# 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. This should trigger for requests such as Refactor the code with profiling; Apply profiling; Refactor the cod…

- **Type:** Skill
- **Install:** `agentstack add skill-jabrena-cursor-rules-java-163-java-profiling-refactor`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [jabrena](https://agentstack.voostack.com/s/jabrena)
- **Installs:** 0
- **Category:** [Developer Tools](https://agentstack.voostack.com/c/developer-tools)
- **Latest version:** 0.1.0
- **License:** Apache-2.0
- **Upstream author:** [jabrena](https://github.com/jabrena)
- **Source:** https://github.com/jabrena/cursor-rules-java/tree/main/skills/163-java-profiling-refactor
- **Website:** https://jabrena.github.io/cursor-rules-java/

## Install

```sh
agentstack add skill-jabrena-cursor-rules-java-163-java-profiling-refactor
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# 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
- **EDGE CASE**: If request scope is ambiguous, stop and ask a clarifying question before applying changes
- **EDGE CASE**: If required inputs, files, or tooling are missing, report what is missing and ask whether to proceed with setup guidance

## When to use this skill

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

## Workflow

1. **Review profiling analysis artifacts**

Read `docs/profiling-problem-analysis-YYYYMMDD.md` and `docs/profiling-solutions-YYYYMMDD.md` to select target bottlenecks.

2. **Apply targeted performance refactors**

Implement focused code changes for documented CPU, memory, or threading hotspots, incrementally and safely.

3. **Verify behavior and performance build integrity**

Run `./mvnw clean verify` or `mvn clean verify`; if tests fail, fix issues before continuing.

4. **Prepare handoff for verification phase**

Summarize implemented changes and expected metric improvements for Step 4 comparison.

## Reference

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

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [jabrena](https://github.com/jabrena)
- **Source:** [jabrena/cursor-rules-java](https://github.com/jabrena/cursor-rules-java)
- **License:** Apache-2.0
- **Homepage:** https://jabrena.github.io/cursor-rules-java/

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-jabrena-cursor-rules-java-163-java-profiling-refactor
- Seller: https://agentstack.voostack.com/s/jabrena
- Browse the marketplace: https://agentstack.voostack.com/browse

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