code in client-application java-pure is missed

In examples/client-applications/java-pure/README.md, it says:
```
java-pure/
├── pom.xml
├── README.md
└── src/
├── main/
│ ├── java/
│ │ └── com/
│ │ └── example/
│ │ └── vault/
│ │ ├── VaultApplication.java # Main application
│ │ ├── config/
│ │ │ └── VaultConfig.java # Configuration management
│ │ └── client/
│ │ └── VaultClient.java # Vault client
│ └── resources/
│ ├── config.properties # Configuration file
│ └── logback.xml # Logging configuration
└── test/
└── java/
└── com/
└── example/
└── vault/
└── VaultApplicationTest.java
```
but actually , not any java code is provided in this folder.
Please help with it ,thanks a lot