### Question:
AttributeType extends StandardEntity<AttributeType> { @Override public int hashCode() { int hash = 0; hash += (attributeType != null ? attributeType.hashCode() : 0); return hash; } @SuppressWarnings({"squid:S2637", "squid:S1186"})  AttributeType(); void updateNullFlags(); @Override void updateFields(StandardEntity entity); ValidationResult customValidation(); void addOptionalComponentType(String componentType); void addRequiredComponentType(String componentType); @Override int hashCode(); @Override boolean equals(Object object); String getAttributeType(); void setAttributeType(String attributeType); String getDescription(); void setDescription(String description); Boolean getVisibleFlg(); void setVisibleFlg(Boolean visibleFlg); Boolean getRequiredFlg(); void setRequiredFlg(Boolean requiredFlg); Boolean getArchitectureFlg(); void setArchitectureFlg(Boolean architectureFlg); Boolean getImportantFlg(); void setImportantFlg(Boolean importantFlg); Boolean getAllowMultipleFlg(); void setAllowMultipleFlg(Boolean allowMultipleFlg); Boolean getHideOnSubmission(); void setHideOnSubmission(Boolean hideOnSubmission); String getDefaultAttributeCode(); void setDefaultAttributeCode(String defaultAttributeCode); String getDetailedDescription(); void setDetailedDescription(String detailedDescription); List<ComponentTypeRestriction> getRequiredRestrictions(); void setRequiredRestrictions(List<ComponentTypeRestriction> requiredRestrictions); List<ComponentTypeRestriction> getAssociatedComponentTypes(); void setAssociatedComponentTypes(List<ComponentTypeRestriction> associatedComponentTypes); Boolean getAllowUserGeneratedCodes(); void setAllowUserGeneratedCodes(Boolean allowUserGeneratedCodes); String getAttributeValueType(); void setAttributeValueType(String attributeValueType); List<ComponentTypeRestriction> getOptionalRestrictions(); void setOptionalRestrictions(List<ComponentTypeRestriction> optionalRestrictions); static final String FIELD_ATTRIBUTE_TYPE; static final String TYPE; static final String DI2ELEVEL; }### Answer:
@Test public void testHashCode() { System.out.println("hashCode"); AttributeType instance = new AttributeType(); int expResult = 0; int result = instance.hashCode(); assertEquals(expResult, result); }