NIFI-2615 Fixed checkstyle violations and RAT (missing license) issues.

nifi-nar-bundles/nifi-tcp-bundle/nifi-tcp-processors/src/main/java/org/apache/nifi/processors/gettcp/AbstractSocketHandler.java

@@ -28,7 +28,6 @@ import java.util.Set;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.atomic.AtomicBoolean;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -58,8 +57,9 @@ abstract class AbstractSocketHandler {
 
     /**
      *
-     * @param address
-     * @param server
+     * @param address the socket address
+     * @param readingBufferSize the buffer size
+     * @param endOfMessageByte the byte indicating EOM
      */
     public AbstractSocketHandler(InetSocketAddress address, int readingBufferSize, byte endOfMessageByte) {
         this.address = address;
@@ -71,7 +71,7 @@ abstract class AbstractSocketHandler {
 
     /**
      *
-     * @return
+     *
      */
     public void start() {
         if (this.isRunning.compareAndSet(false, true)) {
@@ -97,7 +97,7 @@ abstract class AbstractSocketHandler {
 
     /**
      *
-     * @param force
+     *
      */
     public void stop() {
         if (this.isRunning.compareAndSet(true, false)) {
@@ -136,7 +136,7 @@ abstract class AbstractSocketHandler {
 
     /**
      *
-     * @throws Exception
+     * @throws Exception if an exception occurs
      */
     abstract InetSocketAddress connect() throws Exception;
 
@@ -144,14 +144,14 @@ abstract class AbstractSocketHandler {
      * Will process the data received from the channel
      * @param selectionKey key for the channel the data came from
      * @param buffer buffer of received data
-     * @throws IOException
+     * @throws IOException if there is a problem processing the data
      */
     abstract void processData(SelectionKey selectionKey, ByteBuffer buffer) throws IOException;
 
     /**
      *
-     * @param selectionKey
-     * @throws IOException
+     * @param selectionKey the selection key
+     * @throws IOException if there is a problem
      */
     void doAccept(SelectionKey selectionKey) throws IOException {
         // noop

nifi-nar-bundles/nifi-tcp-bundle/nifi-tcp-processors/src/test/java/org/apache/nifi/processors/gettcp/ReceivingClientTest.java

@@ -1,3 +1,19 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.apache.nifi.processors.gettcp;
 
 import static org.junit.Assert.assertEquals;
@@ -15,7 +31,6 @@ import java.util.List;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
-
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Ignore;

nifi-nar-bundles/nifi-tcp-bundle/nifi-tcp-processors/src/test/java/org/apache/nifi/processors/gettcp/Server.java

@@ -35,9 +35,9 @@ public class Server extends AbstractSocketHandler {
     }
 
     /**
-     *
-     * @param address
-     * @param readingBufferSize
+     * @param address           the socket address
+     * @param readingBufferSize the buffer size
+     * @param endOfMessageByte  the byte indicating the EOM
      */
     public Server(InetSocketAddress address, int readingBufferSize, byte endOfMessageByte) {
         super(address, readingBufferSize, endOfMessageByte);

nifi-nar-bundles/nifi-tcp-bundle/nifi-tcp-processors/src/test/resources/log4j.properties

@@ -1,3 +1,20 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
 log4j.rootCategory=DEBUG, stdout
 
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender