[commit] #1061 npe bug

Author: magiclu550

JPLS/src/main/java/cn/jsmod2/core/utils/Utils.java

@@ -222,14 +222,17 @@ public static String simpleClassName(Class<?> clz){
     }
 
     public static String arraysToString(String[] args){
-        if(args.length>1) {
-            StringBuilder builder = new StringBuilder(args[0]);
-            for (int i = 1; i < args.length; i++) {
-                builder.append(",");
-                builder.append(args[i]);
+        if(args!=null){
+            if(args.length>1) {
+                StringBuilder builder = new StringBuilder(args[0]);
+                for (int i = 1; i < args.length; i++) {
+                    builder.append(",");
+                    builder.append(args[i]);
+                }
+                return builder.toString();
             }
-            return builder.toString();
         }
+
         return "";
     }