if (!Files.exists(rootPomPath)) {
            throw new IOException("No pom.xml found in directory: " + startDirectory);
        }

        Document rootPom = loadPom(rootPomPath);
        pomMap.put(rootPomPath, rootPom);

        // Recursively discover modules
        discoverModules(startDirectory, rootPom, pomMap);

        return pomMap;
    }

    /**