[teiid-issues] [JBoss JIRA] (TEIID-5183) NPE in Swagger translator

[dalex dalex (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-5183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13512356#comment-13512356 ] 

dalex dalex edited comment on TEIID-5183 at 1/10/18 6:03 AM:
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Actually my Teiid 9.3.4 contained not only changed from the issue but also from another ones, maybe it caused such strange behavior which you can't reproduce. Thank you for your additional checks, let's assume that clean 9.3.4 doesn't have problems related to null values.


was (Author: dalex005):
Actually my Teiid 9.3.4 contained not only changed from the issue but also from another ones, maybe it caused such strange behavior which I can't reproduce. Thank you for your additional checks, let's assume that clean 9.3.4 doesn't have problems related to null values.

> NPE in Swagger translator
> -------------------------
>
>                 Key: TEIID-5183
>                 URL: https://issues.jboss.org/browse/TEIID-5183
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 9.3.4
>         Environment: teiid-9.3.4 on WildFly Full 10.0.0.Final (WildFly Core 2.0.10.Final)
>            Reporter: dalex dalex
>            Assignee: Steven Hawkins
>             Fix For: 10.1, 9.3.6, 10.0.2
>
>         Attachments: swagger_null_values.jpg
>
>
> When using the http://api.apis.guru/v2/specs/azure.com/redis/2017-10-01/ link as an endpoint for swagger resource adapter Teiid throws up the following error message (in bootstrapping phase), though with http://petstore.swagger.io/v2 endpoint according to the https://teiid.gitbooks.io/documents/reference/Swagger_Translator.html documentation the translator works:
> {code:noformat}
> 2017-12-18 16:14:43,975 WARN  [org.teiid.RUNTIME] (Worker1_async-teiid-threads1)  TEIID50036 VDB test.1 model "mswagger" metadata failed to load. Reason:java.lang.NullPointerExceptio
> n: java.lang.NullPointerException
>         at org.teiid.metadata.MetadataFactory.setUUID(MetadataFactory.java:155)
>         at org.teiid.metadata.MetadataFactory.addProcedureParameter(MetadataFactory.java:421)
>         at org.teiid.translator.swagger.SwaggerMetadataProcessor.addProcedureParameters(SwaggerMetadataProcessor.java:560)
>         at org.teiid.translator.swagger.SwaggerMetadataProcessor.addProcedure(SwaggerMetadataProcessor.java:261)
>         at org.teiid.translator.swagger.SwaggerMetadataProcessor.process(SwaggerMetadataProcessor.java:206)
>         at org.teiid.translator.swagger.SwaggerMetadataProcessor.process(SwaggerMetadataProcessor.java:74)
>         at org.teiid.translator.ExecutionFactory.getMetadata(ExecutionFactory.java:961)
>         at org.teiid.query.metadata.NativeMetadataRepository.getMetadata(NativeMetadataRepository.java:96)
>         at org.teiid.query.metadata.NativeMetadataRepository.loadMetadata(NativeMetadataRepository.java:62)
>         at org.teiid.query.metadata.ChainingMetadataRepository.loadMetadata(ChainingMetadataRepository.java:55)
>         at org.teiid.jboss.VDBService$6.run(VDBService.java:341)
>         at org.teiid.jboss.VDBService$7.run(VDBService.java:392)
>         at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284)
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>         at java.lang.Thread.run(Thread.java:745)
> {code}
> The http://api.apis.guru/v2/specs/azure.com/redis/2017-10-01/ endpoint supports swagger API according to the https://apis.guru/browse-apis/ link and I can see json output when requesting the http://api.apis.guru/v2/specs/azure.com/redis/2017-10-01/swagger.json link. Probably the NPE appears because of RefParameter type which is not handled in SwaggerMetadataProcessor.addProcedureParameters method which leads to name = null.



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