[jbosstools-issues] [JBoss JIRA] (JBIDE-18747) NPE in CDI (probably) Validation

[Victor Rubezhny (JIRA)]

     [ https://issues.jboss.org/browse/JBIDE-18747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Victor Rubezhny updated JBIDE-18747:
------------------------------------
    Assignee: Alexey Kazakov


> NPE in CDI (probably) Validation
> --------------------------------
>
>                 Key: JBIDE-18747
>                 URL: https://issues.jboss.org/browse/JBIDE-18747
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: cdi, jsp/jsf/xml/html source editing
>    Affects Versions: 4.2.0.Final
>            Reporter: Victor Rubezhny
>            Assignee: Alexey Kazakov
>
> In some cases, when you're editing HTML Validation Preferences and agree to perform a build on pressing 'Apply' and then immediately do the same on pressing 'OK' button, an NPE occurs in Validation:
> {code}
> !ENTRY org.jboss.tools.common 4 0 2014-11-13 02:17:31.326
> !MESSAGE 
> !STACK 0
> org.jboss.tools.common.validation.JBTValidationException
> 	at org.jboss.tools.common.validation.ValidatorManager.validate(ValidatorManager.java:123)
> 	at org.jboss.tools.common.validation.ValidatorManager.validateInJob(ValidatorManager.java:81)
> 	at org.eclipse.wst.validation.internal.core.ValidatorLauncher.start(ValidatorLauncher.java:77)
> 	at org.eclipse.wst.validation.Validator$V1.validate(Validator.java:768)
> 	at org.eclipse.wst.validation.Validator.validate(Validator.java:405)
> 	at org.eclipse.wst.validation.internal.ValManager.validate(ValManager.java:704)
> 	at org.eclipse.wst.validation.internal.ValManager$1.visit(ValManager.java:665)
> 	at org.eclipse.wst.validation.internal.ValManager.accept(ValManager.java:783)
> 	at org.eclipse.wst.validation.internal.ValManager.validate(ValManager.java:669)
> 	at org.eclipse.wst.validation.internal.ValidationRunner.execute(ValidationRunner.java:134)
> 	at org.eclipse.wst.validation.internal.ValidationRunner.run(ValidationRunner.java:148)
> 	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313)
> 	at org.eclipse.wst.validation.internal.ValidationRunner.validate(ValidationRunner.java:67)
> 	at org.eclipse.wst.validation.ValidationFramework.validate(ValidationFramework.java:661)
> 	at org.eclipse.wst.sse.ui.internal.preferences.ui.AbstractValidationSettingsPage$ValidateJob.run(AbstractValidationSettingsPage.java:411)
> 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
> Caused by: java.lang.NullPointerException
> 	at org.jboss.tools.common.validation.ValidatorManager.validate(ValidatorManager.java:116)
> 	... 15 more
> {code}
> Some debugging shows that NPE happens when validator is CDICoreValidator object: the following expression: 
> {code}validationHelper.getValidationContextManager().getValidatingProjectTree(validator){code}, and that value is used with no any checks for that.



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