java-lint

0.3.0 verified Fri May 01 auth: no javascript deprecated

A Java lint utility library focused on removing unused imports. Current version 0.3.0 ships TypeScript types and requires Node.js ^18.13.0 || >=20.2.0. It uses java-parser for AST parsing. The package has been superseded by eslint-plugin-java-lang starting at v0.4.0, which converts the project into an ESLint plugin format. Key differentiators: lightweight, focused only on unused import removal, but with caveats about false negatives due to lazy global identifier collection.

Common errors

error TypeError: removeUnusedImports is not a function ↓

cause Using CommonJS require which returns an object with default export?

fix

Use ESM import: import { removeUnusedImports } from 'java-lint'

Warnings

deprecated This package is superseded by eslint-plugin-java-lang as of v0.4.0. ↓

fix Migrate to eslint-plugin-java-lang.

gotcha False negatives possible: global identifiers collection is lazy. ↓

fix Review results manually or consider using eslint-plugin-java-lang.

gotcha Requires Node.js ^18.13.0 || >=20.2.0 ↓

fix Ensure Node.js version compatibility.

Install

npm install java-lint

yarn add java-lint

pnpm add java-lint

Imports

removeUnusedImports

wrong

const removeUnusedImports = require('java-lint').removeUnusedImports;

correct

import { removeUnusedImports } from 'java-lint'

ESM-only since v0.1.0; no CommonJS wrapper provided.

Quickstart

Demonstrates removing an unused import from a Java source string using removeUnusedImports.

import { removeUnusedImports } from 'java-lint';

const source = `package my.project;

import my.project.pack.Unused;

class Foo {}`;

const cleaned = removeUnusedImports(source);
console.log(cleaned);
// Output: "package my.project;\n\nclass Foo {}"