diff --git a/designer-base/src/main/java/com/fr/design/javascript/ExportJavaScriptPane.java b/designer-base/src/main/java/com/fr/design/javascript/ExportJavaScriptPane.java
index e43857e21e..3561dc097f 100644
--- a/designer-base/src/main/java/com/fr/design/javascript/ExportJavaScriptPane.java
+++ b/designer-base/src/main/java/com/fr/design/javascript/ExportJavaScriptPane.java
@@ -696,7 +696,9 @@ public class ExportJavaScriptPane extends AbstractHyperLinkPane<ExportJavaScript
                             return;
                         }
                         SingleJavaScript js = getList().get(table.getSelectedRow());
-                        js.setParameters(parameterArr);
+                        if (parameterArr != null) {
+                            js.setParameters(parameterArr);
+                        }
                         fireTableDataChanged();
                     }
                 });