version to 3.9.9

Author: liaochong

example/pom.xml

@@ -43,7 +43,7 @@
         <dependency>
             <groupId>com.github.liaochong</groupId>
             <artifactId>myexcel</artifactId>
-            <version>3.9.8</version>
+            <version>3.9.9</version>
         </dependency>
         <dependency>
             <groupId>org.freemarker</groupId>

pom.xml

@@ -11,7 +11,7 @@
 
     <groupId>com.github.liaochong</groupId>
     <artifactId>myexcel</artifactId>
-    <version>3.9.8</version>
+    <version>3.9.9</version>
     <packaging>jar</packaging>
 
     <name>myexcel</name>

src/main/java/com/github/liaochong/myexcel/core/style/BorderStyle.java

@@ -17,7 +17,11 @@
 
 import org.apache.poi.ss.usermodel.CellStyle;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
@@ -51,14 +55,14 @@ public static void setBorder(CellStyle cellStyle, Map<String, String> tdStyle) {
         if (tdStyle == null) {
             return;
         }
-        tdStyle = new HashMap<>(tdStyle);
         String borderStyle = tdStyle.get(BORDER_STYLE);
         if (borderStyle != null) {
             Matcher matcher = BORDER_PATTERN.matcher(borderStyle);
             List<String> styles = new ArrayList<>();
             while (matcher.find()) {
                 styles.add(matcher.group());
             }
+            tdStyle = new HashMap<>(tdStyle);
             if (styles.size() == 1) {
                 tdStyle.put(BORDER_TOP_STYLE, styles.get(0));
                 tdStyle.put(BORDER_RIGHT_STYLE, styles.get(0));