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https://issues.apache.org/jira/browse/WW-5387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Lenart resolved WW-5387.
-------------------------------
Resolution: Fixed
> ApplicationMap.remove does not remove the entry from the ServletContext
> -----------------------------------------------------------------------
>
> Key: WW-5387
> URL: https://issues.apache.org/jira/browse/WW-5387
> Project: Struts 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 6.2.0, 6.3.0
> Reporter: Jon Pulice
> Priority: Minor
> Fix For: 6.4.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> When implementing {{ApplicationAware}} in an action, and calling
> {{remove(key)}} on the injected Map, the removed object reappears on
> subsequent actions, and the object is not removed from the ServletContext
> (implementing a ServletContextAttributeListener will show that only "added"
> and "replaced" events are triggered, but not "removed" events)
>
>
> {code:java}
> public class TestAction extends ActionSupport implements ApplicationAware {
>
> public static final String APPLICATION_MAP_TEST_KEY =
> "com.testing.application.key";
> private Map<String, Object> applicationMap;
>
> @Override
> public void withApplication(Map<String, Object> applicationMap) {
> this.applicationMap = applicationMap;
> }
> protected void testPutToApplicationMap() {
> applicationMap.put(APPLICATION_MAP_TEST_KEY, "Test application map
> value"); //This works fine
> }
>
> protected Object testRemoveFromApplicationMap() {
> return applicationMap.remove(APPLICATION_MAP_TEST_KEY); //Does not
> work
> }
> ...
> } {code}
>
>
> The issue appears to be the change to the remove method signature in WW-5196
> so that it no longer implements the Map interface (which specifies an
> argument of Object, not String)
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