[jbosstools-issues] [JBoss JIRA] (JBIDE-18117) Unable to remove the JAX-RS facet on a Dynamic Web Project version 3.1

[Xavier Coulon (JIRA)]

    [ https://issues.jboss.org/browse/JBIDE-18117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12997767#comment-12997767 ] 

Xavier Coulon commented on JBIDE-18117:
---------------------------------------

The problem does not occur when the project had a "Dynamic Web Project version *3.0*" facet before. Make sure the project is created with facet version *3.1*

> Unable to remove the JAX-RS facet on a Dynamic Web Project version 3.1
> ----------------------------------------------------------------------
>
>                 Key: JBIDE-18117
>                 URL: https://issues.jboss.org/browse/JBIDE-18117
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: upstream, webservices
>    Affects Versions: 4.2.0.Beta3
>            Reporter: Xavier Coulon
>            Assignee: Xavier Coulon
>             Fix For: 4.2.1.Final, 4.3.0.Alpha1
>
>
> A bug in Eclipse WTP causes the following exception:
> {code}
> java.lang.ClassCastException: org.eclipse.jst.javaee.web.internal.impl.WebAppImpl cannot be cast to org.eclipse.jst.j2ee.webapplication.WebApp
> 	at org.eclipse.jst.ws.jaxrs.core.internal.project.facet.JAXRSFacetUninstallDelegate.uninstallJAXRSReferencesFromWebApp(JAXRSFacetUninstallDelegate.java:116)
> 	at org.eclipse.jst.ws.jaxrs.core.internal.project.facet.JAXRSFacetUninstallDelegate.execute(JAXRSFacetUninstallDelegate.java:85)
> 	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.callDelegate(FacetedProject.java:1477)
> 	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.modifyInternal(FacetedProject.java:441)
> 	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.mergeChangesInternal(FacetedProject.java:1181)
> 	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.access$2(FacetedProject.java:1117)
> 	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject$5.run(FacetedProject.java:1099)
> 	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313)
> 	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.mergeChanges(FacetedProject.java:1109)
> 	at org.eclipse.wst.common.project.facet.core.internal.FacetedProjectWorkingCopy.commitChanges(FacetedProjectWorkingCopy.java:2020)
> 	at org.eclipse.wst.common.project.facet.ui.internal.FacetsPropertyPage$4.run(FacetsPropertyPage.java:232)
> 	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313)
> 	at org.eclipse.wst.common.project.facet.ui.internal.FacetsPropertyPage$5.run(FacetsPropertyPage.java:246)
> 	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)
> {code}
> the problem comes from an evaluation that checks for dynamic project facet version 2.5 or 3.0 but not higher, in {{JAXRSJEEUtils#isWebApp25or40(Object)}}



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