this.credits = this.creditsHidden.getValue().toString();
this.credits = Double.valueOf(this.creditsHidden.getValue().toString());
    public String getCredits() throws FenixFilterException, FenixServiceException {        if (this.credits == null && this.creditsHidden != null && this.creditsHidden.getValue() != null                && !this.creditsHidden.getValue().equals("")) {            this.credits = this.creditsHidden.getValue().toString();        } else if (this.credits == null && this.getPersonFunctionID() != null) {            this.credits = this.getPersonFunction().getCredits().toString();        }        return credits;    }