[Bug]: The repo has a dependency on old Java versions, needs updating to newer.

### Bug Description

Instructions to build and try samples fail when using Java 17. 
Only after using Java 8 did it work. 

### Expected Behavior

For instruction steps to work without throwing build errors

### Steps to Reproduce

Follow instructions.

### Solace Product

Other

### Solace Broker version

All

### Solace API

Java

### Solace API version

Any