Рефакторинг

src/main/java/ru/serega6531/packmate/utils/PacketUtils.java

@@ -0,0 +1,19 @@
+package ru.serega6531.packmate.utils;
+
+import lombok.experimental.UtilityClass;
+import org.apache.commons.lang3.ArrayUtils;
+import ru.serega6531.packmate.model.Packet;
+
+import java.util.List;
+import java.util.Optional;
+
+@UtilityClass
+public class PacketUtils {
+
+    public static Optional<byte[]> mergePackets(List<Packet> cut) {
+        return cut.stream()
+                .map(Packet::getContent)
+                .reduce(ArrayUtils::addAll);
+    }
+
+}