diff --git a/hugegraph-style.xml b/hugegraph-style.xml
index 8536d5154c..cb08893399 100644
--- a/hugegraph-style.xml
+++ b/hugegraph-style.xml
@@ -1,81 +1,96 @@
 <!--
   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
+  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.
+  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.
   -->
 
 <!-- This file could be imported in IDEA for correct code-style -->
 <code_scheme name="hugegraph-style" version="173">
-  <option name="LINE_SEPARATOR" value="&#xA;" />
-  <option name="RIGHT_MARGIN" value="100" />
-  <option name="WRAP_WHEN_TYPING_REACHES_RIGHT_MARGIN" value="true" />
-  <option name="SOFT_MARGINS" value="100" />
-  <JavaCodeStyleSettings>
-    <option name="ANNOTATION_PARAMETER_WRAP" value="1" />
-    <option name="ALIGN_MULTILINE_ANNOTATION_PARAMETERS" value="true" />
-    <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="100" />
-    <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="100" />
-    <option name="IMPORT_LAYOUT_TABLE">
-      <value>
-        <package name="" withSubpackages="true" static="true" />
-        <emptyLine />
-        <package name="java" withSubpackages="true" static="false" />
-        <emptyLine />
-        <package name="javax" withSubpackages="true" static="false" />
-        <emptyLine />
-        <package name="org" withSubpackages="true" static="false" />
-        <emptyLine />
-        <package name="com" withSubpackages="true" static="false" />
-        <emptyLine />
-        <package name="" withSubpackages="true" static="false" />
-      </value>
-    </option>
-  </JavaCodeStyleSettings>
-  <XML>
-    <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
-  </XML>
-  <codeStyleSettings language="JAVA">
-    <option name="LINE_COMMENT_AT_FIRST_COLUMN" value="false" />
-    <option name="ALIGN_MULTILINE_CHAINED_METHODS" value="true" />
-    <option name="ALIGN_MULTILINE_PARAMETERS_IN_CALLS" value="true" />
-    <option name="ALIGN_MULTILINE_BINARY_OPERATION" value="true" />
-    <option name="ALIGN_MULTILINE_ASSIGNMENT" value="true" />
-    <option name="ALIGN_MULTILINE_TERNARY_OPERATION" value="true" />
-    <option name="ALIGN_MULTILINE_THROWS_LIST" value="true" />
-    <option name="ALIGN_MULTILINE_EXTENDS_LIST" value="true" />
-    <option name="ALIGN_MULTILINE_ARRAY_INITIALIZER_EXPRESSION" value="true" />
-    <option name="CALL_PARAMETERS_WRAP" value="1" />
-    <option name="METHOD_PARAMETERS_WRAP" value="1" />
-    <option name="RESOURCE_LIST_WRAP" value="1" />
-    <option name="EXTENDS_LIST_WRAP" value="1" />
-    <option name="THROWS_LIST_WRAP" value="1" />
-    <option name="METHOD_CALL_CHAIN_WRAP" value="1" />
-    <option name="BINARY_OPERATION_WRAP" value="1" />
-    <option name="TERNARY_OPERATION_WRAP" value="1" />
-    <option name="FOR_STATEMENT_WRAP" value="1" />
-    <option name="ARRAY_INITIALIZER_WRAP" value="1" />
-    <option name="ASSIGNMENT_WRAP" value="1" />
-    <option name="ASSERT_STATEMENT_WRAP" value="1" />
-    <option name="IF_BRACE_FORCE" value="1" />
-    <option name="DOWHILE_BRACE_FORCE" value="3" />
-    <option name="WHILE_BRACE_FORCE" value="1" />
-    <option name="FOR_BRACE_FORCE" value="1" />
-    <option name="WRAP_LONG_LINES" value="true" />
-    <option name="PARAMETER_ANNOTATION_WRAP" value="1" />
-    <option name="ENUM_CONSTANTS_WRAP" value="2" />
-    <indentOptions>
-      <option name="SMART_TABS" value="true" />
-    </indentOptions>
-  </codeStyleSettings>
+    <option name="LINE_SEPARATOR" value="&#xA;"/>
+    <option name="RIGHT_MARGIN" value="100"/>
+    <option name="WRAP_WHEN_TYPING_REACHES_RIGHT_MARGIN" value="true"/>
+    <option name="SOFT_MARGINS" value="100"/>
+    <JavaCodeStyleSettings>
+        <option name="ANNOTATION_PARAMETER_WRAP" value="1"/>
+        <option name="ALIGN_MULTILINE_ANNOTATION_PARAMETERS" value="true"/>
+        <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="100"/>
+        <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="100"/>
+        <option name="IMPORT_LAYOUT_TABLE">
+            <value>
+                <package name="" withSubpackages="true" static="true"/>
+                <emptyLine/>
+                <package name="java" withSubpackages="true" static="false"/>
+                <emptyLine/>
+                <package name="javax" withSubpackages="true" static="false"/>
+                <emptyLine/>
+                <package name="org" withSubpackages="true" static="false"/>
+                <emptyLine/>
+                <package name="com" withSubpackages="true" static="false"/>
+                <emptyLine/>
+                <package name="" withSubpackages="true" static="false"/>
+            </value>
+        </option>
+    </JavaCodeStyleSettings>
+    <codeStyleSettings language="JAVA">
+        <option name="RIGHT_MARGIN" value="100"/>
+        <option name="LINE_COMMENT_AT_FIRST_COLUMN" value="false"/>
+        <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1"/>
+        <option name="KEEP_BLANK_LINES_IN_CODE" value="1"/>
+        <option name="KEEP_BLANK_LINES_BETWEEN_PACKAGE_DECLARATION_AND_HEADER" value="1"/>
+        <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="1"/>
+        <option name="BLANK_LINES_BEFORE_METHOD_BODY" value="1"/>
+        <option name="BLANK_LINES_AFTER_CLASS_HEADER" value="1"/>
+        <option name="BLANK_LINES_AFTER_ANONYMOUS_CLASS_HEADER" value="1"/>
+        <option name="ALIGN_MULTILINE_CHAINED_METHODS" value="true"/>
+        <option name="ALIGN_MULTILINE_PARAMETERS_IN_CALLS" value="true"/>
+        <option name="ALIGN_MULTILINE_BINARY_OPERATION" value="true"/>
+        <option name="ALIGN_MULTILINE_ASSIGNMENT" value="true"/>
+        <option name="ALIGN_MULTILINE_TERNARY_OPERATION" value="true"/>
+        <option name="ALIGN_MULTILINE_THROWS_LIST" value="true"/>
+        <option name="ALIGN_MULTILINE_EXTENDS_LIST" value="true"/>
+        <option name="ALIGN_MULTILINE_ARRAY_INITIALIZER_EXPRESSION" value="true"/>
+        <option name="CALL_PARAMETERS_WRAP" value="1"/>
+        <option name="METHOD_PARAMETERS_WRAP" value="1"/>
+        <option name="RESOURCE_LIST_WRAP" value="1"/>
+        <option name="EXTENDS_LIST_WRAP" value="1"/>
+        <option name="THROWS_LIST_WRAP" value="1"/>
+        <option name="METHOD_CALL_CHAIN_WRAP" value="1"/>
+        <option name="BINARY_OPERATION_WRAP" value="1"/>
+        <option name="TERNARY_OPERATION_WRAP" value="1"/>
+        <option name="FOR_STATEMENT_WRAP" value="1"/>
+        <option name="ARRAY_INITIALIZER_WRAP" value="1"/>
+        <option name="ASSIGNMENT_WRAP" value="1"/>
+        <option name="ASSERT_STATEMENT_WRAP" value="1"/>
+        <option name="IF_BRACE_FORCE" value="1"/>
+        <option name="DOWHILE_BRACE_FORCE" value="3"/>
+        <option name="WHILE_BRACE_FORCE" value="1"/>
+        <option name="FOR_BRACE_FORCE" value="1"/>
+        <option name="WRAP_LONG_LINES" value="true"/>
+        <option name="PARAMETER_ANNOTATION_WRAP" value="1"/>
+        <option name="ENUM_CONSTANTS_WRAP" value="2"/>
+        <option name="WRAP_ON_TYPING" value="1"/>
+        <option name="SOFT_MARGINS" value="100"/>
+        <indentOptions>
+            <option name="SMART_TABS" value="true"/>
+        </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="XML">
+        <option name="RIGHT_MARGIN" value="120"/>
+        <option name="SOFT_MARGINS" value="120"/>
+        <option name="XML_TEXT_WRAP" value="0"/>
+    </codeStyleSettings>
+    <Properties>
+        <option name="KEEP_BLANK_LINES" value="true"/>
+    </Properties>
 </code_scheme>