Add "Java-Projects"

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+# ☕ Java Projects
+
+![Java Overview Banner](http://192.168.188.119:30008/pplate/pi_mcps/raw/branch/main/docs/wiki/images/java-overview-banner.png)
+
+The `java/` directory contains legacy Java EE enterprise applications developed with NetBeans and deployed on JBoss/WildFly. Both projects were built from scratch by Patrick as portfolio and learning projects — showcasing deep expertise in JPA, PrimeFaces JSF, and Jakarta EE architecture.
+
+## Projects
+
+| Project | Type | Stack | Description |
+|---|---|---|---|
+| [wellmann-shop](wellmann-shop) | Single-module WAR | JSF, PrimeFaces 6.2, JPA/EclipseLink, Java 8 | B2B printing/stationery e-commerce shop with shopping cart, product management, and role-based access |
+| [mss-failsafe](mss-failsafe) | Multi-module Maven EAR | Java EE 8, CDI, JSF 2.3, PrimeFaces 10, Java 11 | Multi-tenant machine/ticket tracking and user management enterprise app |
+
+## Technology Stack
+
+- **Build:** Apache Maven 3.x
+- **Runtime:** JBoss / WildFly (Jakarta EE)
+- **Persistence:** JPA with EclipseLink 2.7.x
+- **Web UI:** JSF 2.x + PrimeFaces (6.2 for wellmann-shop, 10.0 for mss-failsafe)
+- **Security:** Jakarta Security API (javax.security.enterprise / Soteria) with PBKDF2 password hashing
+- **Database:** MySQL (wellmann-shop), configurable via `persistence.xml`
+- **Logging:** Log4j 1.x (wellmann-shop), Log4j2 2.x (mss-failsafe)
+- **Language:** Java 8 (wellmann-shop), Java 11 (mss-failsafe)
+- **IDE:** NetBeans (nb-configuration.xml files present in all modules)
+
+## Project Structure
+
+```
+java/
+├── wellmann-shop/          ← Single-module WAR project
+│   ├── pom.xml             ← groupId: Plate, artifactId: Wellmann-Shop, v0.2
+│   └── src/main/
+│       ├── java/           ← Business + controller + persistence layers
+│       └── webapp/         ← XHTML pages, CSS, resources
+└── mss-failsafe/           ← Multi-module Maven project
+    ├── pom.xml             ← Parent POM (packaging: pom)
+    ├── mssfailsafe.datalayer/  ← JPA domain model / entities
+    ├── userdata/           ← User management + security module (JAR)
+    ├── mssfailsafeWeblayer/    ← Web layer module (WAR)
+    └── mss/                ← Main MSS web module (WAR)
+```
+
+## Common Patterns
+
+Both projects follow classic Jakarta EE layered architecture:
+- **CDI `@Named` + `@SessionScoped`** beans as JSF backing controllers
+- **`@PersistenceContext`** for JPA EntityManager injection
+- **`jboss-web.xml` / `jboss-app.xml`** for WildFly deployment descriptors
+- **`faces-config.xml`** / navigation configuration for JSF
+- **PBKDF2 password hashing** via `commons-codec` (wellmann-shop) or Soteria (mss-failsafe)
+
+## Notes
+
+These are portfolio/learning projects, not actively maintained. They demonstrate Patrick's Java EE expertise predating Spring Boot — built entirely without AI assistance, using NetBeans + WildFly + Maven.