# Java JDWP Debugger

> Use this tool when you need to debug and control running Java applications, solving problems such as identifying and fixing errors, and optimizing performance. It provides a comprehensive interface for setting breakpoints, evaluating expressions, and mutating runtime values, with inputs including Java application code and outputs including debug logs and error reports. Ideal for use in development and testing contexts where fine-grained control over Java applications is required.

Canonical page: https://skillsregistry.net/skills/fgforrest-java-debugger  
JSON: https://api.skillsregistry.net/v1/skills/fgforrest-java-debugger

## Description

A Java-based MCP server providing AI agents with full debugger control over running Java applications via JDWP/JDI. Supports 40 tools including conditional breakpoints, logpoints, exception breakpoints, expression evaluation, and runtime value mutation. Built with Spring Boot and Spring AI MCP.

## Trust

- **Trust score (0–1):** 0.53
- **Verification tier:** scanned
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-28

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/fgforrest-java-debugger)
- **Repository:** <https://github.com/fgforrest/mcp-jdwp-java>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "fgforrest-java-debugger"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/fgforrest-java-debugger` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/fgforrest-java-debugger/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt