fixed license in XXH3Base

build.gradle

@@ -199,7 +199,8 @@ spotless {
 		]),
 		new Tuple3('javaXXH', 'APACHE_2_0_XXH',[
 			'src/main/java/com/dynatrace/hash4j/hashing/XXH3_64.java',
-			'src/main/java/com/dynatrace/hash4j/hashing/XXH3_128.java'
+			'src/main/java/com/dynatrace/hash4j/hashing/XXH3_128.java',
+			'src/main/java/com/dynatrace/hash4j/hashing/XXH3Base.java'
 		])
 	]
 

src/main/java/com/dynatrace/hash4j/hashing/XXH3Base.java

@@ -13,6 +13,28 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
+/*
+ * This implementation was derived from
+ *
+ * https://github.com/OpenHFT/Zero-Allocation-Hashing/blob/zero-allocation-hashing-0.16/src/main/java/net/openhft/hashing/XXH3.java
+ *
+ * which was published under the license below:
+ *
+ * Copyright 2015 Higher Frequency Trading http://www.higherfrequencytrading.com
+ *
+ * Licensed 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 com.dynatrace.hash4j.hashing;
 
 import static com.dynatrace.hash4j.hashing.AbstractHasher.*;