请参考以下代码：

JavaScriptAction javascipt_action = new JavaScriptAction(Action.create(form.getDocument(),

Action.e_TypeJavaScript));

javascipt_action.setScript("var annot = this.addAnnot({ page : 0, type : \"Square\", rect : [ 0, 0, 100, 100 ], name :

\"UniqueID\", author : \"A. C. Robat\", contents : \"This section needs revision.\" });");

AdditionalAction aa = new AdditionalAction(field);

aa.setAction(AdditionalAction.e_TriggerAnnotCursorEnter, javascipt_action);

aa.doJSAction(AdditionalAction.e_TriggerAnnotCursorEnter);