GHSA-8HMH-MHQV-7638 PartialBufferOutputStream2 flush issues

Withdrawn This advisory has been withdrawn as there the effects of the bug would only give the caller an incomplete view of data which they would be authorized to see. Original Advisory PartialBufferOutputStream2 in GeoServer before 1.6.1 and 1.7.0-beta1 attempts to flush buffer contents even whe...