@Override public MutableFieldDef getMutableFieldDef(FieldDef fieldDef) { if (fieldDef != null) { FieldDefImpl fieldDefImpl = new FieldDefImpl(); fieldDefImpl.setName(fieldDef.getName()); fieldDefImpl.setSearchDefinition(fieldDef.getSearchDefinition()); fieldDefImpl.setValueDef(fieldDef.getValueDef()); fieldDefImpl.setVariations(fieldDef.getVariations().values()); fieldDefImpl.setFieldStandaloneUpdateAble(true); fieldDefImpl.setRequired(true); return fieldDefImpl; } else { throw new IllegalArgumentException("Argument can not be null."); } }