[ http://issues.apache.org/jira/browse/TAPESTRY-701?page=all ]
Howard M. Lewis Ship updated TAPESTRY-701:
------------------------------------------
Summary: NPE creating a link from pageValidate() when there are
client-persistent properties with page scope (was: NullPointerException in
PageClientPropertyPersistenceScope when using 'client' persistence strategy and
executing a ServiceLink)
Priority: Major (was: Minor)
> NPE creating a link from pageValidate() when there are client-persistent
> properties with page scope
> ---------------------------------------------------------------------------------------------------
>
> Key: TAPESTRY-701
> URL: http://issues.apache.org/jira/browse/TAPESTRY-701
> Project: Tapestry
> Type: Bug
> Components: Framework
> Versions: 4.0
> Environment: WinXP Pro, JBOSS 4.0.3RC1
> Reporter: Scott Jarvi
> Assignee: Howard M. Lewis Ship
>
> A page that's using the 'client' persistence strategy for one of its
> properties includes a ServiceLink that triggers a subclass of RestartService.
> The service logs the user out, invalidates the session and then tries to
> redirect the user back to the 'Home' page, using HomeService.getLink().
> However, trying to get the link from the HomeService resulted in a NPE...
> org.apache.tapestry.record.PageClientPropertyPersistenceScope.shouldEncodeState(PageClientPropertyPersistenceScope.java:45)
> $ClientPropertyPersistenceScope_106dad08dcb.shouldEncodeState($ClientPropertyPersistenceScope_106dad08dcb.java)
> org.apache.tapestry.record.ClientPropertyPersistenceStrategy.addParametersForPersistentProperties(ClientPropertyPersistenceStrategy.java:136)
> $PropertyPersistenceStrategy_106dad08dc7.addParametersForPersistentProperties($PropertyPersistenceStrategy_106dad08dc7.java)
> $PropertyPersistenceStrategy_106dad08dc8.addParametersForPersistentProperties($PropertyPersistenceStrategy_106dad08dc8.java)
> org.apache.tapestry.record.PropertyPersistenceStrategySourceImpl.addParametersForPersistentProperties(PropertyPersistenceStrategySourceImpl.java:99)
> $PropertyPersistenceStrategySource_106dad08d18.addParametersForPersistentProperties($PropertyPersistenceStrategySource_106dad08d18.java)
> org.apache.tapestry.services.impl.LinkFactoryImpl.constructLink(LinkFactoryImpl.java:112)
> $LinkFactory_106dad08ca2.constructLink($LinkFactory_106dad08ca2.java)
> org.apache.tapestry.engine.HomeService.getLink(HomeService.java:58)
> (rest of stack trace omitted)
> It seems that the NullPointer is caused by a null IPage in the RequestCycle,
> which PageClientPropertyPersistenceScope tries to check to determine if
> encoding should be applied.
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