GraphExploreResponseTests XContent Tests failing

[hub-cap]

I have seen a few of these fail on different tests. Repros are below. I did not test on 7.0, but this did happen on 6.x

./gradlew :x-pack:protocol:test \
  -Dtests.seed=725399AD44911E5E \
  -Dtests.class=org.elasticsearch.protocol.xpack.graph.GraphExploreResponseTests \
  -Dtests.security.manager=true

./gradlew :x-pack:protocol:test \
  -Dtests.seed=A9994E345900D947 \
  -Dtests.class=org.elasticsearch.protocol.xpack.graph.GraphExploreResponseTests \
  -Dtests.method="testFromXContent" \
  -Dtests.security.manager=true

[elasticmachine]

Pinging @elastic/es-search-aggs

[s1monw]

@markharwood this seems to fail again but on a different (same?) test in a different project / dir

./gradlew :x-pack:protocol:test -Dtests.seed=B915FE5C0EE5813C -Dtests.class=org.elasticsearch.protocol.xpack.graph.GraphExploreResponseTests -Dtests.method="testFromXContentWithFailures" -Dtests.security.manager=true -Dtests.locale=th-TH -Dtests.timezone=Europe/Vienna -Dcompiler.java=10 -Druntime.java=8

can you please have a look? It seems this test is a copy and didn't get you fix from #33709