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Posted to dev@velocity.apache.org by "Nathan Bubna (JIRA)" <de...@velocity.apache.org> on 2010/10/15 22:47:33 UTC
[jira] Resolved: (VELTOOLS-130) ViewToolManager constructor
ViewToolManager(servletContext) throws NPE always
[ https://issues.apache.org/jira/browse/VELTOOLS-130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nathan Bubna resolved VELTOOLS-130.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.x
2.0.x
Nice catch. I'm sorry to admit, i've never tried ViewToolManager with autoconfig as true. I just committed a fix. You can build from the trunk or wait for the next release. And no, i don't know when that will be. :)
> ViewToolManager constructor ViewToolManager(servletContext) throws NPE always
> -----------------------------------------------------------------------------
>
> Key: VELTOOLS-130
> URL: https://issues.apache.org/jira/browse/VELTOOLS-130
> Project: Velocity Tools
> Issue Type: Bug
> Components: VelocityView
> Affects Versions: 2.0
> Environment: Ubuntu 10.10, JDK 1.6.21, Tomcat 6.0.20
> Reporter: Robert Brandner
> Priority: Minor
> Fix For: 2.0.x, 2.x
>
>
> Invoking the constructor ViewToolManager(servletContext) always fails with an NPE. The reason for this is, that it invokes super(true, true) before setting the member variable servletContext with the provided servletContext.
> The parent class' constructor invokes autoConfigure(true) which invokes ServletUtils.getConfiguration(servletPath). At this moment servletPath can only be null as it is not set yet. And that finally leads to a NPE in the first line of the getConfiguration method:
> Object obj = application.getAttribute(CONFIGURATION_KEY);
> Workaround: Use a constructor without autoconfiguration and invoke autoConfigure(true) afterwards.
> ViewToolManager vm = new ViewToolmanager(servletContext, false, false);
> vm.autoConfigure(true);
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