# Interface: com.pnfsoftware.jeb.core.units.code.debug.IDebuggerTargetEnumerator

Define an enumerator of machines that may offer candidate targets for debugging.

## Method: listMachines
- return type: `java.util.List<? extends com.pnfsoftware.jeb.core.units.code.debug.IDebuggerMachineInformation>`

Description: Retrieve a list of machines whose processes may be handled by the debugger connected to this target enumerator.
return: a list of machines, possibly empty