Changes to add jdk17, remove jdk 8,14, OS 2.0 and upgrade to gradle 7

[sgup432]

Signed-off-by: Sagar Upadhyaya sagar.upadhyaya.121@gmail.com

Is your feature request related to a problem? Please provide an existing Issue # , or describe.

• Drop support for JDK 14. #151
• Add support for JDK 17 #142
• Remove support for JDK 8 #141
• OS 2.0 related CR where this was taken - Opensearch 2.0.0 qualifier fix for PA RCA #152

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Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff

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[codecov-commenter]

Codecov Report

Merging #156 (8d79b98) into main (4e7ed7a) will decrease coverage by 0.09%.
The diff coverage is 39.13%.

@@             Coverage Diff              @@
##               main     #156      +/-   ##
============================================
- Coverage     72.02%   71.92%   -0.10%     
+ Complexity     2962     2949      -13     
============================================
  Files           376      376              
  Lines         18834    18783      -51     
  Branches       1465     1442      -23     
============================================
- Hits          13565    13510      -55     
+ Misses         4685     4676       -9     
- Partials        584      597      +13     

Impacted Files	Coverage Δ
...decisionmaker/deciders/jvm/JvmGenTuningPolicy.java	75.00% <0.00%> (ø)
...er/rca/framework/api/summaries/HotNodeSummary.java	58.71% <0.00%> (-0.55%)	⬇️
...ca/framework/api/summaries/TopConsumerSummary.java	68.51% <ø> (+2.44%)	⬆️
...rca/framework/api/summaries/HotClusterSummary.java	77.14% <40.00%> (-3.46%)	⬇️
...ca/framework/api/summaries/HotResourceSummary.java	85.79% <40.00%> (-1.43%)	⬇️
...r/rca/framework/api/summaries/HotShardSummary.java	86.70% <40.00%> (-1.68%)	⬇️
.../performanceanalyzer/rca/response/RcaResponse.java	94.64% <75.00%> (-1.73%)	⬇️
...pensearch/performanceanalyzer/jvm/HeapMetrics.java	40.62% <0.00%> (-15.63%)	⬇️
...nceanalyzer/rca/samplers/MetricsDBFileSampler.java	75.00% <0.00%> (-9.10%)	⬇️
...formanceanalyzer/PerformanceAnalyzerWebServer.java	68.65% <0.00%> (-5.98%)	⬇️
... and 15 more

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[sruti1312]

If we are not planning to fix this now, can we open an issue and link it here?

Looks like you fixed almost all the issues.

[sgup432]

I have created issue - #157 to track this.

There are still many medium related warnings which needs to be fixed. I fixed high priority ones.

[sgup432]

Though JDK 11, 17 CI is failing, will be pushing these changes. As this RCA PR rely on PA where OS 2.0, gradle 7, jdk 17 changes are still in PR phase. Will take care there. Had tested these changes with pointing to PA non main branch which had desired changes.