Upload of Execution results fails with a NullPointerException

Upload of Execution results fails with a NullPointerException.

When upload results to a Test that has an unexpected Test Type (for instance "None"), Xray will return an error.

To reproduce it:

1. Import this file to your Jira instance result-2.xml

   1. curl -H "Content-Type: multipart/form-data" -u admin:admin -F "file=@result-2.xml" http://localhost:8160/rest/raven/1.0/import/execution/junit?projectKey=DAVZ2
      

1. Go to your custom fields configuration http://localhost:8160/secure/admin/ViewCustomFields.jspa and "configure" Test Type
2. Edit the options. You have 2 options:
   1. Delete the Generic option from your context, Jira will warn you about all the Issues that will lose value;
   2. Another way is to create a new Test Type in the options and change only one of the tests imported to that test type and then only delete this new test type;
3. Repeat Step 1. You now have this message as a Response:

   {"error":"An exception occurred while handling a v2 REST API request: java.lang.NullPointerException"}

1. Check the atlassian-jira.log

   2021-09-23 18:15:30,137+0100 http-nio-8160-exec-11 ERROR admin 1095x258577x1 4n81pk 0:0:0:0:0:0:0:1 /rest/raven/1.0/import/execution/junit [c.x.r.rest.a.a] An exception occurred while handling a REST API request:
   java.lang.NullPointerException
   	at com.xpandit.raven.rest.api.helper.impl.RequestValidationHelperImpl.a(Unknown Source)
   	at com.xpandit.raven.rest.api.helper.impl.RequestValidationHelperImpl.a(Unknown Source)
   	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
   	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
   	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)