JSF datatable example

@ManagedBean
@ApplicationScoped
public class ApplicationBB extends BaseBackingBean {
    public List<SystemProperty> getSystemProperties(){
        List<SystemProperty> result = new ArrayList<SystemProperty>();
        Properties props = System.getProperties();
        SortedMap<String,String> sortedSystemProperties = new TreeMap(props);
        Set<String> keySet = sortedSystemProperties.keySet();
        Iterator<String> iterator = keySet.iterator();
        while (iterator.hasNext()) {
            String key = iterator.next();
            result.add (new SystemProperty(key, props.getProperty(key)));
        }
        return result;
    }

    public class SystemProperty implements Serializable{
        private static final long serialVersionUID = 1L;
        private final String key;
        private final String value;
        public SystemProperty(String key, String value) {
            super();
            this.key = key;
            this.value = value;
        }
        public String getKey() {
            return key;
        }

        public String getValue() {
            return value;
       }
    }
}

<ui:composition xmlns="http://www.w3.org/1999/xhtml"
   xmlns:h="http://java.sun.com/jsf/html"
   xmlns:f="http://java.sun.com/jsf/core"
   xmlns:ui="http://java.sun.com/jsf/facelets"
   xmlns:c="http://java.sun.com/jsp/jstl/core"
   xmlns:p="http://primefaces.prime.com.tr/ui"
   xmlns:t="http://myfaces.apache.org/tomahawk"
   template="/common/template.xhtml">


<ui:define name="title">
    <ubiteck:text key="system"/>
</ui:define>



<ui:define name="content">
<h3>System</h3>
<h:dataTable id="systemPropertiesTable" value="#{applicationBB.systemProperties}" var="prop">
    <h:column>
        <f:facet name="header"><h:outputText style="font-weight: bold;" value="Key"/></f:facet>
        #{prop.key}
    </h:column>
    <h:column>
        <f:facet name="header"><h:outputText style="font-weight: bold;" value="value"/></f:facet>
        #{prop.value}
    </h:column>
</h:dataTable>
</ui:define>
</ui:composition>

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