[jbosstools-issues] [JBoss JIRA] (JBIDE-17877) Classe with unbounded type parameter triggers "TypeParameter cannot be cast to IType" exceptions

[Xavier Coulon (JIRA)]

     [ https://issues.jboss.org/browse/JBIDE-17877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xavier Coulon reassigned JBIDE-17877:
-------------------------------------

    Assignee: Denis Golovin  (was: Xavier Coulon)


[~dgolovin],

I tried again today on 'master' branch with the following class (as shown in JBIDE-17716):

{code}
package jaxrs;

import java.util.ArrayList;
import java.util.List;

import javax.ejb.Stateless;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

@Stateless
@Path("/path")
public class Converter<T> {
	@GET
	@Produces(MediaType.APPLICATION_JSON)
	public List<T> getConverter() { 
		return new ArrayList<T>();
	}

}
{code}

and I don't get any error when the validation occurs. Do I miss something or can we mark this issue as resolved ?

> Classe with unbounded type parameter triggers "TypeParameter cannot be cast to IType" exceptions
> ------------------------------------------------------------------------------------------------
>
>                 Key: JBIDE-17877
>                 URL: https://issues.jboss.org/browse/JBIDE-17877
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: webservices
>    Affects Versions: 4.2.0.Beta3
>            Reporter: Denis Golovin
>            Assignee: Denis Golovin
>             Fix For: 4.2.0.CR1
>
>
> Exception below was fixed by checking instance of target obect before casting to IType see JBIDE-17716 and skipping the rest of the code.
> Do we need to do something extra in this case?
> {code}
> org.jboss.tools.common
> Error
> Mon Jun 30 12:28:44 CEST 2014
> org.eclipse.jdt.internal.core.TypeParameter cannot be cast to org.eclipse.jdt.core.IType
> org.jboss.tools.common.validation.JBTValidationException: org.eclipse.jdt.internal.core.TypeParameter cannot be cast to org.eclipse.jdt.core.IType
> 	at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:187)
> 	at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:205)
> 	at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:200)
> 	at org.jboss.tools.common.validation.java.JavaDirtyRegionProcessor.endProcessing(JavaDirtyRegionProcessor.java:498)
> 	at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:697)
> Caused by: java.lang.ClassCastException: org.eclipse.jdt.internal.core.TypeParameter cannot be cast to org.eclipse.jdt.core.IType
> 	at org.jboss.tools.ws.jaxrs.core.jdt.SourceType.from(SourceType.java:79)
> 	at org.jboss.tools.ws.jaxrs.core.jdt.JdtUtils.getReturnType(JdtUtils.java:1143)
> 	at org.jboss.tools.ws.jaxrs.core.jdt.JdtUtils.resolveMethodSignature(JdtUtils.java:1067)
> 	at org.jboss.tools.ws.jaxrs.core.jdt.JdtUtils.resolveMethodSignatures(JdtUtils.java:1037)
> 	at org.jboss.tools.ws.jaxrs.core.jdt.CompilationUnitsRepository.recordAST(CompilationUnitsRepository.java:112)
> 	at org.jboss.tools.ws.jaxrs.core.jdt.CompilationUnitsRepository.getAST(CompilationUnitsRepository.java:76)
> 	at org.jboss.tools.ws.jaxrs.ui.internal.validation.JaxrsMetamodelValidator.validate(JaxrsMetamodelValidator.java:413)
> 	at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:183)
> 	... 4 more
> {code}



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