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Analyzes legacy Java applications (Java EE, Servlets, JSP, EJB, Spring) for migration readiness. Use when analyzing Java code structure, identifying framework-specific patterns, or understanding legacy Java architectures.
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| name | java-legacy-analysis |
| description | Analyzes legacy Java applications (Java EE, Servlets, JSP, EJB, Spring) for migration readiness. Use when analyzing Java code structure, identifying framework-specific patterns, or understanding legacy Java architectures. |
Provide specialized knowledge for analyzing legacy Java applications to support migration planning and business logic extraction.
| Type | Key Indicators |
|---|---|
| Servlet/JSP | web.xml, HttpServlet, doGet/doPost, *.jsp files |
| EJB | @Stateless, @Stateful, @MessageDriven, ejb-jar.xml |
| Spring (legacy) | applicationContext.xml, @Controller, @Service, @Repository |
| Spring Boot | @SpringBootApplication, application.properties, pom.xml with spring-boot-starter |
| Struts | struts-config.xml, Action classes, ActionForm |
| JSF | faces-config.xml, @ManagedBean, *.xhtml Facelets |
pom.xml for <maven.compiler.source> and <maven.compiler.target>build.gradle for sourceCompatibility and targetCompatibilityMANIFEST.MF entries<bean> definitions in XML config@Autowired, @Component, @Service@Inject, @Named, beans.xml@EJB injectionDriverManager.getConnection, PreparedStatement@Entity, EntityManager, @PersistenceContextJpaRepository, CrudRepository interfaces@Mapper, XML SQL mappings@WebService, @WebMethod, WSDL files@Path, @GET, @POST, @Produces@RestController, @RequestMappingLoginModule, jaas.confWebSecurityConfigurerAdapter, @Securedweb.xml security constraints, @RolesAllowedapplication.properties / application.yml (Spring)web.xml (Servlet config)InitialContext.lookup)| Legacy Source | Recommended Target | Rationale |
|---|---|---|
| Servlets/JSP | Spring Boot MVC | Modern, well-supported, familiar patterns |
| EJB | Spring Boot services | CDI-like DI, simpler deployment |
| Struts | Spring Boot MVC | Direct action-to-controller mapping |
| JSF | Spring Boot + Thymeleaf or React | Server-side or SPA depending on complexity |
| SOAP services | Spring Boot REST | RESTful APIs are the modern standard |
| Java EE 7/8 | Jakarta EE 10+ or Spring Boot 3 | Either path viable, Spring Boot more common |