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    copied!<p>EDIT: Please put a System.out.println("something"); on every if / else block to see exactly where are you passing; </p> <p>As a note, <a href="http://struts.apache.org/2.0.6/docs/how-do-we-get-access-to-the-session.html" rel="nofollow">the preferred way to get the session object</a> is to implement SessionAware, instead of using ActionContext;</p> <hr> <p>Does your JSON Action looks like this ? :</p> <p><a href="http://struts.jgeppert.com/struts2-jquery-showcase/index.action" rel="nofollow">http://struts.jgeppert.com/struts2-jquery-showcase/index.action</a></p> <p>(go to <code>More Widgets -&gt; Charts -&gt; JSON Action</code>, in the bottom right tab.</p> <pre><code>@ParentPackage(value = "showcase") public class JsonChartData extends ActionSupport { private static final long serialVersionUID = 6659512910595305843L; private List&lt;ListValue&gt; objList; private Map&lt;Double, Double&gt; doubleMap; @Actions( { @Action(value = "/json-chart-data", results = { @Result(name = "success", type = "json") }) }) public String execute() { objList = new ArrayList&lt;ListValue&gt;(); doubleMap = new TreeMap&lt;Double, Double&gt;(); Random generator = new Random(); for (int i = 1; i &lt;= 24; i++) { doubleMap.put(Double.valueOf("" + i), generator.nextDouble() * 10.0); } for (int i = 1; i &lt;= 24; i++) { objList.add(new ListValue("" + i, "" + generator.nextInt(30))); } return SUCCESS; } public String getJSON() { return execute(); } public List&lt;ListValue&gt; getObjList() { return objList; } public void setObjList(List&lt;ListValue&gt; objList) { this.objList = objList; } public Map&lt;Double, Double&gt; getDoubleMap() { return doubleMap; } public void setDoubleMap(Map&lt;Double, Double&gt; doubleMap) { this.doubleMap = doubleMap; } } </code></pre>
 

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