org.apache.beam.sdk.io.pulsar.PulsarIOTest.testReadFromSimpleTopic flaky

[damccorm]

https://ci-beam.apache.org/job/beam_PreCommit_Java_Cron/5270/testReport/org.apache.beam.sdk.io.pulsar/PulsarIOTest/testReadFromSimpleTopic/

Caused by: java.lang.IllegalArgumentException: Trying to claim offset 1648580086959 before start of
the range [1648580087254, 1648580087266)
	at org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkArgument(Preconditions.java:440)
	at
org.apache.beam.sdk.transforms.splittabledofn.OffsetRangeTracker.tryClaim(OffsetRangeTracker.java:97)
	at
org.apache.beam.sdk.transforms.splittabledofn.OffsetRangeTracker.tryClaim(OffsetRangeTracker.java:38)
	at
org.apache.beam.repackaged.direct_java.sdk.fn.splittabledofn.RestrictionTrackers$RestrictionTrackerObserver.tryClaim(RestrictionTrackers.java:59)
	at
org.apache.beam.sdk.io.pulsar.ReadFromPulsarDoFn.processElement(ReadFromPulsarDoFn.java:170)

Imported from Jira BEAM-14209. Original Jira may contain additional context.
Reported by: kileys.

[imaffe]

Sorry I just saw someone is already working on this issue. I'll help him finish the PR #17473 instead.