Upgrade Maven compiler source and target to 1.8

[namastepritish]

Hi,

While testing DevOps-Project-05 with the latest Jenkins Docker image and newer JDK versions, I noticed that the Maven build fails because the project is still configured with Java 7 source/target compatibility.

Error observed:

"Source option 7 is no longer supported. Use 8 or later."

Modern JDK versions no longer support compiling with source/target 1.7, so I have updated the Maven compiler configuration from Java 1.7 to Java 1.8.

Changes:

• Updated maven.compiler.source from 1.7 → 1.8
• Updated maven.compiler.target from 1.7 → 1.8

This keeps the project compatible with newer Jenkins + Docker environments while maintaining backward compatibility.

Tested with:

• Jenkins running in Docker
• Maven build: mvn clean install
• OpenJDK newer runtime

Build passes successfully after this change.

Thanks for maintaining this helpful DevOps learning repository!

Summary by CodeRabbit

• Chores
  • Updated the project to compile with Java 8 instead of Java 7.
  • This helps keep the app aligned with newer Java environments and builds.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: d65efdd5-d3b4-4330-92e6-66d31feb7ff3

📥 Commits

Reviewing files that changed from the base of the PR and between a38cc0f and 7c217da.

📒 Files selected for processing (1)

• DevOps-Project-05/hello-world/pom.xml

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📝 Walkthrough

Walkthrough

The Maven compiler plugin configuration in the hello-world pom.xml file is updated, changing both the source and target Java version from 1.7 to 1.8.

Changes

Compiler Configuration Update

Layer / File(s)	Summary
Update Java compiler version DevOps-Project-05/hello-world/pom.xml	Maven compiler plugin's <source> and <target> values changed from 1.7 to 1.8.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Related Issues: None specified

Related PRs: None specified

Suggested labels: dependencies, build

Suggested reviewers: NotHarshhaa

Poem:
A rabbit hops through old code's rows,
Bumping numbers, that's how it goes.
1.7 fades, 1.8 takes its place,
A tiny tweak, a compiler's grace.
Twitching whiskers, the build now flows! 🐰

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: upgrading Maven compiler source and target from Java 1.7 to 1.8.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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