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

[dalex dalex (JIRA)]

dalex dalex created TEIID-5183:
----------------------------------

             Summary: 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


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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