Dave, what version of mono are you using?
If you cannot reproduce these problems reliably when dealing with SOAP
deserialization, you may be hitting a concurrency bug fixed in here:
https://github.com/mono/mono/commit/9a8ed89
On 09/01/13 18:18, Dave Curylo wrote:
For what it's worth, I get these exceptions from time to time
deserializing SOAP responses. It's difficult for me to file a test case
for this as the exact same response will not always result in this
exception. It's a sporadic issue for me but it seems to be a problem in
generating the serializer classes.
In most cases, I have to just catch the exception and work around it by
retrieving the response data from the service again.
Hopefully Esben's case is a little more straight forward and he can
reproduce it reliably.
On Wednesday, January 9, 2013, Andres G. Aragoneses wrote:
On 09/01/13 17:21, Esben Laursen wrote:
Hi All,
I sometimes get this execption to the console on my app. I have not
really identified what part of my code that is generating the
exception
(I use xml serializers extensively). The app does not crash and I am
fairly sure that I have wrapped all the parts of my code in a
try/catch..
Here is the output to the console.
Serializer could not be generated
System.NullReferenceException: Object reference not set to an
instance
of an object
at System.Xml.Serialization.__TypeData.ToCSharpName
(System.Type type,
Boolean full) [0x00000] in <filename unknown>:0
at System.Xml.Serialization.__TypeData.get_CSharpFullName ()
[0x00000]
in <filename unknown>:0
at
System.Xml.Serialization.__SerializationCodeGenerator.__GenerateReadObject
(System.Xml.Serialization.__XmlTypeMapping typeMap) [0x00000] in
<filename
unknown>:0
at
System.Xml.Serialization.__SerializationCodeGenerator.__GenerateReader
(System.String readerClassName, System.Collections.ArrayList maps)
[0x00000] in <filename unknown>:0
at
System.Xml.Serialization.__SerializationCodeGenerator.__GenerateSerializers
(System.IO.TextWriter writer) [0x00000] in <filename unknown>:0
at
System.Xml.Serialization.__XmlSerializer.__GenerateSerializers
(System.Xml.Serialization.__GenerationBatch batch,
System.CodeDom.Compiler.__CompilerParameters cp) [0x00000] in
<filename
unknown>:0
I am running mono 3.0.1 complied from source on a Fedora Core..
Can any of you guys identify if this is a "bug" in mono or in my
code..
(and yes I might send something "wrong" into the serializer :-)
Hope you can help..
No matter how wrong you think the value to the serializer is, a
NullReferenceException should never be generated from inside any
class library, so this is likely a mono bug. File it with a minimal
testcase in http://bugzilla.xamarin.com/
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