This package defines 
connections between the virtual machine
using the JDI and the target virtual machine. 
In concert with {@link com.sun.jdi.VirtualMachineManager}
it is the mechanism for launching, attaching, etc to 
target virtual machines.
Methods may be added to the interfaces in the JDI packages in future 
releases. Existing packages may be renamed if the JDI becomes a standard 
extension.