PropertiesFile properties = PropertiesIndex.getBaseFile(c);
if (properties != null) {
for (IProperty property : properties.getProperties()) {
String propertyKey = property.getKey();
if (propertyKey != null) {
LookupElementBuilder lookupElementBuilder =
LookupElementBuilder.create(propertyKey)
.withIcon(StdFileTypes.PROPERTIES.getIcon())
.withTypeText(".properties")
.withTailText(" " + property.getValue(), true);
rs.addElement(lookupElementBuilder);