int numConfigs = in.readInt();
for (int i = 0; i < numConfigs; i++) {
ImmutableBytesWritable key = new ImmutableBytesWritable();
ImmutableBytesWritable val = new ImmutableBytesWritable();
key.readFields(in);
val.readFields(in);
configuration.put(
Bytes.toString(key.get(), key.getOffset(), key.getLength()),
Bytes.toString(val.get(), val.getOffset(), val.getLength()));
}
}