克隆时出现的NPE问题

src/main/java/com/fr/plugin/file/submit/oss/fun/OssSubmitTarget.java

@@ -100,9 +100,15 @@ public class OssSubmitTarget implements XMLable {
     public Object clone() throws CloneNotSupportedException {
         OssSubmitTarget cloned = (OssSubmitTarget) super.clone();
         cloned.bucket = bucket;
-        cloned.directory = (OssVariableValue) directory.clone();
-        cloned.name = (OssVariableValue) name.clone();
-        cloned.file = (OssVariableValue) file.clone();
+        if (directory != null) {
+            cloned.directory = (OssVariableValue) directory.clone();
+        }
+        if (name != null) {
+            cloned.name = (OssVariableValue) name.clone();
+        }
+        if (file != null) {
+            cloned.file = (OssVariableValue) file.clone();
+        }
         return cloned;
     }
 }