163-java-profiling-refactor

Use when you need to refactor Java code based on profiling analysis findings — including reviewing docs/profiling-problem-analysis and docs/profiling-solutions, identifying specific performance bottlenecks, and implementing targeted code changes to address CPU, memory, or threading issues. Part of the skills-for-java project

Java Profiling Workflow / Step 3 / Refactor code to fix issues

Implement refactoring based on profiling analysis: review profiling-problem-analysis-YYYYMMDD.md and profiling-solutions-YYYYMMDD.md, identify specific performance bottlenecks, and refactor code to fix them. Ensure all tests pass after changes.

What is covered in this Skill?

  • Review analysis notes: docs/profiling-problem-analysis-YYYYMMDD.md, docs/profiling-solutions-YYYYMMDD.md
  • Identify specific bottlenecks from the documented findings
  • Refactor code to address CPU hotspots, memory leaks, threading issues, or other performance problems
  • Run verification: ./mvnw clean verify or mvn clean verify

Scope: Changes must pass all tests. Apply fixes incrementally and verify after each significant change.

Constraints

Verify that changes pass all tests before considering the refactoring complete.

  • MANDATORY: Run ./mvnw clean verify or mvn clean verify after applying refactoring
  • SAFETY: If tests fail, fix issues before proceeding
  • BEFORE APPLYING: Read the analysis and solutions documents for specific recommendations

When to use this skill

  • Refactor the code with profiling
  • Apply profiling
  • Refactor the code with profiling
  • Optimize hot path
  • Performance refactoring

Reference

For detailed guidance, examples, and constraints, see references/163-java-profiling-refactor.md.