To download the Java Client v2 API jar, you can use a tool like Maven or Gradle. Here's a brief snippet to get you started with Maven:

<dependency>
  <groupId>com.example</groupId>
  <artifactId>java-client-v2-api</artifactId>
  <version>1.0.0</version>
</dependency>

To download the jar file, you can use the following command in your terminal:

mvn dependency:resolve -Dmaven.test.skip=true

This will download the required dependencies, including the Java Client v2 API jar.

As for the Product Recipe Vector PNG and PNG Recipe Vector, it seems like you're looking for a way to add vector graphics to your product recipe. You can use a library like React Native Vector Icons or SVG.js to achieve this.