[BEAM-12334] Re-use java 11 flag in build.gradle

[kileys]

Reuse the flag to compile and run in Java 11 for the Jenkins job

---

Thank you for your contribution! Follow this checklist to help us incorporate your contribution quickly and easily:

• Choose reviewer(s) and mention them in a comment (R: @username).
• Format the pull request title like [BEAM-XXX] Fixes bug in ApproximateQuantiles, where you replace BEAM-XXX with the appropriate JIRA issue, if applicable. This will automatically link the pull request to the issue.
• Update CHANGES.md with noteworthy changes.
• If this contribution is large, please file an Apache Individual Contributor License Agreement.

See the Contributor Guide for more tips on how to make review process smoother.

ValidatesRunner compliance status (on master branch)

Lang	ULR	Dataflow	Flink	Samza	Spark	Twister2
Go	---			---		---
Java
Python	---			---		---
XLang				---		---

Examples testing status on various runners

Lang	ULR	Dataflow	Flink	Samza	Spark	Twister2
Go	---	---	---	---	---	---	---
Java	---		---	---	---	---	---
Python	---	---	---	---	---	---	---
XLang	---	---	---	---	---	---	---

Post-Commit SDK/Transform Integration Tests Status (on master branch)

Go	Java	Python

Pre-Commit Tests Status (on master branch)

---	Java	Python	Go	Website	Whitespace	Typescript
Non-portable
Portable	---			---	---	---

See .test-infra/jenkins/README for trigger phrase, status and link of all Jenkins jobs.

GitHub Actions Tests Status (on master branch)

See CI.md for more information about GitHub Actions CI.

[kileys]

R: @amaliujia

[amaliujia]

LGTM

[amaliujia]

Do you need to run any postcommits?

[kileys]

Dataflow Runner Nexmark Tests

[kileys]

Run SQL PostCommit

[kileys]

Run Dataflow Runner V2 Java 11 Nexmark Tests

[kileys]

Need to run seed job to test the updated job
@amaliujia

[amaliujia]

Created #14956 and trigger seed job there.

[kileys]

Run Java PreCommit

[kileys]

Run Java_Examples_Dataflow_Java11 PreCommit

[kileys]

Run Java PreCommit

[kileys]

@amaliujia the test is going to time out because of an unrelated issue https://issues.apache.org/jira/browse/BEAM-12452
but the update to the test is running without compile errors

https://gradle.com/s/r3vyrald6fhkm
https://gradle.com/s/vyqtqy22wr2iu
https://gradle.com/s/njd3vfdwnglv2

[amaliujia]

Run Java PreCommit

[amaliujia]

Run Dataflow Runner V2 Java 11 Nexmark Tests

[amaliujia]

Ah I guess I need to trigger another seed job?

[kileys]

Ah I guess I need to trigger another seed job?

Unfortunately, yeah

[amaliujia]

Ah I guess I need to trigger another seed job?

Unfortunately, yeah

Done

[kileys]

Run Dataflow Runner V2 Java 11 Nexmark Tests