Fix JavaDocs & Checkstyle violations

Author: artembilan

spring-amqp/src/main/java/org/springframework/amqp/ImmediateRequeueAmqpException.java

@@ -18,7 +18,7 @@
 
 /**
  * The special {@link AmqpException} to be thrown from the listener (e.g. retry recoverer callback)
- * to {@code requeue) failed message.
+ * to {@code requeue} failed message.
  *
  * @author Artem Bilan
  *

spring-rabbit/src/main/java/org/springframework/amqp/rabbit/config/RetryInterceptorBuilder.java

@@ -59,6 +59,7 @@
  *				.build();
  * </pre>
  *
+ * @param <B> The target {@link RetryInterceptorBuilder} implementation type.
  * @param <T> The type of {@link MethodInterceptor} returned by the builder's {@link #build()} method.
  *
  * @author James Carr

spring-rabbit/src/main/java/org/springframework/amqp/rabbit/connection/RabbitConnectionFactoryBean.java

@@ -616,7 +616,7 @@ public void setChannelRpcTimeout(int channelRpcTimeout) {
 	 * <code>useSslProtocol</code> methods. Requires amqp-client 5.4.0 or later.
 	 * @param enable false to disable.
 	 * @since 2.0.6
-	 * @see ConnectionFactory#enableHostnameVerification()
+	 * @see com.rabbitmq.client.ConnectionFactory#enableHostnameVerification()
 	 */
 	public void setEnableHostnameVerification(boolean enable) {
 		this.enableHostnameVerification = enable;

spring-rabbit/src/test/java/org/springframework/amqp/rabbit/config/RetryInterceptorBuilderSupportTests.java

@@ -34,7 +34,6 @@
 import org.aopalliance.intercept.MethodInterceptor;
 import org.junit.Test;
 
-import org.springframework.amqp.ImmediateAcknowledgeAmqpException;
 import org.springframework.amqp.ImmediateRequeueAmqpException;
 import org.springframework.amqp.core.AmqpTemplate;
 import org.springframework.amqp.core.Message;