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https://issues.apache.org/jira/browse/NIFI-10630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
David Handermann resolved NIFI-10630.
-------------------------------------
Fix Version/s: 1.19.0
Resolution: Fixed
> Fixed Possible Json Ordering Permutations Problem in Tests
> ----------------------------------------------------------
>
> Key: NIFI-10630
> URL: https://issues.apache.org/jira/browse/NIFI-10630
> Project: Apache NiFi
> Issue Type: Test
> Components: NiFi Registry
> Affects Versions: 1.18.0
> Environment: Apache Maven 3.6.3
> Java version: 11.0.16, vendor: Ubuntu, runtime:
> /usr/lib/jvm/java-11-openjdk-amd64
> Default locale: en_US, platform encoding: UTF-8
> OS name: "linux", version: "5.4.0-124-generic", arch: "amd64", family: "unix"
> Reporter: Boyu Li
> Priority: Minor
> Fix For: 1.19.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> The test file
> {code:java}
> nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors
> org.apache.nifi.processors.standard.TestWaitNotifyProtocol
> {code}
> has flakiness with the below three tests.
> {code:java}
> testNotifyAttributes
> testNotifyCounters
> testNotifyFirst
> {code}
> The test flakiness is due to comparisons between Json Strings and outputs from
> cacheEntry.getValue() which is an Object AtomicCacheEntry<String, String,
> Long>
> However, JsonObject does not guarantee entry orders, its object is an
> unordered set of name/value pairs, and internal permutations may occur in the
> output as JSON String.
>
> *Steps to reproduce the failure:*
> The flakiness was found with
> [NonDex.|https://github.com/TestingResearchIllinois/NonDex)]
> After installing NonDex and run the following code.
> {code:java}
> cd nifi
> mvn install -pl
> nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors -am -DskipTests
> mvn -pl nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors
> edu.illinois:nondex-
> maven-plugin:1.1.3-SNAPSHOT:nondex -
>
> Dtest=org.apache.nifi.processors.standard.TestWaitNotifyProtocol#testNotifyCounters
>
> {code}
>
>
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