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Created attachment 130812 [details] screenshot of netbeans 7.3RC1 with netbeans tag using "hash" <s:set name="lstAjaxAttribs" value="#{'search':'search','varbb':'varbb','totalpages}"/> Above tag renders fine in netbeans 6.9 but in 7.3 RC1 it shows up an error. Struts2 need to use "hash". I've given this high priority because no struts project can be opened in netbeans. Please resolve asap.
Sorry but you are complaining about issue by using "OGNL Expression Language" which is used by Struts2 but isn't supported by NetBeans IDE at all. NetBeans officially never supported Struts2 so issues you are facing should be reported against 3rd party plugins you installed for the Struts2 support. I'm marking this as duplicate of the issue #196311 - RFE to support OGNL in NetBeans. *** This bug has been marked as a duplicate of bug 196311 ***
BTW, the most used struts2 support is available here: http://plugins.netbeans.org/plugin/39218/struts2-support-repack-for-nb-7-0-xwork So if it's the plugin you are using, please report the issue here to the author: http://sourceforge.net/p/struts2nbplugin/tickets/