### Question:
ClassificationEntityExtension extends InstanceElementHeader { @Override public int hashCode() { return Objects.hash(getClassification(), getEntityToClassify()); } ClassificationEntityExtension();  ClassificationEntityExtension(ClassificationEntityExtension  template); Classification getClassification(); void setClassification(Classification classification); EntityProxy getEntityToClassify(); void setEntityToClassify(EntityProxy entityToClassify); @Override String toString(); @Override boolean equals(Object objectToCompare); @Override int hashCode();  }### Answer:
@Test public void testHash() { assertTrue(getTestObject().hashCode() == getTestObject().hashCode()); assertFalse(getTestObject().hashCode() == new ClassificationEntityExtension().hashCode()); }