Prevent logging when no reply is provided for an AbstractReplyProducingMessageHandler if logging is disabled

Author: mitchmcd18

spring-integration-core/src/main/java/org/springframework/integration/handler/AbstractReplyProducingMessageHandler.java

@@ -155,7 +155,7 @@ else if (this.requiresReply && !isAsync()) {
 			throw new ReplyRequiredException(message, "No reply produced by handler '" +
 					getComponentName() + "', and its 'requiresReply' property is set to true.");
 		}
-		else if (!isAsync()) {
+		else if (!isAsync() && isLoggingEnabled()) {
 			logger.debug(LogMessage.format("handler '%s' produced no reply for request Message: %s", this, message));
 		}
 	}