jodd-props/src/main/java/jodd/props/PropsData.java
public void putBaseProperty(final String key, final String value, final boolean append) {
		put(null, baseProperties, key, value, append);
	}
public void putBaseProperty(final String key, final String value, final boolean append) {
		put(null, baseProperties, key, value, append);
	}
Adds base property.