ClobImpl(Object callerReference, String clob) { if (clob == null) { throw new IllegalArgumentException("clob cannot be null."); }  _clob = clob; _connection = Support.getConnection(callerReference);
ClobImpl(ConnectionJDBC2 connection) { this(connection, EMPTY_CLOB);
    ClobImpl(Object callerReference, String clob) {        if (clob == null) {            throw new IllegalArgumentException("clob cannot be null.");        }        _clob = clob;        _connection = Support.getConnection(callerReference);    }