[Backport 1.x] Initial Hello World Extension integration test

[ryanbogan]

Description

Sets ./gradle check to depend on integTest task. Adds an integration test to send an initialization request from OpenSearch to the hello world extension.

Additionally this PR removes the TransportCommunicationIT test class as this will need to be redone.

Backport of #874

Issues Resolved

#867

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[ryanbogan]

@reta I believe this is failing due to a gradle update, but I can't figure out how to fix it. Any ideas?

[dbwiddis]

I first saw this symptom in the Gradle 8.2 version bump (#855).

org.gradle.api.GradleException: Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0
        at org.gradle.internal.featurelifecycle.LoggingDeprecatedFeatureHandler.displayDeprecationIfSameMessageNotDisplayedBefore(LoggingDeprecatedFeatureHandler.java:90)
        at org.gradle.internal.featurelifecycle.LoggingDeprecatedFeatureHandler.featureUsed(LoggingDeprecatedFeatureHandler.java:75)
        at org.gradle.internal.deprecation.DeprecationLogger.nagUserWith(DeprecationLogger.java:347)
        at org.gradle.internal.deprecation.DeprecationLogger.nagUserWith(DeprecationLogger.java:246)
        at org.gradle.internal.deprecation.DeprecationMessageBuilder$WithDocumentation.nagUser(DeprecationMessageBuilder.java:130)
        at org.gradle.api.internal.project.DefaultProject.getConvention(DefaultProject.java:593)

I know there's a deprecation warning which is fine but it seems it's throwing an uncaught exception failing builds. This is supposed to be a 9.0 warning, not "we're no longer backwards compatible starting with 8.2."

It seems to be transient, sometimes builds work.

I've searched for bugs at Gradle and not seen any.

I think options include:

• downgrade to Gradle 8.1
• fix OpenSearch Gradle Plugin to remove the deprecated features

[reta]

@ryanbogan @dbwiddis we've never updated Gradle on OpenSearch 1.x because update to 8.x was breaking things (like this one, so if we would, we would have broken all plugins) :(

[dbwiddis]

@reta our 1.x is OpenSearch 2.x.

[reta]

@reta our 1.x is OpenSearch 2.x

Oh, sorry about that, I will take a look shortly

[reta]

@ryanbogan @dbwiddis please use 2.10.0-SNAPSHOT, the Gradle 8.2.1 was not merged into 2.9

        opensearch_version = System.getProperty("opensearch.version", "2.10.0-SNAPSHOT")

[owaiskazi19]

@ryanbogan @dbwiddis please use 2.10.0-SNAPSHOT, the Gradle 8.2.1 was not merged into 2.9

        opensearch_version = System.getProperty("opensearch.version", "2.10.0-SNAPSHOT")

Thanks @reta for looking into it. We are planning to release SDK from 1.x branch with 2.9.0 of OpenSearch though. @ryanbogan I think we should match the gradle version of OpenSearch 2.9 in 1.x of SDK. Can you take care of that?

[ryanbogan]

Seems like we need to downgrade the gradle version for the SDK for 2.9 then

[ryanbogan]

PR here: #884