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

[Kory Markevich (JIRA)]

Kory Markevich created JBIDE-19734:
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             Summary: 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


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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