public Program getProgram() {
		return programRef.get();
	}
Returns the {@link Program} that has just been opened. This method
can return null, but only if the method is called some time after the original event
notification.
@return the {@link Program} that has just been analyzed for the first time.
Ghidra/Features/Base/src/main/java/ghidra/app/events/ProgramClosedPluginEvent.java