chore(aiplatform): Update CreateBatchPredictionGeminiBigqueryJobSample to use gemini 2.5

[amcolin]

Description

The sample uses an outdated or inconsistent Gemini model version (gemini-2.0-flash-001). It needs to be updated to a supported version like gemini-2.5-flash

Internal: b/481401081

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed Sample Format Guide
• pom.xml parent set to latest shared-configuration
• Appropriate changes to README are included in PR
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• Tests pass: mvn clean verify required
• Lint passes: mvn -P lint checkstyle:check required
• Static Analysis: mvn -P lint clean compile pmd:cpd-check spotbugs:check advisory only
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[gemini-code-assist]

Summary of Changes

Hello @amcolin, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates a Java sample for Google Cloud AI Platform to ensure it uses a current and supported version of the Gemini model. The change specifically targets the CreateBatchPredictionGeminiBigqueryJobSample, replacing an outdated model reference with gemini-2.5-flash to maintain sample functionality and consistency with the latest model offerings.

Highlights

• Gemini Model Update: The CreateBatchPredictionGeminiBigqueryJobSample has been updated to utilize the gemini-2.5-flash model, replacing the previously used gemini-2.0-flash-001.

Changelog

• aiplatform/src/main/java/aiplatform/batchpredict/CreateBatchPredictionGeminiBigqueryJobSample.java
  • Updated the Gemini model version from gemini-2.0-flash-001 to gemini-2.5-flash.

Activity

• No activity found for this pull request yet.

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[gemini-code-assist]

Code Review

This pull request correctly updates the Gemini model version to gemini-2.5-flash in CreateBatchPredictionGeminiBigqueryJobSample.java. However, a related sample file, aiplatform/src/main/java/aiplatform/batchpredict/CreateBatchPredictionGeminiJobSample.java, still references the outdated gemini-2.0-flash-001 model. To ensure consistency and that all samples use the supported model version as stated in the PR description, I recommend updating the model in that file as well. After updating both files, consider extracting the model version string into a shared constant to improve maintainability and avoid duplication.