Merge branch 'main' of github.com:zfoo-project/zfoo into main

protocol/src/main/java/com/zfoo/protocol/util/StringUtils.java

@@ -179,7 +179,7 @@ public abstract class StringUtils {
     }
 
     public static String trim(String str) {
-        if (StringUtils.isBlank(str)) {
+        if (isEmpty(str)) {
             return EMPTY;
         }
         return str.trim();