public String doHeapDump(long id, String to, String from, HeapDumpQuery query)
{
String result = null;
try {
result = new HeapDumpAction().execute(query.isRaw(),
_server.getServerId(),
_hprofDir);
} catch (ConfigException e) {
log.log(Level.WARNING, e.getMessage(), e);
result = e.getMessage();