MongoDB import fails when collection contains an empty array ------------------------------------------------------------ Key: TEIID-5766 URL: https://issues.jboss.org/browse/TEIID-5766 Project: Teiid Issue Type: Bug Components: Server Affects Versions: 8.12.17.6_4 Reporter: Marc Shirley Assignee: Steven Hawkins Priority: Major Fix For: 12.3, 8.12.19.6_4 MongoDB import fails with error like [1] when collection returns an empty array in the first doc. [1] 14:32:38,167 WARN [org.teiid.RUNTIME] (teiid-async-threads - 1) TEIID50036 VDB importVDB.1 model "importVDBSrcModel" metadata failed to load. Reason:Index: 0, Size: 0: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 at java.util.ArrayList.rangeCheck(ArrayList.java:657) [rt.jar:1.8.0_171] at java.util.ArrayList.get(ArrayList.java:433) [rt.jar:1.8.0_171] at org.teiid.translator.mongodb.MongoDBMetadataProcessor.addColumn(MongoDBMetadataProcessor.java:149) at org.teiid.translator.mongodb.MongoDBMetadataProcessor.addTable(MongoDBMetadataProcessor.java:115) at org.teiid.translator.mongodb.MongoDBMetadataProcessor.process(MongoDBMetadataProcessor.java:72) at org.teiid.translator.mongodb.MongoDBMetadataProcessor.process(MongoDBMetadataProcessor.java:48) at org.teiid.translator.ExecutionFactory.getMetadata(ExecutionFactory.java:950) [teiid-api-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2] at org.teiid.query.metadata.NativeMetadataRepository.getMetadata(NativeMetadataRepository.java:96) [teiid-engine-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2] at org.teiid.query.metadata.NativeMetadataRepository.loadMetadata(NativeMetadataRepository.java:62) [teiid-engine-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2] at org.teiid.query.metadata.ChainingMetadataRepository.loadMetadata(ChainingMetadataRepository.java:55) [teiid-engine-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2] at org.teiid.jboss.VDBService$6.run(VDBService.java:395) [teiid-jboss-integration-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2] at org.teiid.jboss.VDBService$7.run(VDBService.java:446) [teiid-jboss-integration-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_171] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_171] at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_171] at org.jboss.threads.JBossThread.run(JBossThread.java:122)