EDIT

    @Override

    public int hashCode() {

        final int prime = 31;

        int result = 1;

        result = prime * result + ((acronym == null) ? 0 : acronym.hashCode());

        result = prime * result + ((description == null) ? 0 : description.hashCode());

        result = prime * result + ((name == null) ? 0 : name.hashCode());

        result = prime * result + ((uri == null) ? 0 : uri.hashCode());

        return result;

    }

    @Override

    public boolean equals(Object obj) {

        if (this == obj) {

            return true;

        }

        if (obj == null) {

            return false;

        }

        if (getClass() != obj.getClass()) {

            return false;

        }

        TerminologyWrapper other = (TerminologyWrapper) obj;

        if (acronym == null) {

            if (other.acronym != null) {

                return false;

            }

        } else if (!acronym.equals(other.acronym)) {

            return false;

        }

        if (description == null) {

            if (other.description != null) {

                return false;

            }

        } else if (!description.equals(other.description)) {

            return false;

        }

        if (name == null) {

            if (other.name != null) {

                return false;

            }

        } else if (!name.equals(other.name)) {

            return false;

        }

        if (uri == null) {

            if (other.uri != null) {

                return false;

            }

        } else if (!uri.equals(other.uri)) {

            return false;

        }

        return true;

    }