Exclude old versions of Netty from Maven-based build

pom.xml

@@ -565,6 +565,12 @@
             <groupId>org.apache.avro</groupId>
             <artifactId>avro-ipc</artifactId>
             <version>1.7.1.cloudera.2</version>
+            <exclusions>
+              <exclusion>
+                <groupId>org.jboss.netty</groupId>
+                <artifactId>netty</artifactId>
+              </exclusion>
+            </exclusions>
           </dependency>
         </dependencies>
       </dependencyManagement>

streaming/pom.xml

@@ -41,6 +41,12 @@
       <groupId>org.apache.flume</groupId>
       <artifactId>flume-ng-sdk</artifactId>
       <version>1.2.0</version>
+      <exclusions>
+        <exclusion>
+          <groupId>org.jboss.netty</groupId>
+          <artifactId>netty</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>com.github.sgroschupf</groupId>