ByteTuple

src/main/java/org/redkale/util/ByteArray.java

@@ -23,6 +23,8 @@ import org.redkale.annotation.Nullable;
  */
 public final class ByteArray implements ByteTuple {
 
+    static final byte[] EMPTY_BYTES = new byte[0];
+
     private byte[] content;
 
     private int count;
@@ -431,7 +433,7 @@ public final class ByteArray implements ByteTuple {
      */
     public byte[] getBytes(int offset, int length) {
         if (length < 1) {
-            return new byte[0];
+            return EMPTY_BYTES;
         }
         byte[] bs = new byte[length];
         System.arraycopy(this.content, offset, bs, 0, length);

src/main/java/org/redkale/util/ByteTuple.java

@@ -27,4 +27,22 @@ public interface ByteTuple {
         int o = offset();
         return Arrays.copyOfRange(content(), o, o + length());
     }
+
+    public static final ByteTuple EMPTY = new ByteTuple() {
+
+        @Override
+        public byte[] content() {
+            return ByteArray.EMPTY_BYTES;
+        }
+
+        @Override
+        public int offset() {
+            return 0;
+        }
+
+        @Override
+        public int length() {
+            return 0;
+        }
+    };
 }