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Namespace for [DataContract]

I can't find the namespace to use for [DataContract] and [DataMember] elements. According to what I've found, it seems that adding the following should be enough, but in my case it is not. ...
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Including jars in classpath on commandline (javac or apt)

trying to run this program. I think that to setup all of the web service stuff I need to run apt. (Although using javac I am having the same issue). I think what I am getting is compile errors. (Shown at bottom). ...
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How to get Top 5 records in SqLite?

I have tried this which did not work. 6 Answers 6 ...
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Parallel.ForEach() vs. foreach(IEnumerable.AsParallel())

Erg, I'm trying to find these two methods in the BCL using Reflector, but can't locate them. What's the difference between these two snippets? ...
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Is there a CSS selector for text nodes?

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Error during SSL Handshake with remote server

I have Apache2 (listening on 443) and a web app running on Tomcat7 (listening on 8443) on Ubuntu . 3 Answers ...
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Swift variable decorations with “?” (question mark) and “!” (exclamation mark)

...ift all variables must be set with a value, and that by using optionals we can set a variable to be set to nil initially. ...
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Persistent invalid graphics state error when using ggplot2

I believe my dataframe is okay and my code is okay. In fact, I have eliminated parts of the dataframe and most of the graphing code to make things as basic as possible. But still, I get: ...
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Enumerable.Empty() equivalent for IQueryable

...od returns IEnumerable<T> and I do not have anything to return, we can use Enumerable.Empty<T>() . 5 Answers...
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Can bash show a function's definition?

Is there a way to view a bash function's definition in bash? 4 Answers 4 ...