JVM Source Lens MCP Server

What the code does

We read the source, 6 h ago · rules 995398eba69f

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  const main = path.join(moduleRoot, 'src', 'main', 'java', rel);

  function spawn(

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Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add jvmsrc -- npx -y jvmsrc

{
  "mcpServers": {
    "jvmsrc": {
      "command": "npx",
      "args": [
        "-y",
        "jvmsrc"
      ]
    }
  }
}

[mcp_servers.jvmsrc]
command = "npx"
args = ["-y", "jvmsrc"]

{
  "mcpServers": {
    "jvmsrc": {
      "command": "npx",
      "args": [
        "-y",
        "jvmsrc"
      ]
    }
  }
}

{
  "servers": {
    "jvmsrc": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "jvmsrc"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: JVMSRC_ALLOWED_ROOTS (Optional comma-separated absolute paths; only these project roots are allowed), JVMSRC_CACHE_ROOT (Optional absolute path for resolution and decompile caches (default: OS cache dir)), JVMSRC_LOG_DIR (Optional absolute path for failure diagnostic logs), JVMSRC_MAX_SOURCE_OUTPUT_CHARS (Max characters returned for full-file source (default 524288)), JVMSRC_GRADLE_TIMEOUT_MS (Gradle resolution subprocess timeout in milliseconds), JVMSRC_CFR_PATH (Optional path to a custom CFR JAR for decompilation).