Getter模块修改---NotNull_Getter

#if($field.modifierStatic)
static ##
#end
$field.type ##
#set($name = $StringUtil.capitalizeWithJavaBeanConvention($StringUtil.sanitizeJavaIdentifier($helper.getPropertyName($field, $project))))
#if ($field.boolean && $field.primitive)
  #if ($StringUtil.startsWithIgnoreCase($name, 'is'))
    #set($name = $StringUtil.decapitalize($name))
  #else
    is##
#end
#else
  get##
#end
${name}() {
  #if ($field.string)
     return $field.name == null ? "" : $field.name;
  #else 
    #if ($field.list)
    if ($field.name == null) {
        return new ArrayList<>();
    }
    return $field.name;
    #else 
    return $field.name;
    #end
  #end
}