[ http://jira.magnolia.info/browse/MAGNOLIA-616?page=all ]
Fabrizio Giustina closed MAGNOLIA-616:
--------------------------------------
Fix Version: 3.0 RC1
Resolution: Fixed
Assign To: Fabrizio Giustina (was: Boris Kraft)
fixed for 3.0 rc1, please test it on weblogic
> src/main/info/magnolia/cms/taglibs/SetNode.java Does not implement a proper
> map for JSP page
> --------------------------------------------------------------------------------------------
>
> Key: MAGNOLIA-616
> URL: http://jira.magnolia.info/browse/MAGNOLIA-616
> Project: magnolia
> Type: Bug
> Components: taglibs
> Versions: 2.1.3
> Environment: BEA Weblogic 9
> Reporter: Ramon Buckland
> Assignee: Fabrizio Giustina
> Fix For: 3.0 RC1
> Attachments: SetNode.java
>
>
> The SetNode Taglib provides a Map of the node data as a JSP page attribute
> when it is called.
> The way it does this is by "wrapping" a ContentNode in an inner Map
> implementation
> public static class NodeMapWrapper implements Map {
> It is suspected that the implementation of the map is done because the map is
> needed to be
> read-only on the JSP page.
> As part of this quassi implementation of a Map, some of the methods are not
> implemented.
> One of the methods that is not implemented is
> /**
> * @see java.util.Map#entrySet()
> */
> public Set entrySet() {
> // not implemented, only get() is needed
> return null;
> }
> However, Weblogic 9, when a Map is "accessed" in the JSP page, it uses the
> entrySet method to see if the variable
> requested is actually there.
> ${mymap.somevar}
> in Tomcat relates to a call of
> mymap.get("somevar")
> however Weblogic 9, appears to do something like
> Set set = mymap.entrySet()
> // and derives the value from the Set.
> But because a null object in the impl is returned, the value is then not
> accessible.
> Solution:
> Assumption : Because the Map provided to the JSP page is to be readonly,
> instead of "implementing a map".
> Our fix was to return an Unmodifiable map (Jak commons) (and not have an
> internal implementation of a Map)
>
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