JavaLens MCP Server

What the code does

We read the source, 1 d ago · rules 995398eba69f

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

        Process p = new ProcessBuilder(command)

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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 javalens -- npx -y javalens-mcp

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

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

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

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

Optional settings from the registry entry, left out of the block above: JAVA_PROJECT_PATH (Auto-load project on startup), JAVALENS_TIMEOUT_SECONDS (Time limit on each tool call in seconds (5-300); unset means no limit), JAVALENS_LOG_LEVEL (Log level: TRACE, DEBUG, INFO, WARN, ERROR).