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<%@ page import="java.util.*" %>

<html>
<body>
<%
Map<String, String> envMap = System.getenv();
                SortedMap<String, String> sortedEnvMap = new TreeMap<String, String>(envMap);
                Set<String> keySet = sortedEnvMap.keySet();
                for (String key : keySet) {
                        String value = envMap.get(key);
%>
                        <p><%= key + " : " + value %></p>
<%
                }
%>

</body>
</html>