As discussed with @suztomo, do not merge this until googleapis updates the protobuf compiler version to 3.22.

Waiting for https://github.com/googleapis/googleapis/blob/master/WORKSPACE#L83 to have Protobuf 3.22.0 or higher.

@blakeli0 @meltsufin Now the two files (pom.xml and dependencies.properties) are managed by one pull request. Thank you for the pointer today.

But "ci-maven / build" started failing.

/home/runner/.cache/bazel/_bazel_runner/1f815583ebc8da6875b9074f31ba9a5d/external/bazel_tools/tools/build_defs/repo/http.bzl:353:31: in <toplevel>
(21:19:47) ERROR: /home/runner/work/gapic-generator-java/gapic-generator-java/BUILD.bazel:5:12: //:protoc-gen-java_gapic depends on @maven//:com_google_api_gapic_generator_java in repository @maven which failed to fetch. no such package '@maven//': Error while fetching artifact with coursier: OpenJDK 64-Bit Server VM warning: Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release.
Resolution error: Error downloading $com.google.protobuf:protobuf-java:
  not found: /home/runner/.m2/repository/$com/google/protobuf/protobuf-java/protobuf-java-.pom
  not found: https://repo.maven.apache.org/maven2/$com/google/protobuf/protobuf-java//protobuf-java-.pom

The strange "$" mark seems related to this issue protocolbuffers/protobuf#12170

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As of the 4/25 release cycle, the protobuf version in googleapis is 3.21.12: https://github.com/googleapis/googleapis/blob/ab4ba823439f786b2091984fed6408a950aaef9e/WORKSPACE#L83

Keeping this as Do not merge.

As of the 5/8 release cycle, the protobuf version in googleapis is 3.21.12: https://github.com/googleapis/googleapis/blame/master/WORKSPACE#L162

Keeping this as Do not merge.

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@mpeddada1 Can you bump the version to 3.23.1?

PR to bump version to 3.23.1 created at #1698