NullPointerException in HopsworksHttpClient #502

Job	Run time
Lint and Stylecheck	13s
Unit Tests (No Optional Dependencies)	2m 16s
Unit Tests (3.8)	2m 48s
Unit Tests (Pandas 1.x)	4m 24s
Unit Tests (Local TZ)	2m 43s
Unit Tests (3.9)	2m 56s
Unit Tests (Typechecked)	2m 33s
Unit Tests (3.10)	2m 46s
Unit Tests (Windows)	10m 17s
Unit Tests (Windows) (Local TZ)	9m 16s
	40m 12s

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