[JAVA] add guava license header (#1283)

relates to #1275

java/fury-core/src/main/java/org/apache/fury/util/Preconditions.java

@@ -1,25 +1,25 @@
 /*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you 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
+ * Copyright (C) 2007 The Guava Authors
  *
- *   http://www.apache.org/licenses/LICENSE-2.0
+ * 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
  *
- * 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.
+ * 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 org.apache.fury.util;
 
-/** Check utils. */
+/**
+ * Check utils.
+ *
+ * <p>derived from
+ * https://github.com/google/guava/blob/master/guava/src/com/google/common/base/Preconditions.java
+ */
 public class Preconditions {
   public static <T> T checkNotNull(T o) {
     if (o == null) {

licenserc.toml

@@ -43,6 +43,7 @@ excludes = [
     "java/fury-core/src/main/java/org/apache/fury/memory/MemoryBuffer.java",
     "java/fury-core/src/main/java/org/apache/fury/type/Generics.java",
     "java/fury-core/src/main/java/org/apache/fury/util/Platform.java",
+    "java/fury-core/src/main/java/org/apache/fury/util/Preconditions.java",
     "java/fury-core/src/test/java/org/apache/fury/type/GenericsTest.java",
     "java/fury-format/src/main/java/org/apache/fury/format/vectorized/ArrowWriter.java",
     "javascript/packages/hps/src/v8-fast-api-calls.h",