[jira] [Created] (OLINGO-137) FunctionImport returns null

[David Radenkov (JIRA)]

David Radenkov created OLINGO-137:
-------------------------------------

             Summary: FunctionImport returns null 
                 Key: OLINGO-137
                 URL: https://issues.apache.org/jira/browse/OLINGO-137
             Project: Olingo
          Issue Type: Bug
    Affects Versions: V2 1.0.0
            Reporter: David Radenkov


I have JPA-Entity "User" and I try to return it with FunctionImport:

@FunctionImport(name = "myFunc",entitySet = "User", returnType = 
ReturnType.ENTITY_TYPE , multiplicity = Multiplicity.ONE, httpMethod = 
@HttpMethod(name = Name.GET))
  public User currentUser(){
         User currentUser = getLoggedInUser();
              return currentUser;
  }

But the response  from that function is:

<error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata";>
<code/>
<message xml:lang="en">
An exception of type 'NullPointerException' occurred.
</message>
</error>

I have tried to chage the ReturnType and Multiplicity but the response was 
same. 
For example If I re-factor the function to return Integer and set the Return 
Type to SCALAR it works fine.



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