activityVariable invalid Json

Hello there

I’m using a local variable of type java.util.List named **vkpResult ** .
When I access it from Rest API engine produces invalid Json (missing closing ‘}’).
List size plays no role. I tryed with 1 element and with 100.

http://localhost:34435/bonita/API/bpm/activityVariable/120010/vkpResult

{"name":"vkpResult","description":null,"transientData":false,"className":"java.util.List","containerType":"ACTIVITY_INSTANCE","tenantId":0,"tenantId_string":"0","id":15019,"id_string":"15019","containerId":120010,"containerId_string":"120010","value":[{"productId":166,"nameIntern":"Kontokorrent","nameExtern":"Kontokorrent"}]

Is it a bug?

Foud a bug report, that says it is not a bug but a feature. …well.
https://bonita.atlassian.net/browse/BBPMC-502?filter=-4&jql=text%20~%20"json%20list"%20order%20by%20created%20DESC