JavaLens: AI-First Code Analysis for Java
An MCP server providing 75 semantic analysis tools for Java, built directly on Eclipse JDT for compiler-accurate code understanding.
Built for AI Agents
JavaLens exists because AI systems need compiler-accurate insights that reading source files cannot provide. When an AI uses grep or Read to find usages of a method, it cannot distinguish:
- A method call from a method with the same name in an unrelated class
- A field read from a field write
- An interface implementation from an unrelated class
- A cast to a type from other references to that type
This leads to incorrect refactorings, missed usages, and incomplete understanding of code behavior.
Compiler-Accurate Analysis
JavaLens provides compiler-accurate code analysis through Eclipse JDT—the same engine that powers Eclipse IDE. Unlike text search, JDT understands:
- Type resolution across inheritance hierarchies
- Method overloading and overriding
- Generic type arguments
- Import resolution and classpath dependencies
- Java source from version 1.1 through Java 25 (markdown Javadoc, module imports, compact source files, flexible constructor bodies)
- Lombok-generated members — a bundled agent makes
@Dataaccessors and the like resolve, so code using them is not flagged as undefined
