Teiid Connection Importer: IllegalArgumentException after obtaining the DDL from server --------------------------------------------------------------------------------------- Key: TEIIDDES-2456 URL: https://issues.jboss.org/browse/TEIIDDES-2456 Project: Teiid Designer Issue Type: Bug Components: Import/Export, Teiid Integration Affects Versions: 9.0.1 Reporter: Andrej Šmigala Assignee: Barry LaFond Labels: verified_jbdsis-8.0.2.CR3 Fix For: 9.1, 8.6.2 Beta1, 9.0.2, 8.6.2 Attachments: screenshot.png Import using Teiid Connection sometimes fails with the following error message after getting the DDL from server and clicking Next: {code} Error encountered while importing the DDL: "java.lang.IllegalArgumentException: Expected argument to be non-null but got null" {code} Stacktrace: {code} !ENTRY org.teiid.designer.ddl.importer.ui 4 0 2015-03-23 14:58:16.966 !MESSAGE Error encountered while importing the DDL: "java.lang.IllegalArgumentException: Expected argument to be non-null but got null" !STACK 0 java.lang.Exception: java.lang.IllegalArgumentException: Expected argument to be non-null but got null at org.teiid.core.designer.util.OperationUtil.perform(OperationUtil.java:54) at org.teiid.designer.ddl.importer.DdlImporter.importDdl(DdlImporter.java:101) at org.teiid.designer.ddl.importer.ui.DdlImportDifferencesPage$1.run(DdlImportDifferencesPage.java:225) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122) Caused by: java.lang.IllegalArgumentException: Expected argument to be non-null but got null at org.teiid.core.designer.util.CoreArgCheck.isNotNull(CoreArgCheck.java:142) at org.teiid.core.designer.util.CoreArgCheck.isNotNull(CoreArgCheck.java:128) at org.teiid.designer.core.ModelEditorImpl.getModelName(ModelEditorImpl.java:4971) at org.teiid.designer.relational.model.RelationalReferenceFactory.createRelationalModel(RelationalReferenceFactory.java:65) at org.teiid.designer.ddl.importer.DdlImporter.importDdl(DdlImporter.java:188) at org.teiid.designer.ddl.importer.DdlImporter$1.tryToDo(DdlImporter.java:117) at org.teiid.core.designer.util.OperationUtil.perform(OperationUtil.java:41) ... 3 more {code} (02:50:28 PM) blafond: I'll need a stack trace to figure it out (02:50:35 PM) blafond: check Designer's Error Log view? (02:50:39 PM) asmigala: the weird thing is, it sometimes works for the same data source (02:50:42 PM) asmigala: ok, hang on a sec (02:50:53 PM) asmigala: so this is not something we know about? (02:51:34 PM) blafond: not as a reproduceable bug. ... (02:59:47 PM) asmigala: also, when I copy the DDL, save it to a file and then use the DDL importer, it works correctlu 03:05:15 PM) blafond: I think it's a threading/timing issue. The RelationalReferenceFactory is assuming that the new EMF Model already created. Looks like it's still in the process "sometimes" and ends up failing. (03:05:45 PM) blafond: I noticed that we don't save the model right after we create it. Maybe that could fix the issue. (03:06:05 PM) blafond: Please log a JIRA/BZ and include all of this conversation (03:06:59 PM) asmigala: yes, that makes sense, I generally don't see it when stepping through the test