[jbosstools-issues] [JBoss JIRA] (JBIDE-19734) JAX-RS Validator NPEs with wildcard type arguments

[Brian Fitzpatrick (JIRA)]

    [ https://issues.jboss.org/browse/JBIDE-19734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13066481#comment-13066481 ] 

Brian Fitzpatrick commented on JBIDE-19734:
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[~xcoulon] Can you take a look at this one?

> JAX-RS Validator NPEs with wildcard type arguments
> --------------------------------------------------
>
>                 Key: JBIDE-19734
>                 URL: https://issues.jboss.org/browse/JBIDE-19734
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: webservices
>         Environment: Eclipse Mars, JDK 1.7 32-bit
>            Reporter: Kory Markevich
>            Assignee: Xavier Coulon
>
> JBoss JAX-RS Tools feature version:   1.8.0.Beta1-v20150417-0152-B698
> The JAX-RS validator throws an NPE when using generic types with wildcards. Specifically, the call to typeArgumentBinding.getJavaElement() in SourceType.from(VariableDeclaration) can return null, which the SourceType constructor then tries to use, resulting in the following stack trace. Depending on the code, the validator could trigger this exception as frequently as every pause in typing, resulting in a modal error box popping up constantly. The sample code provided only triggers it on save though.
> java.lang.NullPointerException
> 	at org.jboss.tools.ws.jaxrs.core.jdt.SourceType.<init>(SourceType.java:157)
> 	at org.jboss.tools.ws.jaxrs.core.jdt.SourceType.from(SourceType.java:49)
> 	at org.jboss.tools.ws.jaxrs.core.jdt.JdtUtils.resolveMethodSignature(JdtUtils.java:1109)
> 	at org.jboss.tools.ws.jaxrs.core.internal.metamodel.domain.JaxrsResource$Builder.build(JaxrsResource.java:169)
> 	at org.jboss.tools.ws.jaxrs.core.internal.metamodel.domain.JaxrsResource.update(JaxrsResource.java:273)
> 	at org.jboss.tools.ws.jaxrs.core.internal.metamodel.domain.JaxrsMetamodel.processJavaElement(JaxrsMetamodel.java:647)
> 	at org.jboss.tools.ws.jaxrs.core.internal.metamodel.domain.JaxrsMetamodel.processResourceChange(JaxrsMetamodel.java:608)
> 	at org.jboss.tools.ws.jaxrs.core.internal.metamodel.domain.JaxrsMetamodel.processAffectedResources(JaxrsMetamodel.java:574)
> 	at org.jboss.tools.ws.jaxrs.core.internal.metamodel.builder.ResourceChangedBuildJob.run(ResourceChangedBuildJob.java:77)
> 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)



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