Github user greghogan commented on the issue:
https://github.com/apache/flink/pull/5205
@StephanEwen of the five occurrences in `MemoryManager`,
`ChannelWriterOutputView`, and `InPlaceMutableHashTable` only one occurs in a
function that is called elsewhere. How would you write the tests without
actually allocating the memory required for overflow? I'm fine dropping this PR
if you don't feel this is improving the code quality.---
