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https://issues.apache.org/jira/browse/WW-3850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13876207#comment-13876207
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Sanket Meghani commented on WW-3850:
------------------------------------
By validators I mean, validation rules defined for a field in <Action
Class>-validation.xml. I think what it is trying to do is get a list of
validations defined for a field in <Action Class>-validation.xml and apply it
manually. Which I think is not needed at all, the framework should do it
automatically as long as I understand.
> NullPointerException loading xwork validator since 2.3.4
> --------------------------------------------------------
>
> Key: WW-3850
> URL: https://issues.apache.org/jira/browse/WW-3850
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 2.3.4
> Reporter: Eric Chatellier
> Assignee: Lukasz Lenart
> Labels: xwork
> Fix For: 2.3.7
>
> Attachments: WW-3850.diff
>
>
> Since 2.3.4 update, loading xworks validator with
> ActionValidatorManager#getValidators(Class, null) cause
> null pointer exception.
> Here is the stack trace:
> {code}Caused by: java.lang.NullPointerException
> at
> com.opensymphony.xwork2.validator.DefaultActionValidatorManager.loadFile(DefaultActionValidatorManager.java:330)
> at
> com.opensymphony.xwork2.validator.DefaultActionValidatorManager.buildClassValidatorConfigs(DefaultActionValidatorManager.java:237)
> at
> com.opensymphony.xwork2.validator.DefaultActionValidatorManager.buildValidatorConfigs(DefaultActionValidatorManager.java:316)
> at
> com.opensymphony.xwork2.validator.DefaultActionValidatorManager.buildValidatorConfigs(DefaultActionValidatorManager.java:297)
> at
> com.opensymphony.xwork2.validator.DefaultActionValidatorManager.buildValidatorConfigs(DefaultActionValidatorManager.java:297)
> at
> com.opensymphony.xwork2.validator.DefaultActionValidatorManager.getValidators(DefaultActionValidatorManager.java:82)
> at
> com.opensymphony.xwork2.validator.DefaultActionValidatorManager.getValidators(DefaultActionValidatorManager.java:74){code}
> The error occurs when following code is executed:
> {code}URL fileUrl = ClassLoaderUtil.getResource(fileName, clazz);
> if ((checkFile && fileManager.fileNeedsReloading(fileUrl.toString())) ||
> !validatorFileCache.containsKey(fileName)) {{code}
> with fileName = Object-validation.xml
> this file doesn't exists, so getResource returns null.
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