|
Problem IC70425
|
Status: Closed |
NULLREFERENCEEXCEPTION RETURNED WITH .NET ENTITY PROVIDER WITH V9.7 FP2 |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| 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 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 Summary: |
****************************************************************
* 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: |
|
| available fix packs: |
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
Problem was first fixed in Version 9.7 Fix Pack 3a |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 05.08.2010
08.11.2010
08.11.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.,
9.7.FP3
|
| Problem solved according to the fixlist(s) of the following version(s) |
