SONAR suggestion - generic exceptions

Replace uses of generic RuntimeException
with more appropriate unchecked exceptions

Change-Id: If283743c2cf7252b8d280bdb788708ebbe57da9d
diff --git a/apps/artemis/src/main/java/org/onosproject/artemis/impl/moas/MoasServerController.java b/apps/artemis/src/main/java/org/onosproject/artemis/impl/moas/MoasServerController.java
index c27a134..33e30d0 100644
--- a/apps/artemis/src/main/java/org/onosproject/artemis/impl/moas/MoasServerController.java
+++ b/apps/artemis/src/main/java/org/onosproject/artemis/impl/moas/MoasServerController.java
@@ -77,22 +77,17 @@
      * Create netty server bootstrap.
      *
      * @return bootstrap
-     * @throws Exception exception
      */
-    private ServerBootstrap createServerBootStrap() throws Exception {
-        try {
-            bossGroup = new NioEventLoopGroup();
-            workerGroup = new NioEventLoopGroup();
+    private ServerBootstrap createServerBootStrap() {
+        bossGroup = new NioEventLoopGroup();
+        workerGroup = new NioEventLoopGroup();
 
-            return new ServerBootstrap()
-                    .group(bossGroup, workerGroup)
-                    .channel(NioServerSocketChannel.class)
-                    .option(ChannelOption.SO_REUSEADDR, true)
-                    .childOption(ChannelOption.SO_KEEPALIVE, true)
-                    .childOption(ChannelOption.TCP_NODELAY, true);
-        } catch (Exception e) {
-            throw new Exception(e);
-        }
+        return new ServerBootstrap()
+                .group(bossGroup, workerGroup)
+                .channel(NioServerSocketChannel.class)
+                .option(ChannelOption.SO_REUSEADDR, true)
+                .childOption(ChannelOption.SO_KEEPALIVE, true)
+                .childOption(ChannelOption.TCP_NODELAY, true);
     }
 
     /**