Hi. I have built Struts 2 from the head a few days ago. I am trying to move my
ajax code over to the new dojo plugin, but it doesn't seem to work for me. The
examples in the showcase do work, however I get an error when I try to add the
functionality to my own site.
The error seems to be present for the rendering of dojo tags. For a closing
tree tag:
2007-09-20 11:25:02,927 ERROR (org.apache.struts2.components.ClosingUIBean:60)
- Could not open template
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at
org.apache.struts2.dojo.components.Tree.evaluateExtraParams(Tree.java:270)
at org.apache.struts2.components.UIBean.evaluateParams(UIBean.java:828)
at org.apache.struts2.components.UIBean.end(UIBean.java:493)
at
org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:41)
etc.
I have added the new struts core jar, the dojo plugin jar, and the new xwork
jar to my lib directory. I peeked at the stack. In the tree case the line
270 boolean generateId =
!(Boolean)stack.getContext().get(Head.PARSE_CONTENT);
In Tree causes the error. stack.getContext() is an empty map and the attempt to
cast the null result of the lookup to a Boolean and negate it throws the
exception. Presumably the wrong context is being returned, or perhaps The wrong
stack was passed to the bean. The jsp snippit that is causing the error is
...
<%@ taglib prefix="sx" uri="/struts-dojo-tags" %>
...
<head>
<jsp:include page="/ajax/commonInclude.jsp"/>
</head>
...
<sx:tree rootNode="%{root}"
childCollectionProperty="directories"
nodeIdProperty="id"
nodeTitleProperty="name"treeSelectedTopic="nodeSelected">
</sx:tree>
...
What must I do to get dojo working? Am I missing something configuration wise?
The examples work for me. Is there somewhere I have to enable or configure the
dojo plugin?
Thanks
- Nick Engelking
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