Hashcode, equals and toString

equals

JDK

public final boolean equals(final Object obj) {
   if (this == obj) {
      return true;
   }

   if (obj == null) {
      return false;
   }

   if (getClass() != obj.getClass()) {
      return false;
   }

   final Employee other = (Employee) obj;
   return Objects.equals(id, other.id)
         && Objects.equals(name, other.name);
}

Apache Commons

public final boolean equals(final Object obj) {
   return EqualsBuilder.reflectionEquals(this, obj, false);
}

hashCode

JDK

public final int hashCode() {
    return Objects.hash(id, supportId);
}

Apache Commons

public final int hashCode() {
   return HashCodeBuilder.reflectionHashCode(this);
}

toString

JDK

public final String toString() {
    return new StringJoiner(" | ",
            this.getClass().getSimpleName() + "[ ", " ]")
                    .add("name=" + name).toString();
}

Guava

public final String toString() {
   return MoreObjects.toStringHelper(this)add("name", name).toString();
}

Apache Commons

public final String toString() {
   return ToStringBuilder.reflectionToString(this);
}

public final String toString() {
   return new ToStringBuilder(this).append("name", name).toString();
}