jodd-json/src/main/java/jodd/json/JsonSerializer.java
public JsonSerializer excludeTypes(final Class... types) {
		if (excludedTypes == null) {
			excludedTypes = types;
		} else {
			excludedTypes = ArraysUtil.join(excludedTypes, types);
		}
		return this;
	}
public JsonSerializer excludeTypes(final Class... types) {
		if (excludedTypes == null) {
			excludedTypes = types;
		} else {
			excludedTypes = ArraysUtil.join(excludedTypes, types);
		}
		return this;
	}
Excludes types. Supports interfaces and subclasses as well.