icegem-core/src/main/java/com/googlecode/icegem/serialization/codegen/DataSerializerGenerator.java
private static boolean existsClass(String clsName, ClassLoader clsLoader) {
        String resource = clsName.replace('.', '/');
        return clsLoader.getResource(resource) != null;
    }
private static boolean existsClass(String clsName, ClassLoader clsLoader) {
        String resource = clsName.replace('.', '/');
        return clsLoader.getResource(resource) != null;
    }
TODO.

@param clsName
@param clsLoader
@return