title: Error when trying to encode/decode String to Base64
body: <p>I need to do Base64 encoding from byte array to stirng as opposed to another byte array. But when I decode it back I get exception. Here is the code</p>
  
  <p>I'm trying to encode a byte array into a string using Base64 encoding. When I encode, it seems to work, but when I decode it throws an exception. What am I doing wrong?</p>
  
  <pre><code>import org.springframework.security.crypto.codec.Base64;
  
  byte[] bytes = new byte[]{1,2,3,4,5,6,7,8,9};
  String stringToStore = Base64.encode(bytes).toString();
  byte[] restoredBytes = Base64.decode(stringToStore.getBytes());
  </code></pre>
  
  <p>Here is the exception I'm getting:</p>
  
  <pre><code>org.springframework.security.crypto.codec.InvalidBase64CharacterException: Bad Base64 input character decimal 91 in array position 0
  at org.springframework.security.crypto.codec.Base64.decode(Base64.java:625)
  at org.springframework.security.crypto.codec.Base64.decode(Base64.java:246)
  </code></pre>