[jira] [Created] (NIFI-7682) Nifi web api crashes on empty payload to versions/active-requests

["Karthikeyan Singaravelan (Jira)" <ji...@apache.org>]

Karthikeyan Singaravelan created NIFI-7682:
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             Summary: Nifi web api crashes on empty payload to versions/active-requests
                 Key: NIFI-7682
                 URL: https://issues.apache.org/jira/browse/NIFI-7682
             Project: Apache NiFi
          Issue Type: Bug
          Components: Flow Versioning
    Affects Versions: 1.11.4
            Reporter: Karthikeyan Singaravelan


There is a crash in the nifi web api on posting empty payload via curl to versions/active-requests endpoint. It seems the request is not validated to be null and causes NullPointerException.

There should be a null check to throw exception stating request should not be empty before getting group ID at [https://github.com/apache/nifi/blob/4d940bb151eb8d250b0319318b96d23c4a9819ae/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-api/src/main/java/org/apache/nifi/web/api/VersionsResource.java#L263] .

I would like to contribute a patch to nifi with the fix that I have already tested manually. I am a new contributor so any help on this will be appreciated.

*Curl request :*
{code:java}
 $ curl -X POST http://localhost:8080/nifi-api/versions/active-requests
 An unexpected error has occurred. Please check the logs for additional details{code}
*Error log :*
{code:java}
2020-07-28 12:26:50,706 ERROR [NiFi Web Server-27] o.a.nifi.web.api.config.ThrowableMapper An unexpected error has occurred: java.lang.NullPointerException. Returning Internal Server Error response.
java.lang.NullPointerException: null
	at org.apache.nifi.web.api.VersionsResource.createVersionControlRequest(VersionsResource.java:263)
{code}
 



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