OpenSAML user discussion

["Subash Devkota" <>]

Hi all,

I want to test and implement  openSAML API. I have got the jar and code. 
But, I am getting problem how to start using it. I could not find any 
good tutorial or example for simply creating  SAML objects and writing 
to xml.

I found one example code from
https://spaces.internet2.edu/display/SHIB/OSTwoUsrManJavaCreateFromScratch
but got error using it.

> public static void main(String args[]) throws Exception{
>       
> //             Get the builder factory
>           XMLObjectBuilderFactory builderFactory = 
> Configuration.getBuilderFactory();
>           
>           // Get the subject builder based on the subject element name
>           SubjectBuilder builder = (SubjectBuilder ) 
> builderFactory.getBuilder(Subject.DEFAULT_ELEMENT_NAME);
>           
>           System.out.println("subject builder is :"+builder);
>           // Create the subject
>           Subject subject = (Subject)builder.buildObject();
I got builder value in second step as null and get NullPointerException 
in third step as shown below:

> subject builder is :null
> Exception in thread "main" java.lang.NullPointerException

Can any one help me how to do it. Also, I would be grateful if anyone 
can show me the best example or tutorial for getting started with openSAML.

Thanks in advance
Subash 


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