usr/libexec/java_home -v 1.7)
+        export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)
     elif [ -d /usr/lib/jvm/java-7-openjdk-amd64 ]; then
         export JAVA_HOME="/usr/lib/jvm/java-7-openjdk-amd64"
     fi

@@ -55,8 +55,8 @@ public class Endpoint {
     @Override
     public String toString() {
         return MoreObjects.toStringHelper(getClass())
-                .add("port", port)
                 .add("host", host)
+                .add("port", port)
                 .toString();
     }
 

@@ -26,7 +26,7 @@ import java.io.IOException;
  */
 public final class InternalMessage implements Message {
 
-    public static final String REPLY_MESSAGE_TYPE = "NETTY_MESSAGIG_REQUEST_REPLY";
+    public static final String REPLY_MESSAGE_TYPE = "NETTY_MESSAGING_REQUEST_REPLY";
 
     private long id;
     private Endpoint sender;

@@ -67,7 +67,6 @@ public class NettyMessagingService implements MessagingService {
     private final AtomicLong messageIdGenerator = new AtomicLong(0);
     private final Cache<Long, SettableFuture<byte[]>> responseFutures = CacheBuilder.newBuilder()
             .maximumSize(100000)
-            .weakValues()
             // TODO: Once the entry expires, notify blocking threads (if any).
             .expireAfterWrite(10, TimeUnit.MINUTES)
             .build();
@@ -174,7 +173,12 @@ public class NettyMessagingService implements MessagingService {
             .withType(type)
             .withPayload(payload)
             .build();
-        sendAsync(ep, message);
+        try {
+            sendAsync(ep, message);
+        } catch (IOException e) {
+            responseFutures.invalidate(messageId);
+            throw e;
+        }
         return futureResponse;
     }
 
@@ -293,7 +297,8 @@ public class NettyMessagingService implements MessagingService {
                     if (futureResponse != null) {
                         futureResponse.set(message.payload());
                     } else {
-                        log.warn("Received a reply. But was unable to locate the request handle");
+                        log.warn("Received a reply for message id:[{}]. "
+                                + "But was unable to locate the request handle", message.id());
                     }
                 } finally {
                     NettyMessagingService.this.responseFutures.invalidate(message.id());