DB2 - Problembeschreibung
Problem IC70425 | Status: Geschlossen |
NULLREFERENCEEXCEPTION RETURNED WITH .NET ENTITY PROVIDER WITH V9.7 FP2 | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problembeschreibung: | |
Entity Data Model (EDM) generation from command line tools such as EdmGen.exe may fail with a NullReferenceException: "Object reference not set to an instance of an object" if the Entity provider is from DB2 v9.7 FP2 (IBM.Data.DB2.Entity). The EDM generation from EDM wizard will still work fine with this provider. This can be reproduced using the .NET Framework SDK utility called EdmGen.exe using a DB2 Connection string. The problem does not occur with either the DB2 v9.7 GA or DB2 v9.7 FP1 .NET Entity providers. The full exception call stack will look like this: ----- IBM.Data.DB2.Entity.dll!IBM.Data.DB2.Entity.DB2ProviderManifest. GetTableType(string TableTypesFilter = null, IBM.Data.DB2.Entity.DB2ProviderManifest.DbServerType dbs = LUW) + 0x87 bytes IBM.Data.DB2.Entity.dll!IBM.Data.DB2.Entity.DB2ProviderManifest. GetXmlResource(string resourceName = "IBM.Data.DB2.Entity.DB2StoreSchemaDefinitionForLUW.ssdl", IBM.Data.DB2.Entity.DB2ProviderManifest.DbServerType dbs = LUW) + 0x199 bytes IBM.Data.DB2.Entity.dll!IBM.Data.DB2.Entity.DB2ProviderManifest. a() + 0x106 bytes IBM.Data.DB2.Entity.dll!IBM.Data.DB2.Entity.DB2ProviderManifest. GetDbInformation(string informationType = "StoreSchemaDefinition") + 0x55 bytes System.Data.Entity.dll!System.Data.Common.DbProviderManifest.Get Information(string informationType = "StoreSchemaDefinition") Line 142 + 0x8 bytes C# System.Data.Entity.Design.dll!System.Data.Entity.Design.EntitySt oreSchemaGenerator.GetProviderSchemaMetadataWorkspace(System.Dat a.Common.DbProviderServices providerServices, System.Data.Common.DbConnection providerConnection = {IBM.Data.DB2.DB2Connection}) Line 299 + 0x21 bytes C# System.Data.Entity.Design.dll!System.Data.Entity.Design.EntitySt oreSchemaGenerator.CreateStoreSchemaConnection(string providerInvariantName, string connectionString) Line 277 + 0x9 bytes C# System.Data.Entity.Design.dll!System.Data.Entity.Design.EntitySt oreSchemaGenerator.EntityStoreSchemaGenerator(string providerInvariantName, string connectionString, string namespaceName) Line 63 + 0x1e bytes C# EdmGen.exe!System.Data.Entity.Design.EdmExe.EdmGen.GenerateSsdl( ) Line 221 + 0x50 bytes C# EdmGen.exe!System.Data.Entity.Design.EdmExe.EdmGen.DoFullGenerat ion() Line 135 + 0x6 bytes C# EdmGen.exe!System.Data.Entity.Design.EdmExe.EdmGen.Main(string[] args = {string[4]}) Line 347 + 0x6 bytes C# ----- | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * Entity Data Model (EDM) generation from command line tools * * such as EdmGen.exe may fail with a NullReferenceException: * * "Object reference not set to an instance of an object" if * * the Entity provider is from DB2 v9.7 FP2 * * (IBM.Data.DB2.Entity). * * * * The EDM generation from EDM wizard will still work fine with * * this provider. * * * * This can be reproduced using the .NET Framework SDK utility * * called EdmGen.exe using a DB2 Connection string. * * * * The problem does not occur with either the DB2 v9.7 GA or * * DB2 v9.7 FP1 .NET Entity providers. * * * * * * The exception call stack will look like this: * * ----- * * * * IBM.Data.DB2.Entity.dll!IBM.Data.DB2.Entity.DB2ProviderManifes * TableTypesFilter = null, * * IBM.Data.DB2.Entity.DB2ProviderManifest.DbServerType dbs = * * LUW) + 0x87 bytes * * * * * * IBM.Data.DB2.Entity.dll!IBM.Data.DB2.Entity.DB2ProviderManifes * resourceName = * * "IBM.Data.DB2.Entity.DB2StoreSchemaDefinitionForLUW.ssdl", * * IBM.Data.DB2.Entity.DB2ProviderManifest.DbServerType dbs = * * UW) + 0x199 bytes * * * * IBM.Data.DB2.Entity.dll!IBM.Data.DB2.Entity.DB2ProviderManifes * + 0x106 bytes * * * * IBM.Data.DB2.Entity.dll!IBM.Data.DB2.Entity.DB2ProviderManifes * informationType = "StoreSchemaDefinition") + 0x55 bytes * * * * System.Data.Entity.dll!System.Data.Common.DbProviderManifest.G * informationType = "StoreSchemaDefinition") Line 142 + 0x8 * * bytes * * ----- * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 LUW v9.7 Fixpak 3a * **************************************************************** | |
Local-Fix: | |
verfügbare FixPacks: | |
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows | |
Lösung | |
Problem was first fixed in Version 9.7 Fix Pack 3a | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 05.08.2010 08.11.2010 08.11.2010 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.7., 9.7.FP3 | |
Problem behoben lt. FixList in der Version |