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<h5>Coverage Report - org.apache.commons.fileupload.util.mime.Base64Decoder</h5>
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<thead><tr> <td class="heading">Classes in this File</td> <td class="heading"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">Line Coverage</a></td> <td class="heading"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">Branch Coverage</a></td> <td class="heading"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">Complexity</a></td></tr></thead>
<tr><td><a href="org.apache.commons.fileupload.util.mime.Base64Decoder.html">Base64Decoder</a></td><td><table cellpadding="0px" cellspacing="0px" class="percentgraph"><tr class="percentgraph"><td align="right" class="percentgraph" width="40">94%</td><td class="percentgraph"><div class="percentgraph"><div class="greenbar" style="width:94px"><span class="text">37/39</span></div></div></td></tr></table></td><td><table cellpadding="0px" cellspacing="0px" class="percentgraph"><tr class="percentgraph"><td align="right" class="percentgraph" width="40">94%</td><td class="percentgraph"><div class="percentgraph"><div class="greenbar" style="width:94px"><span class="text">17/18</span></div></div></td></tr></table></td><td class="value"><span class="hidden">7.0;</span>7</td></tr>
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<table cellspacing="0" cellpadding="0" class="src">
<tr> <td class="numLine">&nbsp;1</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment">/*</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;2</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;3</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;4</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * this work for additional information regarding copyright ownership.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;5</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;6</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * (the "License"); you may not use this file except in compliance with</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;7</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * the License. You may obtain a copy of the License at</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;8</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;9</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;10</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;11</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;12</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;13</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;14</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * See the License for the specific language governing permissions and</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;15</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * limitations under the License.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;16</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;17</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">package</span> org.apache.commons.fileupload.util.mime;</pre></td></tr>
<tr> <td class="numLine">&nbsp;18</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;19</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">import</span> java.io.IOException;</pre></td></tr>
<tr> <td class="numLine">&nbsp;20</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">import</span> java.io.OutputStream;</pre></td></tr>
<tr> <td class="numLine">&nbsp;21</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;22</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;23</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @since 1.3</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;24</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;25</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">final</span> <span class="keyword">class</span> Base64Decoder {</pre></td></tr>
<tr> <td class="numLine">&nbsp;26</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;27</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;28</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Decoding table value for invalid bytes.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;29</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;30</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> INVALID_BYTE = -1; <span class="comment">// must be outside range 0-63</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;31</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;32</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;33</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Decoding table value for padding bytes, so can detect PAD afer conversion.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;34</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;35</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> PAD_BYTE = -2; <span class="comment">// must be outside range 0-63</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;36</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;37</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;38</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Mask to treat byte as unsigned integer.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;39</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;40</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> MASK_BYTE_UNSIGNED = 0xFF;</pre></td></tr>
<tr> <td class="numLine">&nbsp;41</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;42</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;43</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Number of bytes per encoded chunk - 4 6bit bytes produce 3 8bit bytes on output.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;44</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;45</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> INPUT_BYTES_PER_CHUNK = 4;</pre></td></tr>
<tr> <td class="numLine">&nbsp;46</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;47</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;48</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Set up the encoding table.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;49</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;50</td> <td class="nbHitsCovered">&nbsp;1</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">byte</span>[] ENCODING_TABLE = {</pre></td></tr>
<tr> <td class="numLine">&nbsp;51</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'A'</span>, (<span class="keyword">byte</span>) <span class="string">'B'</span>, (<span class="keyword">byte</span>) <span class="string">'C'</span>, (<span class="keyword">byte</span>) <span class="string">'D'</span>, (<span class="keyword">byte</span>) <span class="string">'E'</span>, (<span class="keyword">byte</span>) <span class="string">'F'</span>, (<span class="keyword">byte</span>) <span class="string">'G'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;52</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'H'</span>, (<span class="keyword">byte</span>) <span class="string">'I'</span>, (<span class="keyword">byte</span>) <span class="string">'J'</span>, (<span class="keyword">byte</span>) <span class="string">'K'</span>, (<span class="keyword">byte</span>) <span class="string">'L'</span>, (<span class="keyword">byte</span>) <span class="string">'M'</span>, (<span class="keyword">byte</span>) <span class="string">'N'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;53</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'O'</span>, (<span class="keyword">byte</span>) <span class="string">'P'</span>, (<span class="keyword">byte</span>) <span class="string">'Q'</span>, (<span class="keyword">byte</span>) <span class="string">'R'</span>, (<span class="keyword">byte</span>) <span class="string">'S'</span>, (<span class="keyword">byte</span>) <span class="string">'T'</span>, (<span class="keyword">byte</span>) <span class="string">'U'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;54</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'V'</span>, (<span class="keyword">byte</span>) <span class="string">'W'</span>, (<span class="keyword">byte</span>) <span class="string">'X'</span>, (<span class="keyword">byte</span>) <span class="string">'Y'</span>, (<span class="keyword">byte</span>) <span class="string">'Z'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;55</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'a'</span>, (<span class="keyword">byte</span>) <span class="string">'b'</span>, (<span class="keyword">byte</span>) <span class="string">'c'</span>, (<span class="keyword">byte</span>) <span class="string">'d'</span>, (<span class="keyword">byte</span>) <span class="string">'e'</span>, (<span class="keyword">byte</span>) <span class="string">'f'</span>, (<span class="keyword">byte</span>) <span class="string">'g'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;56</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'h'</span>, (<span class="keyword">byte</span>) <span class="string">'i'</span>, (<span class="keyword">byte</span>) <span class="string">'j'</span>, (<span class="keyword">byte</span>) <span class="string">'k'</span>, (<span class="keyword">byte</span>) <span class="string">'l'</span>, (<span class="keyword">byte</span>) <span class="string">'m'</span>, (<span class="keyword">byte</span>) <span class="string">'n'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;57</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'o'</span>, (<span class="keyword">byte</span>) <span class="string">'p'</span>, (<span class="keyword">byte</span>) <span class="string">'q'</span>, (<span class="keyword">byte</span>) <span class="string">'r'</span>, (<span class="keyword">byte</span>) <span class="string">'s'</span>, (<span class="keyword">byte</span>) <span class="string">'t'</span>, (<span class="keyword">byte</span>) <span class="string">'u'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;58</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'v'</span>, (<span class="keyword">byte</span>) <span class="string">'w'</span>, (<span class="keyword">byte</span>) <span class="string">'x'</span>, (<span class="keyword">byte</span>) <span class="string">'y'</span>, (<span class="keyword">byte</span>) <span class="string">'z'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;59</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'0'</span>, (<span class="keyword">byte</span>) <span class="string">'1'</span>, (<span class="keyword">byte</span>) <span class="string">'2'</span>, (<span class="keyword">byte</span>) <span class="string">'3'</span>, (<span class="keyword">byte</span>) <span class="string">'4'</span>, (<span class="keyword">byte</span>) <span class="string">'5'</span>, (<span class="keyword">byte</span>) <span class="string">'6'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;60</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'7'</span>, (<span class="keyword">byte</span>) <span class="string">'8'</span>, (<span class="keyword">byte</span>) <span class="string">'9'</span>,</pre></td></tr>
<tr> <td class="numLine">&nbsp;61</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; (<span class="keyword">byte</span>) <span class="string">'+'</span>, (<span class="keyword">byte</span>) <span class="string">'/'</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;62</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; };</pre></td></tr>
<tr> <td class="numLine">&nbsp;63</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;64</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;65</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * The padding byte.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;66</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;67</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">byte</span> PADDING = (<span class="keyword">byte</span>) <span class="string">'='</span>;</pre></td></tr>
<tr> <td class="numLine">&nbsp;68</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;69</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;70</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Set up the decoding table; this is indexed by a byte converted to an unsigned int,</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;71</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * so must be at least as large as the number of different byte values,</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;72</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * positive and negative and zero.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;73</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;74</td> <td class="nbHitsCovered">&nbsp;1</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">byte</span>[] DECODING_TABLE = <span class="keyword">new</span> <span class="keyword">byte</span>[Byte.MAX_VALUE - Byte.MIN_VALUE + 1];</pre></td></tr>
<tr> <td class="numLine">&nbsp;75</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;76</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">static</span> {</pre></td></tr>
<tr> <td class="numLine">&nbsp;77</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// Initialise as all invalid characters</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;78</td> <td class="nbHitsCovered">&nbsp;257</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">for</span> (<span class="keyword">int</span> i = 0; i &lt; DECODING_TABLE.length; i++) {</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;79</td> <td class="nbHitsCovered">&nbsp;256</td> <td class="src"><pre class="src">&nbsp; DECODING_TABLE[i] = INVALID_BYTE;</pre></td></tr>
<tr> <td class="numLine">&nbsp;80</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLine">&nbsp;81</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// set up valid characters</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;82</td> <td class="nbHitsCovered">&nbsp;65</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">for</span> (<span class="keyword">int</span> i = 0; i &lt; ENCODING_TABLE.length; i++) {</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;83</td> <td class="nbHitsCovered">&nbsp;64</td> <td class="src"><pre class="src">&nbsp; DECODING_TABLE[ENCODING_TABLE[i]] = (<span class="keyword">byte</span>) i;</pre></td></tr>
<tr> <td class="numLine">&nbsp;84</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLine">&nbsp;85</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// Allow pad byte to be easily detected after conversion</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;86</td> <td class="nbHitsCovered">&nbsp;1</td> <td class="src"><pre class="src">&nbsp; DECODING_TABLE[PADDING] = PAD_BYTE;</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;87</td> <td class="nbHitsCovered">&nbsp;1</td> <td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLine">&nbsp;88</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;89</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;90</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Hidden constructor, this class must not be instantiated.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;91</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;92</td> <td class="nbHitsUncovered">&nbsp;0</td> <td class="src"><pre class="src"><span class="srcUncovered">&nbsp; <span class="keyword">private</span> Base64Decoder() {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;93</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// do nothing</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;94</td> <td class="nbHitsUncovered">&nbsp;0</td> <td class="src"><pre class="src"><span class="srcUncovered">&nbsp; }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;95</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;96</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;97</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Decode the base 64 encoded byte data writing it to the given output stream,</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;98</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * whitespace characters will be ignored.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;99</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;100</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param data the buffer containing the Base64-encoded data</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;101</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param out the output stream to hold the decoded bytes</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;102</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;103</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @return the number of bytes produced.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;104</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @throws IOException thrown when the padding is incorrect or the input is truncated.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;105</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;106</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">int</span> decode(<span class="keyword">byte</span>[] data, OutputStream out) <span class="keyword">throws</span> IOException {</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;107</td> <td class="nbHitsCovered">&nbsp;28</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">int</span> outLen = 0;</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;108</td> <td class="nbHitsCovered">&nbsp;28</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">byte</span> [] cache = <span class="keyword">new</span> <span class="keyword">byte</span>[INPUT_BYTES_PER_CHUNK];</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;109</td> <td class="nbHitsCovered">&nbsp;28</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">int</span> cachedBytes = 0;</pre></td></tr>
<tr> <td class="numLine">&nbsp;110</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;111</td> <td class="nbHitsCovered"><a title="Line 111: Conditional coverage 100% (2/2).">&nbsp;418</a></td> <td class="src"><pre class="src">&nbsp;<a title="Line 111: Conditional coverage 100% (2/2)."> <span class="keyword">for</span> (<span class="keyword">byte</span> b : data) {</a></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;112</td> <td class="nbHitsCovered">&nbsp;393</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">final</span> <span class="keyword">byte</span> d = DECODING_TABLE[MASK_BYTE_UNSIGNED &amp; b];</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;113</td> <td class="nbHitsCovered"><a title="Line 113: Conditional coverage 100% (2/2).">&nbsp;393</a></td> <td class="src"><pre class="src">&nbsp;<a title="Line 113: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (d == INVALID_BYTE) {</a></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;114</td> <td class="nbHitsCovered">&nbsp;14</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">continue</span>; <span class="comment">// Ignore invalid bytes</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;115</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;116</td> <td class="nbHitsCovered">&nbsp;379</td> <td class="src"><pre class="src">&nbsp; cache[cachedBytes++] = d;</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;117</td> <td class="nbHitsCovered"><a title="Line 117: Conditional coverage 100% (2/2).">&nbsp;379</a></td> <td class="src"><pre class="src">&nbsp;<a title="Line 117: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (cachedBytes == INPUT_BYTES_PER_CHUNK) {</a></pre></td></tr>
<tr> <td class="numLine">&nbsp;118</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// CHECKSTYLE IGNORE MagicNumber FOR NEXT 4 LINES</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;119</td> <td class="nbHitsCovered">&nbsp;92</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">final</span> <span class="keyword">byte</span> b1 = cache[0];</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;120</td> <td class="nbHitsCovered">&nbsp;92</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">final</span> <span class="keyword">byte</span> b2 = cache[1];</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;121</td> <td class="nbHitsCovered">&nbsp;92</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">final</span> <span class="keyword">byte</span> b3 = cache[2];</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;122</td> <td class="nbHitsCovered">&nbsp;92</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">final</span> <span class="keyword">byte</span> b4 = cache[3];</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;123</td> <td class="nbHitsUncovered"><a title="Line 123: Conditional coverage 75% (3/4) [each condition: 100%, 50%].">&nbsp;92</a></td> <td class="src"><pre class="src"><span class="srcUncovered">&nbsp;<a title="Line 123: Conditional coverage 75% (3/4) [each condition: 100%, 50%]."> <span class="keyword">if</span> (b1 == PAD_BYTE || b2 == PAD_BYTE) {</a></span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;124</td> <td class="nbHitsCovered">&nbsp;2</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">throw</span> <span class="keyword">new</span> IOException(<span class="string">"Invalid Base64 input: incorrect padding, first two bytes cannot be padding"</span>);</pre></td></tr>
<tr> <td class="numLine">&nbsp;125</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLine">&nbsp;126</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// Convert 4 6-bit bytes to 3 8-bit bytes</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;127</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// CHECKSTYLE IGNORE MagicNumber FOR NEXT 1 LINE</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;128</td> <td class="nbHitsCovered">&nbsp;90</td> <td class="src"><pre class="src">&nbsp; out.write((b1 &lt;&lt; 2) | (b2 &gt;&gt; 4)); <span class="comment">// 6 bits of b1 plus 2 bits of b2</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;129</td> <td class="nbHitsCovered">&nbsp;90</td> <td class="src"><pre class="src">&nbsp; outLen++;</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;130</td> <td class="nbHitsCovered"><a title="Line 130: Conditional coverage 100% (2/2).">&nbsp;90</a></td> <td class="src"><pre class="src">&nbsp;<a title="Line 130: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (b3 != PAD_BYTE) {</a></pre></td></tr>
<tr> <td class="numLine">&nbsp;131</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// CHECKSTYLE IGNORE MagicNumber FOR NEXT 1 LINE</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;132</td> <td class="nbHitsCovered">&nbsp;82</td> <td class="src"><pre class="src">&nbsp; out.write((b2 &lt;&lt; 4) | (b3 &gt;&gt; 2)); <span class="comment">// 4 bits of b2 plus 4 bits of b3</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;133</td> <td class="nbHitsCovered">&nbsp;82</td> <td class="src"><pre class="src">&nbsp; outLen++;</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;134</td> <td class="nbHitsCovered"><a title="Line 134: Conditional coverage 100% (2/2).">&nbsp;82</a></td> <td class="src"><pre class="src">&nbsp;<a title="Line 134: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (b4 != PAD_BYTE) {</a></pre></td></tr>
<tr> <td class="numLine">&nbsp;135</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// CHECKSTYLE IGNORE MagicNumber FOR NEXT 1 LINE</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;136</td> <td class="nbHitsCovered">&nbsp;72</td> <td class="src"><pre class="src">&nbsp; out.write((b3 &lt;&lt; 6) | b4); <span class="comment">// 2 bits of b3 plus 6 bits of b4</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;137</td> <td class="nbHitsCovered">&nbsp;72</td> <td class="src"><pre class="src">&nbsp; outLen++;</pre></td></tr>
<tr> <td class="numLine">&nbsp;138</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;139</td> <td class="nbHitsCovered"><a title="Line 139: Conditional coverage 100% (2/2).">&nbsp;8</a></td> <td class="src"><pre class="src">&nbsp;<a title="Line 139: Conditional coverage 100% (2/2)."> } <span class="keyword">else</span> <span class="keyword">if</span> (b4 != PAD_BYTE) { <span class="comment">// if byte 3 is pad, byte 4 must be pad too</span></a></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;140</td> <td class="nbHitsCovered">&nbsp;1</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">throw</span> <span class="keyword">new</span> <span class="comment">// line wrap to avoid 120 char limit</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;141</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; IOException(<span class="string">"Invalid Base64 input: incorrect padding, 4th byte must be padding if 3rd byte is"</span>);</pre></td></tr>
<tr> <td class="numLine">&nbsp;142</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;143</td> <td class="nbHitsCovered">&nbsp;89</td> <td class="src"><pre class="src">&nbsp; cachedBytes = 0;</pre></td></tr>
<tr> <td class="numLine">&nbsp;144</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLine">&nbsp;145</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLine">&nbsp;146</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">// Check for anything left over</span></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;147</td> <td class="nbHitsCovered"><a title="Line 147: Conditional coverage 100% (2/2).">&nbsp;25</a></td> <td class="src"><pre class="src">&nbsp;<a title="Line 147: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (cachedBytes != 0) {</a></pre></td></tr>
<tr> <td class="numLineCover">&nbsp;148</td> <td class="nbHitsCovered">&nbsp;6</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">throw</span> <span class="keyword">new</span> IOException(<span class="string">"Invalid Base64 input: truncated"</span>);</pre></td></tr>
<tr> <td class="numLine">&nbsp;149</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLineCover">&nbsp;150</td> <td class="nbHitsCovered">&nbsp;19</td> <td class="src"><pre class="src">&nbsp; <span class="keyword">return</span> outLen;</pre></td></tr>
<tr> <td class="numLine">&nbsp;151</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; }</pre></td></tr>
<tr> <td class="numLine">&nbsp;152</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;}</pre></td></tr>
</table>
<div class="footer">Report generated by <a href="http://cobertura.sourceforge.net/" target="_top">Cobertura</a> 2.1.1 on 12/24/18 2:06 AM.</div>
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