jodd-vtor/src/main/java/jodd/vtor/Vtor.java
public void useProfile(final String profile) {
		if (profile == null) {
			return;
		}
		if (this.enabledProfiles == null) {
			this.enabledProfiles = new HashSet<>();
		}
		this.enabledProfiles.add(profile);
	}
public void useProfile(final String profile) {
		if (profile == null) {
			return;
		}
		if (this.enabledProfiles == null) {
			this.enabledProfiles = new HashSet<>();
		}
		this.enabledProfiles.add(profile);
	}
Enables single profile.