Quarkus Full Build

Run a complete build of the Quarkus project with optimized settings.

Overview

This skill executes a full Quarkus build using Maven with flags optimized for speed and the Quarkus project structure. The build is dispatched to a subagent to keep your main conversation responsive during the long-running compilation.

When to Use

• User asks to "do a full build"
• User requests "complete build" or "rebuild everything"
• User wants to "build the whole project"
• After major changes that require rebuilding all modules
• Before running integration tests
• When preparing a release or deployment

When NOT to use:

• For building specific modules (use quarkus-module-build instead)
• For incremental compilation (just run mvn compile directly)
• For running tests only (use mvn test directly)

Quick Reference

Build command:

mvn install -Dquickly -Dno-test-modules -Dskip.gradle.build=true -T 16C -Prelocations

Flags explained:

• -Dquickly - Skip tests, formatting checks, and other non-essential tasks
• -Dno-test-modules - Don't build test-only modules
• -Dskip.gradle.build=true - Skip Gradle-based builds (Quarkus is Maven)
• -T 16C - Parallel build with 16 threads per CPU core
• -Prelocations - Use relocations profile for optimized dependencies

Typical build time: 5-15 minutes (depends on project size and machine)

Implementation

Step 1: Dispatch Build to Subagent

Use the Agent tool to run the build in a separate context. This keeps the main conversation responsive while the build runs.

Subagent prompt:

Run a full Quarkus build with the following command:

mvn install -Dquickly -Dno-test-modules -Dskip.gradle.build=true -T 16C -Prelocations

Monitor the Maven output and report:
1. Whether the build succeeded or failed
2. If it failed, include the relevant error output (compilation errors, test failures, etc.)
3. Total build time

Do not include the full Maven output unless there are errors.

Step 2: Monitor Subagent Progress

The subagent will:

1. Execute the Maven build command
2. Watch for success/failure indicators in Maven output
3. Report back when complete

You don't need to poll - the subagent will notify when done.

Step 3: Report Results

After the subagent completes, summarize:

On success:

✓ Full Quarkus build completed successfully in 8m 42s

The project is ready for testing or deployment.

On failure:

✗ Full Quarkus build failed during compilation

Error in extensions/quarkus-graphql/runtime:
[ERROR] /path/to/GraphQLService.java:[45,23] cannot find symbol
  symbol:   method getSchema()
  location: variable config of type GraphQLConfig

The GraphQLService class is calling a method that doesn't exist in GraphQLConfig.

Step 4: Offer Next Steps

After success:

• Suggest running tests if they were skipped
• Offer to build specific modules if changes are localized
• Mention deployment options if appropriate

After failure:

• Identify the failing module
• Suggest fixes based on error type
• Offer to build just the failing module after fixes

Common Build Flags

Flag	Purpose	When to Use
-Dquickly	Skip tests and checks	Fast feedback during development
-DskipTests	Skip test execution only	When tests are slow but you want other checks
-T 1C	Single-threaded	Debugging build order issues
-T 16C	Parallel (16 threads/core)	Fast builds on powerful machines
-am	Also make dependencies	Building a module with its dependencies
-pl module	Build specific module	Testing changes in one module

Build Troubleshooting

Out of memory:

export MAVEN_OPTS="-Xmx4g -XX:MaxMetaspaceSize=1g"
mvn install -Dquickly ...

Stale artifacts:

mvn clean install -Dquickly ...

Dependency resolution issues:

mvn dependency:purge-local-repository
mvn install -Dquickly ...

Platform Notes

This skill is platform-agnostic:

• Claude Code: Use Agent tool for subagent dispatch
• Gemini CLI: Use SubAgent tool
• Codex: Use SubAgent/Background execution

The Maven command itself is universal across all platforms.

Related Skills

• quarkus-module-build - Build specific modules only
• java-classpath-search - Find dependencies after build
• java-decompile - Inspect built classes