in flume-jdbc-channel/src/main/java/org/apache/flume/channel/jdbc/impl/PersistableEvent.java [281:291]
public Builder setHeaderNameSpill(long headerId, String nameSpill) {
HeaderPart hp = bHeaderParts.get(headerId);
if (hp == null) {
throw new JdbcChannelException("Header not found for spill: "
+ headerId);
}
hp.setSpillName(nameSpill);
return this;
}