[Feature Request]: Add Postcommit Dataflow ARM tests for Java and Python

[celeste-zeng]

What would you like to happen?

Currently only Go has a PostCommit test suite on Dataflow ARM: https://github.com/apache/beam/blob/master/.github/workflows/beam_PostCommit_Go_Dataflow_ARM.yml.

We want to have PostCommit ARM test suites for Python and Java that run not only wordcount but also other tests on Dataflow runner.

Issue Priority

Priority: 2 (default / most feature requests should be filed as P2)

Issue Components

• Component: Python SDK
• Component: Java SDK
• Component: Go SDK
• Component: Typescript SDK
• Component: IO connector
• Component: Beam examples
• Component: Beam playground
• Component: Beam katas
• Component: Website
• Component: Spark Runner
• Component: Flink Runner
• Component: Samza Runner
• Component: Twister2 Runner
• Component: Hazelcast Jet Runner
• Component: Google Cloud Dataflow Runner

[celeste-zeng]

The Java11 PostCommit Dataflow on x86 counterpart, such as job_PostCommit_Java_Dataflow_Examples_Java11.groovy, also only runs https://github.com/apache/beam/blob/01cd45390babcc5d0570affa73d604f5077a6d15/runners/google-cloud-dataflow-java/examples/build.gradle#L69C8-L70C46 wordcount tests, not sure if we should add more tests to it.

[celeste-zeng]

Tests to be added for Java PostCommit:

beam/runners/google-cloud-dataflow-java/build.gradle

Line 606 in 7a421c4

include '**/*IT.class'

(remember not to exclude the wordcount).