junit-servers-core/src/main/java/com/github/mjeanroy/junit/servers/servers/AbstractConfigurationBuilder.java
public T withWebapp(File webapp) {
		notNull(webapp, "webapp");
		this.webapp = webapp.getAbsolutePath();
		return self();
	}
public T withWebapp(File webapp) {
		notNull(webapp, "webapp");
		this.webapp = webapp.getAbsolutePath();
		return self();
	}
Change {@link #webapp} value.

@param webapp New {@link #webapp} value (the absolute path will be used).
@return this
@throws NullPointerException If {@code webapp} is null.