#vulnerable code 
                                public boolean configureCoverage(final GSCoverageEncoder ce, final String wsname,
            final String csname) {
        final String cname = ce.getName();
        if (cname == null) {
            if (LOGGER.isErrorEnabled())
                LOGGER.error("Unable to configure a coverage with no name try using GSCoverageEncoder.setName(String)");
            return false;
        }
        // retrieve coverage name
        GeoServerRESTReader reader;
        try {
            reader = new GeoServerRESTReader(restURL, gsuser, gspass);
        } catch (MalformedURLException e) {
            if (LOGGER.isErrorEnabled())
                LOGGER.error(e.getLocalizedMessage(), e);
            return false;
        }
        final RESTCoverageList covList = reader.getCoverages(wsname, csname);
        if (covList.isEmpty()) {
            if (LOGGER.isErrorEnabled())
                LOGGER.error("No coverages found in new coveragestore " + csname);
            return false;
        }
        final Iterator<NameLinkElem> it = covList.iterator();
        boolean found = false;
        while (it.hasNext()) {
            NameLinkElem nameElem = it.next();
            if (nameElem.getName().equals(cname)) {
                found = true;
                break;
            }
        }
        // if no coverage to configure is found return false
        if (!found) {
            if (LOGGER.isErrorEnabled())
                LOGGER.error("No coverages found in new coveragestore " + csname + " called "
                        + cname);
            return false;
        }

        // configure the selected coverage
        final String url = restURL + "/rest/workspaces/" + wsname + "/coveragestores/" + csname
                + "/coverages/" + cname + ".xml";

        final String xmlBody = ce.toString();
        final String sendResult = HTTPUtils.putXml(url, xmlBody, gsuser, gspass);
        if (sendResult != null) {
            if (LOGGER.isDebugEnabled()) {
                LOGGER.debug("Coverage successfully configured " + wsname + ":" + csname + ":"
                        + cname);
            }
        } else {
            if (LOGGER.isWarnEnabled())
                LOGGER.warn("Error configuring coverage " + wsname + ":" + csname + ":" + cname
                        + " (" + sendResult + ")");
        }

        return sendResult != null;
    } 
                            #location 19 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                public boolean configureCoverage(final GSCoverageEncoder ce, final String wsname,
            final String csname) {
        return configureCoverage(ce, wsname, csname, ce.getName());
    }