Mark isLive as isolated

[gayaldassanayake]

Purpose

Fixes:

Examples

Checklist

• Linked to an issue
• Updated the specification
• Updated the changelog
• Added tests
• Checked native-image compatibility

Changes

This pull request adds the isolated qualifier to the isLive function in the CDC module, updating the function signature from public function isLive(Listener cdc) returns boolean|Error to public isolated function isLive(Listener cdc) returns boolean|Error. This change does not alter the function's logic, parameters, or return type, nor does it affect the underlying Java method binding.

The pull request also includes routine dependency version updates in the manifest file:

• data.jsondata: 1.1.0 → 1.1.3
• observe: 1.5.0 → 1.5.1
• ballerinax/java.jdbc: 1.14.0 → 1.14.1

These are maintenance updates with no behavioral impact on the module.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📝 Walkthrough

Walkthrough

This PR updates three dependency versions in Dependencies.toml and adds the isolated keyword to the isLive function in extern_functions.bal to enhance concurrency safety guarantees.

Changes

Cohort / File(s)	Summary
Dependency Updates ballerina/Dependencies.toml	Patch version bumps for data.jsondata (1.1.0 → 1.1.3), observe (1.5.0 → 1.5.1), and ballerinax/java.jdbc (1.14.0 → 1.14.1).
Function Isolation ballerina/extern_functions.bal	Added isolated keyword to the isLive function signature for stricter concurrency isolation without altering parameters or return type.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• Introduce liveness-check mechanism for the CDC listener #24 — Introduces the initial isLive extern function and liveness mechanism that this PR modifies with the isolated keyword.

Suggested reviewers

• daneshk
• niveathika

Poem

🐰 Dependencies hop to newer ground,
While isLive gains isolation's sound,
Concurrency locks in place so tight,
Small tweaks that set the module right! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description uses the required template structure but is largely incomplete with all checklist items unchecked and no substantive details provided in any section.	Provide context explaining why isLive should be isolated, check relevant checklist items, link to related issues, and document any specification or changelog updates.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately reflects the main change: marking the isLive function as isolated, which aligns with the file modifications in extern_functions.bal.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

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• Create PR with unit tests
• Post copyable unit tests in a comment

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.56%. Comparing base (c241584) to head (e6fdbd6).
⚠️ Report is 7 commits behind head on main.

❌ Your project status has failed because the head coverage (76.56%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff            @@
##               main      #29   +/-   ##
=========================================
  Coverage     76.56%   76.56%           
  Complexity      224      224           
=========================================
  Files            30       30           
  Lines          1084     1084           
  Branches        170      170           
=========================================
  Hits            830      830           
  Misses          176      176           
  Partials         78       78           

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