in flume-jdbc-channel/src/main/java/org/apache/flume/channel/jdbc/impl/PersistableEvent.java [222:232]
public Map<String, String> getHeaders() {
Map<String, String> headerMap = null;
if (headers != null) {
headerMap = new HashMap<String, String>();
for (HeaderEntry entry : headers) {
headerMap.put(entry.getNameString(), entry.getValueString());
}
}
return headerMap;
}