Here you can find the source of toBinary(final Object o)
public static byte[] toBinary(final Object o)
//package com.java2s; /*// w w w.j av a 2s . com * Copyright 2004-2012 the Seasar Foundation and the Others. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, * either express or implied. See the License for the specific language * governing permissions and limitations under the License. */ public class Main { public static byte[] toBinary(final Object o) { if (o instanceof byte[]) { return (byte[]) o; } else if (o == null) { return null; } else if (o instanceof String) { return ((String) o).getBytes(); } else { throw new IllegalArgumentException("Can't parse as binary:" + o); } } }