public class Test15 {
    // Sample Java file with URLs
    String url1 = "https://example.com";
    String url2 = "https://svelte.dev";
    String urlBad = "http://example..com";
    String urlMissing = "https://";
    String urlNonexistent = "https://unregistered-website-xyz.com";
    String urlPlaceholder = "https://[tenant].[domain].com";
}