[HUDI-1439] Remove scala dependency from hudi-client-common (#2306)

style/checkstyle.xml

@@ -304,5 +304,10 @@
         <!-- Checks for simple boolean expressions. -->
         <module name="SimplifyBooleanExpression"/>
 
+        <module name="ImportControl">
+            <property name="file" value="style/import-control.xml"/>
+            <property name="path" value="^.*[\\/]hudi-client[\\/]hudi-client-common[\\/]src[\\/].*$"/>
+        </module>
+
     </module>
 </module>

style/import-control.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+<!--
+  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
+
+       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.
+-->
+<!DOCTYPE import-control PUBLIC
+        "-//Checkstyle//DTD ImportControl Configuration 1.4//EN"
+        "https://checkstyle.org/dtds/import_control_1_4.dtd">
+
+<import-control pkg="org" strategyOnMismatch="allowed">
+    <disallow pkg="scala"/>
+</import-control>
+
+