<f:selectItems>空值问题
报错的代码：java.lang.NullPointerException at com.sun.facelets.util.FastWriter.write(FastWriter.java:77) at com.sun.facelets.StateWriter.write(StateWriter.java:116) at com.sun.faces.renderkit.html_basic.HtmlResponseWriter.write(HtmlResponseWriter.java:524) at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOption(MenuRenderer.java:561) at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:739) at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:794) at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:279) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:850) 报错的原因是SelectItem里有itemValue或itemLable为空
请检查<f:selectItems>,<f:selectItem>的value属性内容是否有空指针
参见：
http://forum.java.sun.com/thread.jspa?threadID=5305544&tstart=0
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