### Question:
Rule implements Serializable { @Override public boolean equals(final java.lang.Object obj) { boolean ret = false; if(this == obj) { ret = true; } else if(obj instanceof Rule) { final Rule r = ((Rule)obj); ret = Objects.equals(value, r.value) && Objects.equals(tag, r.tag) && Objects.equals(id, r.id) ; } return ret; } Rule();  Rule(final String value, final String tag);  Rule(final String value, final String tag, final Long id); String getValue(); void setValue(final String value); String getTag(); void setTag(final String value); Long getId(); void setId(final Long id); @Override boolean equals(final java.lang.Object obj); @Override int hashCode(); @Override String toString();  }### Answer:
@Test public void testEquals() { assertEquals(new Rule(null, null), new Rule(null, null)); assertEquals(new Rule("a", null), new Rule("a", null)); assertEquals(new Rule(null, "a"), new Rule(null, "a")); assertEquals(new Rule("a", "b"), new Rule("a", "b")); assertEquals(new Rule("a", "b", 1L), new Rule("a", "b", 1L)); }