code: public static Class<? extends ParaObject> toClass(String type, Class<? extends ParaObject> defaultClass) {
  		Class<? extends ParaObject> returnClass = defaultClass;
  		if (StringUtils.isBlank(type) || !getCoreClassesMap().containsKey(type)) {
  			return returnClass;
  		}
  		return getCoreClassesMap().get(type);
  	}
docs: Converts a class name to a real {@link com.erudika.para.core.ParaObject} subclass. Defaults to
  {@link com.erudika.para.core.Sysprop} if the class was not found in the core package path.
  
  @param type the simple name of a class
  @param defaultClass returns this type if the requested class was not found on the classpath.
  @return the Class object. Returns null if defaultClass is null.
  @see java.lang.Class#forName(java.lang.String)
  @see com.erudika.para.core.Sysprop