### Question:
ConfigurationItem implements Serializable { @Override public boolean equals(Object obj) { if (obj instanceof ConfigurationItem) { ConfigurationItem other = (ConfigurationItem) obj; return namespace.equals(other.namespace) && key.equals(other.key) && constraint.equals(other.constraint) && value.equals(other.value); } return false; } ConfigurationItem(final String namespace,
                           final String key,
                           final String description,
                           final ItemConstraint constraint,
                           final String value); String getDescription(); void setDescription(String newDescription); String getKey(); String getNamespace(); String getValue(); void setValue(String newValue); ItemConstraint getConstraint(); void setConstraint(ItemConstraint constraint); @Override boolean equals(Object obj); @Override int hashCode();  }### Answer:
@Test public void testEquals() { ConfigurationItem testItem = new ConfigurationItem("nameSpace2", "key2", null, constraint, null); boolean result = configItem.equals(testItem); assertFalse(result); }