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.