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From bode...@apache.org
Subject svn commit: r854484 [37/43] - in /websites/production/commons/content/proper/commons-compress: ./ apidocs/ apidocs/org/apache/commons/compress/archivers/ apidocs/org/apache/commons/compress/archivers/ar/ apidocs/org/apache/commons/compress/archivers/ar...
Date Thu, 14 Mar 2013 17:11:35 GMT
Modified: websites/production/commons/content/proper/commons-compress/xref/org/apache/commons/compress/archivers/zip/X7875_NewUnix.html
==============================================================================
--- websites/production/commons/content/proper/commons-compress/xref/org/apache/commons/compress/archivers/zip/X7875_NewUnix.html (original)
+++ websites/production/commons/content/proper/commons-compress/xref/org/apache/commons/compress/archivers/zip/X7875_NewUnix.html Thu Mar 14 17:10:39 2013
@@ -52,299 +52,300 @@
 <a class="jxr_linenumber" name="42" href="#42">42</a>  <em class="jxr_javadoccomment"> * GIDSize       1 byte      Size of GID field</em>
 <a class="jxr_linenumber" name="43" href="#43">43</a>  <em class="jxr_javadoccomment"> * GID           Variable    GID for this entry (little endian)</em>
 <a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment"> * &lt;/pre&gt;</em>
-<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/X7875_NewUnix.html">X7875_NewUnix</a> <strong class="jxr_keyword">implements</strong> ZipExtraField, Cloneable, Serializable {
-<a class="jxr_linenumber" name="47" href="#47">47</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a> HEADER_ID = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a>(0x7875);
-<a class="jxr_linenumber" name="48" href="#48">48</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> BigInteger ONE_THOUSAND = BigInteger.valueOf(1000);
-<a class="jxr_linenumber" name="49" href="#49">49</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> serialVersionUID = 1L;
-<a class="jxr_linenumber" name="50" href="#50">50</a>  
-<a class="jxr_linenumber" name="51" href="#51">51</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> version = 1; <em class="jxr_comment">// always '1' according to current info-zip spec.</em>
-<a class="jxr_linenumber" name="52" href="#52">52</a>  
-<a class="jxr_linenumber" name="53" href="#53">53</a>      <em class="jxr_comment">// BigInteger helps us with little-endian / big-endian conversions.</em>
-<a class="jxr_linenumber" name="54" href="#54">54</a>      <em class="jxr_comment">// (thanks to BigInteger.toByteArray() and a reverse() method we created).</em>
-<a class="jxr_linenumber" name="55" href="#55">55</a>      <em class="jxr_comment">// Also, the spec theoretically allows UID/GID up to 255 bytes long!</em>
-<a class="jxr_linenumber" name="56" href="#56">56</a>      <em class="jxr_comment">//</em>
-<a class="jxr_linenumber" name="57" href="#57">57</a>      <em class="jxr_comment">// NOTE:  equals() and hashCode() currently assume these can never be null.</em>
-<a class="jxr_linenumber" name="58" href="#58">58</a>      <strong class="jxr_keyword">private</strong> BigInteger uid;
-<a class="jxr_linenumber" name="59" href="#59">59</a>      <strong class="jxr_keyword">private</strong> BigInteger gid;
-<a class="jxr_linenumber" name="60" href="#60">60</a>  
-<a class="jxr_linenumber" name="61" href="#61">61</a>      <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="62" href="#62">62</a>  <em class="jxr_javadoccomment">     * Constructor for X7875_NewUnix.</em>
-<a class="jxr_linenumber" name="63" href="#63">63</a>  <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="64" href="#64">64</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/X7875_NewUnix.html">X7875_NewUnix</a>() {
-<a class="jxr_linenumber" name="65" href="#65">65</a>          reset();
-<a class="jxr_linenumber" name="66" href="#66">66</a>      }
-<a class="jxr_linenumber" name="67" href="#67">67</a>  
-<a class="jxr_linenumber" name="68" href="#68">68</a>      <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="69" href="#69">69</a>  <em class="jxr_javadoccomment">     * The Header-ID.</em>
-<a class="jxr_linenumber" name="70" href="#70">70</a>  <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="71" href="#71">71</a>  <em class="jxr_javadoccomment">     * @return the value for the header id for this extrafield</em>
-<a class="jxr_linenumber" name="72" href="#72">72</a>  <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="73" href="#73">73</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a> getHeaderId() {
-<a class="jxr_linenumber" name="74" href="#74">74</a>          <strong class="jxr_keyword">return</strong> HEADER_ID;
-<a class="jxr_linenumber" name="75" href="#75">75</a>      }
-<a class="jxr_linenumber" name="76" href="#76">76</a>  
-<a class="jxr_linenumber" name="77" href="#77">77</a>      <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="78" href="#78">78</a>  <em class="jxr_javadoccomment">     * Gets the UID as a long.  UID is typically a 32 bit unsigned</em>
-<a class="jxr_linenumber" name="79" href="#79">79</a>  <em class="jxr_javadoccomment">     * value on most UNIX systems, so we return a long to avoid</em>
-<a class="jxr_linenumber" name="80" href="#80">80</a>  <em class="jxr_javadoccomment">     * integer overflow into the negatives in case values above</em>
-<a class="jxr_linenumber" name="81" href="#81">81</a>  <em class="jxr_javadoccomment">     * and including 2^31 are being used.</em>
-<a class="jxr_linenumber" name="82" href="#82">82</a>  <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="83" href="#83">83</a>  <em class="jxr_javadoccomment">     * @return the UID value.</em>
-<a class="jxr_linenumber" name="84" href="#84">84</a>  <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="85" href="#85">85</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getUID() { <strong class="jxr_keyword">return</strong> ZipUtil.bigToLong(uid); }
-<a class="jxr_linenumber" name="86" href="#86">86</a>  
-<a class="jxr_linenumber" name="87" href="#87">87</a>      <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="88" href="#88">88</a>  <em class="jxr_javadoccomment">     * Gets the GID as a long.  GID is typically a 32 bit unsigned</em>
-<a class="jxr_linenumber" name="89" href="#89">89</a>  <em class="jxr_javadoccomment">     * value on most UNIX systems, so we return a long to avoid</em>
-<a class="jxr_linenumber" name="90" href="#90">90</a>  <em class="jxr_javadoccomment">     * integer overflow into the negatives in case values above</em>
-<a class="jxr_linenumber" name="91" href="#91">91</a>  <em class="jxr_javadoccomment">     * and including 2^31 are being used.</em>
-<a class="jxr_linenumber" name="92" href="#92">92</a>  <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="93" href="#93">93</a>  <em class="jxr_javadoccomment">     * @return the GID value.</em>
-<a class="jxr_linenumber" name="94" href="#94">94</a>  <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="95" href="#95">95</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getGID() { <strong class="jxr_keyword">return</strong> ZipUtil.bigToLong(gid); }
-<a class="jxr_linenumber" name="96" href="#96">96</a>  
-<a class="jxr_linenumber" name="97" href="#97">97</a>      <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="98" href="#98">98</a>  <em class="jxr_javadoccomment">     * Sets the UID.</em>
-<a class="jxr_linenumber" name="99" href="#99">99</a>  <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="100" href="#100">100</a> <em class="jxr_javadoccomment">     * @param l UID value to set on this extra field.</em>
-<a class="jxr_linenumber" name="101" href="#101">101</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="102" href="#102">102</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setUID(<strong class="jxr_keyword">long</strong> l) {
-<a class="jxr_linenumber" name="103" href="#103">103</a>         <strong class="jxr_keyword">this</strong>.uid = ZipUtil.longToBig(l);
-<a class="jxr_linenumber" name="104" href="#104">104</a>     }
-<a class="jxr_linenumber" name="105" href="#105">105</a> 
-<a class="jxr_linenumber" name="106" href="#106">106</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="107" href="#107">107</a> <em class="jxr_javadoccomment">     * Sets the GID.</em>
-<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment">     * @param l GID value to set on this extra field.</em>
-<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="111" href="#111">111</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setGID(<strong class="jxr_keyword">long</strong> l) {
-<a class="jxr_linenumber" name="112" href="#112">112</a>         <strong class="jxr_keyword">this</strong>.gid = ZipUtil.longToBig(l);
-<a class="jxr_linenumber" name="113" href="#113">113</a>     }
-<a class="jxr_linenumber" name="114" href="#114">114</a> 
-<a class="jxr_linenumber" name="115" href="#115">115</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment">     * Length of the extra field in the local file data - without</em>
-<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment">     * Header-ID or length specifier.</em>
-<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment">     * @return a &lt;code&gt;ZipShort&lt;/code&gt; for the length of the data of this extra field</em>
-<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="121" href="#121">121</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a> getLocalFileDataLength() {
-<a class="jxr_linenumber" name="122" href="#122">122</a>         <strong class="jxr_keyword">int</strong> uidSize = trimLeadingZeroesForceMinLength(uid.toByteArray()).length;
-<a class="jxr_linenumber" name="123" href="#123">123</a>         <strong class="jxr_keyword">int</strong> gidSize = trimLeadingZeroesForceMinLength(gid.toByteArray()).length;
-<a class="jxr_linenumber" name="124" href="#124">124</a> 
-<a class="jxr_linenumber" name="125" href="#125">125</a>         <em class="jxr_comment">// The 3 comes from:  version=1 + uidsize=1 + gidsize=1</em>
-<a class="jxr_linenumber" name="126" href="#126">126</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a>(3 + uidSize + gidSize);
-<a class="jxr_linenumber" name="127" href="#127">127</a>     }
-<a class="jxr_linenumber" name="128" href="#128">128</a> 
-<a class="jxr_linenumber" name="129" href="#129">129</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="130" href="#130">130</a> <em class="jxr_javadoccomment">     * Length of the extra field in the central directory data - without</em>
-<a class="jxr_linenumber" name="131" href="#131">131</a> <em class="jxr_javadoccomment">     * Header-ID or length specifier.</em>
-<a class="jxr_linenumber" name="132" href="#132">132</a> <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment">     * @return a &lt;code&gt;ZipShort&lt;/code&gt; for the length of the data of this extra field</em>
-<a class="jxr_linenumber" name="134" href="#134">134</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="135" href="#135">135</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a> getCentralDirectoryLength() {
-<a class="jxr_linenumber" name="136" href="#136">136</a>         <strong class="jxr_keyword">return</strong> getLocalFileDataLength();  <em class="jxr_comment">// No different than local version.</em>
-<a class="jxr_linenumber" name="137" href="#137">137</a>     }
-<a class="jxr_linenumber" name="138" href="#138">138</a> 
-<a class="jxr_linenumber" name="139" href="#139">139</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="140" href="#140">140</a> <em class="jxr_javadoccomment">     * The actual data to put into local file data - without Header-ID</em>
-<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment">     * or length specifier.</em>
-<a class="jxr_linenumber" name="142" href="#142">142</a> <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment">     * @return get the data</em>
-<a class="jxr_linenumber" name="144" href="#144">144</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="145" href="#145">145</a>     <strong class="jxr_keyword">public</strong> byte[] getLocalFileDataData() {
-<a class="jxr_linenumber" name="146" href="#146">146</a>         byte[] uidBytes = uid.toByteArray();
-<a class="jxr_linenumber" name="147" href="#147">147</a>         byte[] gidBytes = gid.toByteArray();
-<a class="jxr_linenumber" name="148" href="#148">148</a> 
-<a class="jxr_linenumber" name="149" href="#149">149</a>         <em class="jxr_comment">// BigInteger might prepend a leading-zero to force a positive representation</em>
-<a class="jxr_linenumber" name="150" href="#150">150</a>         <em class="jxr_comment">// (e.g., so that the sign-bit is set to zero).  We need to remove that</em>
-<a class="jxr_linenumber" name="151" href="#151">151</a>         <em class="jxr_comment">// before sending the number over the wire.</em>
-<a class="jxr_linenumber" name="152" href="#152">152</a>         uidBytes = trimLeadingZeroesForceMinLength(uidBytes);
-<a class="jxr_linenumber" name="153" href="#153">153</a>         gidBytes = trimLeadingZeroesForceMinLength(gidBytes);
-<a class="jxr_linenumber" name="154" href="#154">154</a> 
-<a class="jxr_linenumber" name="155" href="#155">155</a>         <em class="jxr_comment">// Couldn't bring myself to just call getLocalFileDataLength() when we've</em>
-<a class="jxr_linenumber" name="156" href="#156">156</a>         <em class="jxr_comment">// already got the arrays right here.  Yeah, yeah, I know, premature</em>
-<a class="jxr_linenumber" name="157" href="#157">157</a>         <em class="jxr_comment">// optimization is the root of all...</em>
-<a class="jxr_linenumber" name="158" href="#158">158</a>         <em class="jxr_comment">//</em>
-<a class="jxr_linenumber" name="159" href="#159">159</a>         <em class="jxr_comment">// The 3 comes from:  version=1 + uidsize=1 + gidsize=1</em>
-<a class="jxr_linenumber" name="160" href="#160">160</a>         byte[] data = <strong class="jxr_keyword">new</strong> byte[3 + uidBytes.length + gidBytes.length];
-<a class="jxr_linenumber" name="161" href="#161">161</a> 
-<a class="jxr_linenumber" name="162" href="#162">162</a>         <em class="jxr_comment">// reverse() switches byte array from big-endian to little-endian.</em>
-<a class="jxr_linenumber" name="163" href="#163">163</a>         reverse(uidBytes);
-<a class="jxr_linenumber" name="164" href="#164">164</a>         reverse(gidBytes);
-<a class="jxr_linenumber" name="165" href="#165">165</a> 
-<a class="jxr_linenumber" name="166" href="#166">166</a>         <strong class="jxr_keyword">int</strong> pos = 0;
-<a class="jxr_linenumber" name="167" href="#167">167</a>         data[pos++] = unsignedIntToSignedByte(version);
-<a class="jxr_linenumber" name="168" href="#168">168</a>         data[pos++] = unsignedIntToSignedByte(uidBytes.length);
-<a class="jxr_linenumber" name="169" href="#169">169</a>         System.arraycopy(uidBytes, 0, data, pos, uidBytes.length);
-<a class="jxr_linenumber" name="170" href="#170">170</a>         pos += uidBytes.length;
-<a class="jxr_linenumber" name="171" href="#171">171</a>         data[pos++] = unsignedIntToSignedByte(gidBytes.length);
-<a class="jxr_linenumber" name="172" href="#172">172</a>         System.arraycopy(gidBytes, 0, data, pos, gidBytes.length);
-<a class="jxr_linenumber" name="173" href="#173">173</a>         <strong class="jxr_keyword">return</strong> data;
-<a class="jxr_linenumber" name="174" href="#174">174</a>     }
-<a class="jxr_linenumber" name="175" href="#175">175</a> 
-<a class="jxr_linenumber" name="176" href="#176">176</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="177" href="#177">177</a> <em class="jxr_javadoccomment">     * The actual data to put into central directory data - without Header-ID</em>
-<a class="jxr_linenumber" name="178" href="#178">178</a> <em class="jxr_javadoccomment">     * or length specifier.</em>
-<a class="jxr_linenumber" name="179" href="#179">179</a> <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="180" href="#180">180</a> <em class="jxr_javadoccomment">     * @return get the data</em>
-<a class="jxr_linenumber" name="181" href="#181">181</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="182" href="#182">182</a>     <strong class="jxr_keyword">public</strong> byte[] getCentralDirectoryData() {
-<a class="jxr_linenumber" name="183" href="#183">183</a>         <strong class="jxr_keyword">return</strong> getLocalFileDataData();
-<a class="jxr_linenumber" name="184" href="#184">184</a>     }
-<a class="jxr_linenumber" name="185" href="#185">185</a> 
-<a class="jxr_linenumber" name="186" href="#186">186</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="187" href="#187">187</a> <em class="jxr_javadoccomment">     * Populate data from this array as if it was in local file data.</em>
-<a class="jxr_linenumber" name="188" href="#188">188</a> <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="189" href="#189">189</a> <em class="jxr_javadoccomment">     * @param data   an array of bytes</em>
-<a class="jxr_linenumber" name="190" href="#190">190</a> <em class="jxr_javadoccomment">     * @param offset the start offset</em>
-<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_javadoccomment">     * @param length the number of bytes in the array from offset</em>
-<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_javadoccomment">     * @throws java.util.zip.ZipException on error</em>
-<a class="jxr_linenumber" name="193" href="#193">193</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="194" href="#194">194</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> parseFromLocalFileData(
-<a class="jxr_linenumber" name="195" href="#195">195</a>             byte[] data, <strong class="jxr_keyword">int</strong> offset, <strong class="jxr_keyword">int</strong> length
-<a class="jxr_linenumber" name="196" href="#196">196</a>     ) <strong class="jxr_keyword">throws</strong> ZipException {
-<a class="jxr_linenumber" name="197" href="#197">197</a>         reset();
-<a class="jxr_linenumber" name="198" href="#198">198</a>         <strong class="jxr_keyword">this</strong>.version = signedByteToUnsignedInt(data[offset++]);
-<a class="jxr_linenumber" name="199" href="#199">199</a>         <strong class="jxr_keyword">int</strong> uidSize = signedByteToUnsignedInt(data[offset++]);
-<a class="jxr_linenumber" name="200" href="#200">200</a>         byte[] uidBytes = <strong class="jxr_keyword">new</strong> byte[uidSize];
-<a class="jxr_linenumber" name="201" href="#201">201</a>         System.arraycopy(data, offset, uidBytes, 0, uidSize);
-<a class="jxr_linenumber" name="202" href="#202">202</a>         offset += uidSize;
-<a class="jxr_linenumber" name="203" href="#203">203</a>         <strong class="jxr_keyword">this</strong>.uid = <strong class="jxr_keyword">new</strong> BigInteger(1, reverse(uidBytes)); <em class="jxr_comment">// sign-bit forced positive</em>
-<a class="jxr_linenumber" name="204" href="#204">204</a> 
-<a class="jxr_linenumber" name="205" href="#205">205</a>         <strong class="jxr_keyword">int</strong> gidSize = signedByteToUnsignedInt(data[offset++]);
-<a class="jxr_linenumber" name="206" href="#206">206</a>         byte[] gidBytes = <strong class="jxr_keyword">new</strong> byte[gidSize];
-<a class="jxr_linenumber" name="207" href="#207">207</a>         System.arraycopy(data, offset, gidBytes, 0, gidSize);
-<a class="jxr_linenumber" name="208" href="#208">208</a>         <strong class="jxr_keyword">this</strong>.gid = <strong class="jxr_keyword">new</strong> BigInteger(1, reverse(gidBytes)); <em class="jxr_comment">// sign-bit forced positive</em>
-<a class="jxr_linenumber" name="209" href="#209">209</a>     }
-<a class="jxr_linenumber" name="210" href="#210">210</a> 
-<a class="jxr_linenumber" name="211" href="#211">211</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="212" href="#212">212</a> <em class="jxr_javadoccomment">     * Doesn't do anything special since this class always uses the</em>
-<a class="jxr_linenumber" name="213" href="#213">213</a> <em class="jxr_javadoccomment">     * same data in central directory and local file data.</em>
-<a class="jxr_linenumber" name="214" href="#214">214</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="215" href="#215">215</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> parseFromCentralDirectoryData(
-<a class="jxr_linenumber" name="216" href="#216">216</a>             byte[] buffer, <strong class="jxr_keyword">int</strong> offset, <strong class="jxr_keyword">int</strong> length
-<a class="jxr_linenumber" name="217" href="#217">217</a>     ) <strong class="jxr_keyword">throws</strong> ZipException {
-<a class="jxr_linenumber" name="218" href="#218">218</a>         reset();
-<a class="jxr_linenumber" name="219" href="#219">219</a>         parseFromLocalFileData(buffer, offset, length);
-<a class="jxr_linenumber" name="220" href="#220">220</a>     }
-<a class="jxr_linenumber" name="221" href="#221">221</a> 
-<a class="jxr_linenumber" name="222" href="#222">222</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="223" href="#223">223</a> <em class="jxr_javadoccomment">     * Reset state back to newly constructed state.  Helps us make sure</em>
-<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_javadoccomment">     * parse() calls always generate clean results.</em>
-<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="226" href="#226">226</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> reset() {
-<a class="jxr_linenumber" name="227" href="#227">227</a>         <em class="jxr_comment">// Typical UID/GID of the first non-root user created on a unix system.</em>
-<a class="jxr_linenumber" name="228" href="#228">228</a>         uid = ONE_THOUSAND;
-<a class="jxr_linenumber" name="229" href="#229">229</a>         gid = ONE_THOUSAND;
-<a class="jxr_linenumber" name="230" href="#230">230</a>     }
-<a class="jxr_linenumber" name="231" href="#231">231</a> 
-<a class="jxr_linenumber" name="232" href="#232">232</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="233" href="#233">233</a> <em class="jxr_javadoccomment">     * Returns a String representation of this class useful for</em>
-<a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_javadoccomment">     * debugging purposes.</em>
-<a class="jxr_linenumber" name="235" href="#235">235</a> <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="236" href="#236">236</a> <em class="jxr_javadoccomment">     * @return A String representation of this class useful for</em>
-<a class="jxr_linenumber" name="237" href="#237">237</a> <em class="jxr_javadoccomment">     *         debugging purposes.</em>
-<a class="jxr_linenumber" name="238" href="#238">238</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="239" href="#239">239</a>     @Override
-<a class="jxr_linenumber" name="240" href="#240">240</a>     <strong class="jxr_keyword">public</strong> String toString() {
-<a class="jxr_linenumber" name="241" href="#241">241</a>         <strong class="jxr_keyword">return</strong> <span class="jxr_string">"0x7875 Zip Extra Field: UID="</span> + uid + <span class="jxr_string">" GID="</span> + gid;
-<a class="jxr_linenumber" name="242" href="#242">242</a>     }
-<a class="jxr_linenumber" name="243" href="#243">243</a> 
-<a class="jxr_linenumber" name="244" href="#244">244</a>     @Override
-<a class="jxr_linenumber" name="245" href="#245">245</a>     <strong class="jxr_keyword">public</strong> Object clone() <strong class="jxr_keyword">throws</strong> CloneNotSupportedException {
-<a class="jxr_linenumber" name="246" href="#246">246</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">super</strong>.clone();
-<a class="jxr_linenumber" name="247" href="#247">247</a>     }
-<a class="jxr_linenumber" name="248" href="#248">248</a> 
-<a class="jxr_linenumber" name="249" href="#249">249</a>     @Override
-<a class="jxr_linenumber" name="250" href="#250">250</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> equals(Object o) {
-<a class="jxr_linenumber" name="251" href="#251">251</a>         <strong class="jxr_keyword">if</strong> (o instanceof X7875_NewUnix) {
-<a class="jxr_linenumber" name="252" href="#252">252</a>             <a href="../../../../../../org/apache/commons/compress/archivers/zip/X7875_NewUnix.html">X7875_NewUnix</a> xf = (X7875_NewUnix) o;
-<a class="jxr_linenumber" name="253" href="#253">253</a>             <em class="jxr_comment">// We assume uid and gid can never be null.</em>
-<a class="jxr_linenumber" name="254" href="#254">254</a>             <strong class="jxr_keyword">return</strong> version == xf.version &amp;&amp; uid.equals(xf.uid) &amp;&amp; gid.equals(xf.gid);
-<a class="jxr_linenumber" name="255" href="#255">255</a>         }
-<a class="jxr_linenumber" name="256" href="#256">256</a>         <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="257" href="#257">257</a>     }
-<a class="jxr_linenumber" name="258" href="#258">258</a> 
-<a class="jxr_linenumber" name="259" href="#259">259</a>     @Override
-<a class="jxr_linenumber" name="260" href="#260">260</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> hashCode() {
-<a class="jxr_linenumber" name="261" href="#261">261</a>         <strong class="jxr_keyword">int</strong> hc = (-1234567 * version);
-<a class="jxr_linenumber" name="262" href="#262">262</a>         <em class="jxr_comment">// Since most UID's and GID's are below 65,536, this is (hopefully!)</em>
-<a class="jxr_linenumber" name="263" href="#263">263</a>         <em class="jxr_comment">// a nice way to make sure typical UID and GID values impact the hash</em>
-<a class="jxr_linenumber" name="264" href="#264">264</a>         <em class="jxr_comment">// as much as possible.</em>
-<a class="jxr_linenumber" name="265" href="#265">265</a>         hc ^= Integer.rotateLeft(uid.hashCode(), 16);
-<a class="jxr_linenumber" name="266" href="#266">266</a>         hc ^= gid.hashCode();
-<a class="jxr_linenumber" name="267" href="#267">267</a>         <strong class="jxr_keyword">return</strong> hc;
-<a class="jxr_linenumber" name="268" href="#268">268</a>     }
-<a class="jxr_linenumber" name="269" href="#269">269</a> 
-<a class="jxr_linenumber" name="270" href="#270">270</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="271" href="#271">271</a> <em class="jxr_javadoccomment">     * Not really for external usage, but marked "package" visibility</em>
-<a class="jxr_linenumber" name="272" href="#272">272</a> <em class="jxr_javadoccomment">     * to help us JUnit it.   Trims a byte array of leading zeroes while</em>
-<a class="jxr_linenumber" name="273" href="#273">273</a> <em class="jxr_javadoccomment">     * also enforcing a minimum length, and thus it really trims AND pads</em>
-<a class="jxr_linenumber" name="274" href="#274">274</a> <em class="jxr_javadoccomment">     * at the same time.</em>
-<a class="jxr_linenumber" name="275" href="#275">275</a> <em class="jxr_javadoccomment">     *</em>
-<a class="jxr_linenumber" name="276" href="#276">276</a> <em class="jxr_javadoccomment">     * @param array byte[] array to trim &amp; pad.</em>
-<a class="jxr_linenumber" name="277" href="#277">277</a> <em class="jxr_javadoccomment">     * @return trimmed &amp; padded byte[] array.</em>
-<a class="jxr_linenumber" name="278" href="#278">278</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="279" href="#279">279</a>     <strong class="jxr_keyword">static</strong> byte[] trimLeadingZeroesForceMinLength(byte[] array) {
-<a class="jxr_linenumber" name="280" href="#280">280</a>         <strong class="jxr_keyword">if</strong> (array == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="281" href="#281">281</a>             <strong class="jxr_keyword">return</strong> array;
-<a class="jxr_linenumber" name="282" href="#282">282</a>         }
-<a class="jxr_linenumber" name="283" href="#283">283</a> 
-<a class="jxr_linenumber" name="284" href="#284">284</a>         <strong class="jxr_keyword">int</strong> pos = 0;
-<a class="jxr_linenumber" name="285" href="#285">285</a>         <strong class="jxr_keyword">for</strong> (byte b : array) {
-<a class="jxr_linenumber" name="286" href="#286">286</a>             <strong class="jxr_keyword">if</strong> (b == 0) {
-<a class="jxr_linenumber" name="287" href="#287">287</a>                 pos++;
-<a class="jxr_linenumber" name="288" href="#288">288</a>             } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="289" href="#289">289</a>                 <strong class="jxr_keyword">break</strong>;
-<a class="jxr_linenumber" name="290" href="#290">290</a>             }
-<a class="jxr_linenumber" name="291" href="#291">291</a>         }
-<a class="jxr_linenumber" name="292" href="#292">292</a> 
-<a class="jxr_linenumber" name="293" href="#293">293</a>         <em class="jxr_comment">/*</em>
-<a class="jxr_linenumber" name="294" href="#294">294</a> 
-<a class="jxr_linenumber" name="295" href="#295">295</a> <em class="jxr_comment">        I agonized over my choice of MIN_LENGTH=1.  Here's the situation:</em>
-<a class="jxr_linenumber" name="296" href="#296">296</a> <em class="jxr_comment">        InfoZip (the tool I am using to test interop) always sets these</em>
-<a class="jxr_linenumber" name="297" href="#297">297</a> <em class="jxr_comment">        to length=4.  And so a UID of 0 (typically root) for example is</em>
-<a class="jxr_linenumber" name="298" href="#298">298</a> <em class="jxr_comment">        encoded as {4,0,0,0,0} (len=4, 32 bits of zero), when it could just</em>
-<a class="jxr_linenumber" name="299" href="#299">299</a> <em class="jxr_comment">        as easily be encoded as {1,0} (len=1, 8 bits of zero) according to</em>
-<a class="jxr_linenumber" name="300" href="#300">300</a> <em class="jxr_comment">        the spec.</em>
-<a class="jxr_linenumber" name="301" href="#301">301</a> 
-<a class="jxr_linenumber" name="302" href="#302">302</a> <em class="jxr_comment">        In the end I decided on MIN_LENGTH=1 for four reasons:</em>
-<a class="jxr_linenumber" name="303" href="#303">303</a> 
-<a class="jxr_linenumber" name="304" href="#304">304</a> <em class="jxr_comment">        1.)  We are adhering to the spec as far as I can tell, and so</em>
-<a class="jxr_linenumber" name="305" href="#305">305</a> <em class="jxr_comment">             a consumer that cannot parse this is broken.</em>
-<a class="jxr_linenumber" name="306" href="#306">306</a> 
-<a class="jxr_linenumber" name="307" href="#307">307</a> <em class="jxr_comment">        2.)  Fundamentally, zip files are about shrinking things, so</em>
-<a class="jxr_linenumber" name="308" href="#308">308</a> <em class="jxr_comment">             let's save a few bytes per entry while we can.</em>
-<a class="jxr_linenumber" name="309" href="#309">309</a> 
-<a class="jxr_linenumber" name="310" href="#310">310</a> <em class="jxr_comment">        3.)  Of all the people creating zip files using commons-</em>
-<a class="jxr_linenumber" name="311" href="#311">311</a> <em class="jxr_comment">             compress, how many care about UNIX UID/GID attributes</em>
-<a class="jxr_linenumber" name="312" href="#312">312</a> <em class="jxr_comment">             of the files they store?   (e.g., I am probably thinking</em>
-<a class="jxr_linenumber" name="313" href="#313">313</a> <em class="jxr_comment">             way too hard about this and no one cares!)</em>
-<a class="jxr_linenumber" name="314" href="#314">314</a> 
-<a class="jxr_linenumber" name="315" href="#315">315</a> <em class="jxr_comment">        4.)  InfoZip's tool, even though it carefully stores every UID/GID</em>
-<a class="jxr_linenumber" name="316" href="#316">316</a> <em class="jxr_comment">             for every file zipped on a unix machine (by default) currently</em>
-<a class="jxr_linenumber" name="317" href="#317">317</a> <em class="jxr_comment">             appears unable to ever restore UID/GID.</em>
-<a class="jxr_linenumber" name="318" href="#318">318</a> <em class="jxr_comment">             unzip -X has no effect on my machine, even when run as root!!!!</em>
-<a class="jxr_linenumber" name="319" href="#319">319</a> 
-<a class="jxr_linenumber" name="320" href="#320">320</a> <em class="jxr_comment">        And thus it is decided:  MIN_LENGTH=1.</em>
-<a class="jxr_linenumber" name="321" href="#321">321</a> 
-<a class="jxr_linenumber" name="322" href="#322">322</a> <em class="jxr_comment">        If anyone runs into interop problems from this, feel free to set</em>
-<a class="jxr_linenumber" name="323" href="#323">323</a> <em class="jxr_comment">        it to MIN_LENGTH=4 at some future time, and then we will behave</em>
-<a class="jxr_linenumber" name="324" href="#324">324</a> <em class="jxr_comment">        exactly like InfoZip (requires changes to unit tests, though).</em>
-<a class="jxr_linenumber" name="325" href="#325">325</a> 
-<a class="jxr_linenumber" name="326" href="#326">326</a> <em class="jxr_comment">        And I am sorry that the time you spent reading this comment is now</em>
-<a class="jxr_linenumber" name="327" href="#327">327</a> <em class="jxr_comment">        gone and you can never have it back.</em>
-<a class="jxr_linenumber" name="328" href="#328">328</a> 
-<a class="jxr_linenumber" name="329" href="#329">329</a> <em class="jxr_comment">        */</em>
-<a class="jxr_linenumber" name="330" href="#330">330</a>         <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> MIN_LENGTH = 1;
-<a class="jxr_linenumber" name="331" href="#331">331</a> 
-<a class="jxr_linenumber" name="332" href="#332">332</a>         byte[] trimmedArray = <strong class="jxr_keyword">new</strong> byte[Math.max(MIN_LENGTH, array.length - pos)];
-<a class="jxr_linenumber" name="333" href="#333">333</a>         <strong class="jxr_keyword">int</strong> startPos = trimmedArray.length - (array.length - pos);
-<a class="jxr_linenumber" name="334" href="#334">334</a>         System.arraycopy(array, pos, trimmedArray, startPos, trimmedArray.length - startPos);
-<a class="jxr_linenumber" name="335" href="#335">335</a>         <strong class="jxr_keyword">return</strong> trimmedArray;
-<a class="jxr_linenumber" name="336" href="#336">336</a>     }
-<a class="jxr_linenumber" name="337" href="#337">337</a> }
+<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment"> * @since 1.5</em>
+<a class="jxr_linenumber" name="46" href="#46">46</a>  <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="47" href="#47">47</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/X7875_NewUnix.html">X7875_NewUnix</a> <strong class="jxr_keyword">implements</strong> ZipExtraField, Cloneable, Serializable {
+<a class="jxr_linenumber" name="48" href="#48">48</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a> HEADER_ID = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a>(0x7875);
+<a class="jxr_linenumber" name="49" href="#49">49</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> BigInteger ONE_THOUSAND = BigInteger.valueOf(1000);
+<a class="jxr_linenumber" name="50" href="#50">50</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> serialVersionUID = 1L;
+<a class="jxr_linenumber" name="51" href="#51">51</a>  
+<a class="jxr_linenumber" name="52" href="#52">52</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> version = 1; <em class="jxr_comment">// always '1' according to current info-zip spec.</em>
+<a class="jxr_linenumber" name="53" href="#53">53</a>  
+<a class="jxr_linenumber" name="54" href="#54">54</a>      <em class="jxr_comment">// BigInteger helps us with little-endian / big-endian conversions.</em>
+<a class="jxr_linenumber" name="55" href="#55">55</a>      <em class="jxr_comment">// (thanks to BigInteger.toByteArray() and a reverse() method we created).</em>
+<a class="jxr_linenumber" name="56" href="#56">56</a>      <em class="jxr_comment">// Also, the spec theoretically allows UID/GID up to 255 bytes long!</em>
+<a class="jxr_linenumber" name="57" href="#57">57</a>      <em class="jxr_comment">//</em>
+<a class="jxr_linenumber" name="58" href="#58">58</a>      <em class="jxr_comment">// NOTE:  equals() and hashCode() currently assume these can never be null.</em>
+<a class="jxr_linenumber" name="59" href="#59">59</a>      <strong class="jxr_keyword">private</strong> BigInteger uid;
+<a class="jxr_linenumber" name="60" href="#60">60</a>      <strong class="jxr_keyword">private</strong> BigInteger gid;
+<a class="jxr_linenumber" name="61" href="#61">61</a>  
+<a class="jxr_linenumber" name="62" href="#62">62</a>      <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="63" href="#63">63</a>  <em class="jxr_javadoccomment">     * Constructor for X7875_NewUnix.</em>
+<a class="jxr_linenumber" name="64" href="#64">64</a>  <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="65" href="#65">65</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/X7875_NewUnix.html">X7875_NewUnix</a>() {
+<a class="jxr_linenumber" name="66" href="#66">66</a>          reset();
+<a class="jxr_linenumber" name="67" href="#67">67</a>      }
+<a class="jxr_linenumber" name="68" href="#68">68</a>  
+<a class="jxr_linenumber" name="69" href="#69">69</a>      <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="70" href="#70">70</a>  <em class="jxr_javadoccomment">     * The Header-ID.</em>
+<a class="jxr_linenumber" name="71" href="#71">71</a>  <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="72" href="#72">72</a>  <em class="jxr_javadoccomment">     * @return the value for the header id for this extrafield</em>
+<a class="jxr_linenumber" name="73" href="#73">73</a>  <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="74" href="#74">74</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a> getHeaderId() {
+<a class="jxr_linenumber" name="75" href="#75">75</a>          <strong class="jxr_keyword">return</strong> HEADER_ID;
+<a class="jxr_linenumber" name="76" href="#76">76</a>      }
+<a class="jxr_linenumber" name="77" href="#77">77</a>  
+<a class="jxr_linenumber" name="78" href="#78">78</a>      <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="79" href="#79">79</a>  <em class="jxr_javadoccomment">     * Gets the UID as a long.  UID is typically a 32 bit unsigned</em>
+<a class="jxr_linenumber" name="80" href="#80">80</a>  <em class="jxr_javadoccomment">     * value on most UNIX systems, so we return a long to avoid</em>
+<a class="jxr_linenumber" name="81" href="#81">81</a>  <em class="jxr_javadoccomment">     * integer overflow into the negatives in case values above</em>
+<a class="jxr_linenumber" name="82" href="#82">82</a>  <em class="jxr_javadoccomment">     * and including 2^31 are being used.</em>
+<a class="jxr_linenumber" name="83" href="#83">83</a>  <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="84" href="#84">84</a>  <em class="jxr_javadoccomment">     * @return the UID value.</em>
+<a class="jxr_linenumber" name="85" href="#85">85</a>  <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="86" href="#86">86</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getUID() { <strong class="jxr_keyword">return</strong> ZipUtil.bigToLong(uid); }
+<a class="jxr_linenumber" name="87" href="#87">87</a>  
+<a class="jxr_linenumber" name="88" href="#88">88</a>      <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="89" href="#89">89</a>  <em class="jxr_javadoccomment">     * Gets the GID as a long.  GID is typically a 32 bit unsigned</em>
+<a class="jxr_linenumber" name="90" href="#90">90</a>  <em class="jxr_javadoccomment">     * value on most UNIX systems, so we return a long to avoid</em>
+<a class="jxr_linenumber" name="91" href="#91">91</a>  <em class="jxr_javadoccomment">     * integer overflow into the negatives in case values above</em>
+<a class="jxr_linenumber" name="92" href="#92">92</a>  <em class="jxr_javadoccomment">     * and including 2^31 are being used.</em>
+<a class="jxr_linenumber" name="93" href="#93">93</a>  <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="94" href="#94">94</a>  <em class="jxr_javadoccomment">     * @return the GID value.</em>
+<a class="jxr_linenumber" name="95" href="#95">95</a>  <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="96" href="#96">96</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getGID() { <strong class="jxr_keyword">return</strong> ZipUtil.bigToLong(gid); }
+<a class="jxr_linenumber" name="97" href="#97">97</a>  
+<a class="jxr_linenumber" name="98" href="#98">98</a>      <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="99" href="#99">99</a>  <em class="jxr_javadoccomment">     * Sets the UID.</em>
+<a class="jxr_linenumber" name="100" href="#100">100</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="101" href="#101">101</a> <em class="jxr_javadoccomment">     * @param l UID value to set on this extra field.</em>
+<a class="jxr_linenumber" name="102" href="#102">102</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="103" href="#103">103</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setUID(<strong class="jxr_keyword">long</strong> l) {
+<a class="jxr_linenumber" name="104" href="#104">104</a>         <strong class="jxr_keyword">this</strong>.uid = ZipUtil.longToBig(l);
+<a class="jxr_linenumber" name="105" href="#105">105</a>     }
+<a class="jxr_linenumber" name="106" href="#106">106</a> 
+<a class="jxr_linenumber" name="107" href="#107">107</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment">     * Sets the GID.</em>
+<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment">     * @param l GID value to set on this extra field.</em>
+<a class="jxr_linenumber" name="111" href="#111">111</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="112" href="#112">112</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setGID(<strong class="jxr_keyword">long</strong> l) {
+<a class="jxr_linenumber" name="113" href="#113">113</a>         <strong class="jxr_keyword">this</strong>.gid = ZipUtil.longToBig(l);
+<a class="jxr_linenumber" name="114" href="#114">114</a>     }
+<a class="jxr_linenumber" name="115" href="#115">115</a> 
+<a class="jxr_linenumber" name="116" href="#116">116</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment">     * Length of the extra field in the local file data - without</em>
+<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment">     * Header-ID or length specifier.</em>
+<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_javadoccomment">     * @return a &lt;code&gt;ZipShort&lt;/code&gt; for the length of the data of this extra field</em>
+<a class="jxr_linenumber" name="121" href="#121">121</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="122" href="#122">122</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a> getLocalFileDataLength() {
+<a class="jxr_linenumber" name="123" href="#123">123</a>         <strong class="jxr_keyword">int</strong> uidSize = trimLeadingZeroesForceMinLength(uid.toByteArray()).length;
+<a class="jxr_linenumber" name="124" href="#124">124</a>         <strong class="jxr_keyword">int</strong> gidSize = trimLeadingZeroesForceMinLength(gid.toByteArray()).length;
+<a class="jxr_linenumber" name="125" href="#125">125</a> 
+<a class="jxr_linenumber" name="126" href="#126">126</a>         <em class="jxr_comment">// The 3 comes from:  version=1 + uidsize=1 + gidsize=1</em>
+<a class="jxr_linenumber" name="127" href="#127">127</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a>(3 + uidSize + gidSize);
+<a class="jxr_linenumber" name="128" href="#128">128</a>     }
+<a class="jxr_linenumber" name="129" href="#129">129</a> 
+<a class="jxr_linenumber" name="130" href="#130">130</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="131" href="#131">131</a> <em class="jxr_javadoccomment">     * Length of the extra field in the central directory data - without</em>
+<a class="jxr_linenumber" name="132" href="#132">132</a> <em class="jxr_javadoccomment">     * Header-ID or length specifier.</em>
+<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="134" href="#134">134</a> <em class="jxr_javadoccomment">     * @return a &lt;code&gt;ZipShort&lt;/code&gt; for the length of the data of this extra field</em>
+<a class="jxr_linenumber" name="135" href="#135">135</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="136" href="#136">136</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/commons/compress/archivers/zip/ZipShort.html">ZipShort</a> getCentralDirectoryLength() {
+<a class="jxr_linenumber" name="137" href="#137">137</a>         <strong class="jxr_keyword">return</strong> getLocalFileDataLength();  <em class="jxr_comment">// No different than local version.</em>
+<a class="jxr_linenumber" name="138" href="#138">138</a>     }
+<a class="jxr_linenumber" name="139" href="#139">139</a> 
+<a class="jxr_linenumber" name="140" href="#140">140</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment">     * The actual data to put into local file data - without Header-ID</em>
+<a class="jxr_linenumber" name="142" href="#142">142</a> <em class="jxr_javadoccomment">     * or length specifier.</em>
+<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="144" href="#144">144</a> <em class="jxr_javadoccomment">     * @return get the data</em>
+<a class="jxr_linenumber" name="145" href="#145">145</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="146" href="#146">146</a>     <strong class="jxr_keyword">public</strong> byte[] getLocalFileDataData() {
+<a class="jxr_linenumber" name="147" href="#147">147</a>         byte[] uidBytes = uid.toByteArray();
+<a class="jxr_linenumber" name="148" href="#148">148</a>         byte[] gidBytes = gid.toByteArray();
+<a class="jxr_linenumber" name="149" href="#149">149</a> 
+<a class="jxr_linenumber" name="150" href="#150">150</a>         <em class="jxr_comment">// BigInteger might prepend a leading-zero to force a positive representation</em>
+<a class="jxr_linenumber" name="151" href="#151">151</a>         <em class="jxr_comment">// (e.g., so that the sign-bit is set to zero).  We need to remove that</em>
+<a class="jxr_linenumber" name="152" href="#152">152</a>         <em class="jxr_comment">// before sending the number over the wire.</em>
+<a class="jxr_linenumber" name="153" href="#153">153</a>         uidBytes = trimLeadingZeroesForceMinLength(uidBytes);
+<a class="jxr_linenumber" name="154" href="#154">154</a>         gidBytes = trimLeadingZeroesForceMinLength(gidBytes);
+<a class="jxr_linenumber" name="155" href="#155">155</a> 
+<a class="jxr_linenumber" name="156" href="#156">156</a>         <em class="jxr_comment">// Couldn't bring myself to just call getLocalFileDataLength() when we've</em>
+<a class="jxr_linenumber" name="157" href="#157">157</a>         <em class="jxr_comment">// already got the arrays right here.  Yeah, yeah, I know, premature</em>
+<a class="jxr_linenumber" name="158" href="#158">158</a>         <em class="jxr_comment">// optimization is the root of all...</em>
+<a class="jxr_linenumber" name="159" href="#159">159</a>         <em class="jxr_comment">//</em>
+<a class="jxr_linenumber" name="160" href="#160">160</a>         <em class="jxr_comment">// The 3 comes from:  version=1 + uidsize=1 + gidsize=1</em>
+<a class="jxr_linenumber" name="161" href="#161">161</a>         byte[] data = <strong class="jxr_keyword">new</strong> byte[3 + uidBytes.length + gidBytes.length];
+<a class="jxr_linenumber" name="162" href="#162">162</a> 
+<a class="jxr_linenumber" name="163" href="#163">163</a>         <em class="jxr_comment">// reverse() switches byte array from big-endian to little-endian.</em>
+<a class="jxr_linenumber" name="164" href="#164">164</a>         reverse(uidBytes);
+<a class="jxr_linenumber" name="165" href="#165">165</a>         reverse(gidBytes);
+<a class="jxr_linenumber" name="166" href="#166">166</a> 
+<a class="jxr_linenumber" name="167" href="#167">167</a>         <strong class="jxr_keyword">int</strong> pos = 0;
+<a class="jxr_linenumber" name="168" href="#168">168</a>         data[pos++] = unsignedIntToSignedByte(version);
+<a class="jxr_linenumber" name="169" href="#169">169</a>         data[pos++] = unsignedIntToSignedByte(uidBytes.length);
+<a class="jxr_linenumber" name="170" href="#170">170</a>         System.arraycopy(uidBytes, 0, data, pos, uidBytes.length);
+<a class="jxr_linenumber" name="171" href="#171">171</a>         pos += uidBytes.length;
+<a class="jxr_linenumber" name="172" href="#172">172</a>         data[pos++] = unsignedIntToSignedByte(gidBytes.length);
+<a class="jxr_linenumber" name="173" href="#173">173</a>         System.arraycopy(gidBytes, 0, data, pos, gidBytes.length);
+<a class="jxr_linenumber" name="174" href="#174">174</a>         <strong class="jxr_keyword">return</strong> data;
+<a class="jxr_linenumber" name="175" href="#175">175</a>     }
+<a class="jxr_linenumber" name="176" href="#176">176</a> 
+<a class="jxr_linenumber" name="177" href="#177">177</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="178" href="#178">178</a> <em class="jxr_javadoccomment">     * The actual data to put into central directory data - without Header-ID</em>
+<a class="jxr_linenumber" name="179" href="#179">179</a> <em class="jxr_javadoccomment">     * or length specifier.</em>
+<a class="jxr_linenumber" name="180" href="#180">180</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="181" href="#181">181</a> <em class="jxr_javadoccomment">     * @return get the data</em>
+<a class="jxr_linenumber" name="182" href="#182">182</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="183" href="#183">183</a>     <strong class="jxr_keyword">public</strong> byte[] getCentralDirectoryData() {
+<a class="jxr_linenumber" name="184" href="#184">184</a>         <strong class="jxr_keyword">return</strong> getLocalFileDataData();
+<a class="jxr_linenumber" name="185" href="#185">185</a>     }
+<a class="jxr_linenumber" name="186" href="#186">186</a> 
+<a class="jxr_linenumber" name="187" href="#187">187</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="188" href="#188">188</a> <em class="jxr_javadoccomment">     * Populate data from this array as if it was in local file data.</em>
+<a class="jxr_linenumber" name="189" href="#189">189</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="190" href="#190">190</a> <em class="jxr_javadoccomment">     * @param data   an array of bytes</em>
+<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_javadoccomment">     * @param offset the start offset</em>
+<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_javadoccomment">     * @param length the number of bytes in the array from offset</em>
+<a class="jxr_linenumber" name="193" href="#193">193</a> <em class="jxr_javadoccomment">     * @throws java.util.zip.ZipException on error</em>
+<a class="jxr_linenumber" name="194" href="#194">194</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="195" href="#195">195</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> parseFromLocalFileData(
+<a class="jxr_linenumber" name="196" href="#196">196</a>             byte[] data, <strong class="jxr_keyword">int</strong> offset, <strong class="jxr_keyword">int</strong> length
+<a class="jxr_linenumber" name="197" href="#197">197</a>     ) <strong class="jxr_keyword">throws</strong> ZipException {
+<a class="jxr_linenumber" name="198" href="#198">198</a>         reset();
+<a class="jxr_linenumber" name="199" href="#199">199</a>         <strong class="jxr_keyword">this</strong>.version = signedByteToUnsignedInt(data[offset++]);
+<a class="jxr_linenumber" name="200" href="#200">200</a>         <strong class="jxr_keyword">int</strong> uidSize = signedByteToUnsignedInt(data[offset++]);
+<a class="jxr_linenumber" name="201" href="#201">201</a>         byte[] uidBytes = <strong class="jxr_keyword">new</strong> byte[uidSize];
+<a class="jxr_linenumber" name="202" href="#202">202</a>         System.arraycopy(data, offset, uidBytes, 0, uidSize);
+<a class="jxr_linenumber" name="203" href="#203">203</a>         offset += uidSize;
+<a class="jxr_linenumber" name="204" href="#204">204</a>         <strong class="jxr_keyword">this</strong>.uid = <strong class="jxr_keyword">new</strong> BigInteger(1, reverse(uidBytes)); <em class="jxr_comment">// sign-bit forced positive</em>
+<a class="jxr_linenumber" name="205" href="#205">205</a> 
+<a class="jxr_linenumber" name="206" href="#206">206</a>         <strong class="jxr_keyword">int</strong> gidSize = signedByteToUnsignedInt(data[offset++]);
+<a class="jxr_linenumber" name="207" href="#207">207</a>         byte[] gidBytes = <strong class="jxr_keyword">new</strong> byte[gidSize];
+<a class="jxr_linenumber" name="208" href="#208">208</a>         System.arraycopy(data, offset, gidBytes, 0, gidSize);
+<a class="jxr_linenumber" name="209" href="#209">209</a>         <strong class="jxr_keyword">this</strong>.gid = <strong class="jxr_keyword">new</strong> BigInteger(1, reverse(gidBytes)); <em class="jxr_comment">// sign-bit forced positive</em>
+<a class="jxr_linenumber" name="210" href="#210">210</a>     }
+<a class="jxr_linenumber" name="211" href="#211">211</a> 
+<a class="jxr_linenumber" name="212" href="#212">212</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="213" href="#213">213</a> <em class="jxr_javadoccomment">     * Doesn't do anything special since this class always uses the</em>
+<a class="jxr_linenumber" name="214" href="#214">214</a> <em class="jxr_javadoccomment">     * same data in central directory and local file data.</em>
+<a class="jxr_linenumber" name="215" href="#215">215</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="216" href="#216">216</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> parseFromCentralDirectoryData(
+<a class="jxr_linenumber" name="217" href="#217">217</a>             byte[] buffer, <strong class="jxr_keyword">int</strong> offset, <strong class="jxr_keyword">int</strong> length
+<a class="jxr_linenumber" name="218" href="#218">218</a>     ) <strong class="jxr_keyword">throws</strong> ZipException {
+<a class="jxr_linenumber" name="219" href="#219">219</a>         reset();
+<a class="jxr_linenumber" name="220" href="#220">220</a>         parseFromLocalFileData(buffer, offset, length);
+<a class="jxr_linenumber" name="221" href="#221">221</a>     }
+<a class="jxr_linenumber" name="222" href="#222">222</a> 
+<a class="jxr_linenumber" name="223" href="#223">223</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_javadoccomment">     * Reset state back to newly constructed state.  Helps us make sure</em>
+<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_javadoccomment">     * parse() calls always generate clean results.</em>
+<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="227" href="#227">227</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> reset() {
+<a class="jxr_linenumber" name="228" href="#228">228</a>         <em class="jxr_comment">// Typical UID/GID of the first non-root user created on a unix system.</em>
+<a class="jxr_linenumber" name="229" href="#229">229</a>         uid = ONE_THOUSAND;
+<a class="jxr_linenumber" name="230" href="#230">230</a>         gid = ONE_THOUSAND;
+<a class="jxr_linenumber" name="231" href="#231">231</a>     }
+<a class="jxr_linenumber" name="232" href="#232">232</a> 
+<a class="jxr_linenumber" name="233" href="#233">233</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_javadoccomment">     * Returns a String representation of this class useful for</em>
+<a class="jxr_linenumber" name="235" href="#235">235</a> <em class="jxr_javadoccomment">     * debugging purposes.</em>
+<a class="jxr_linenumber" name="236" href="#236">236</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="237" href="#237">237</a> <em class="jxr_javadoccomment">     * @return A String representation of this class useful for</em>
+<a class="jxr_linenumber" name="238" href="#238">238</a> <em class="jxr_javadoccomment">     *         debugging purposes.</em>
+<a class="jxr_linenumber" name="239" href="#239">239</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="240" href="#240">240</a>     @Override
+<a class="jxr_linenumber" name="241" href="#241">241</a>     <strong class="jxr_keyword">public</strong> String toString() {
+<a class="jxr_linenumber" name="242" href="#242">242</a>         <strong class="jxr_keyword">return</strong> <span class="jxr_string">"0x7875 Zip Extra Field: UID="</span> + uid + <span class="jxr_string">" GID="</span> + gid;
+<a class="jxr_linenumber" name="243" href="#243">243</a>     }
+<a class="jxr_linenumber" name="244" href="#244">244</a> 
+<a class="jxr_linenumber" name="245" href="#245">245</a>     @Override
+<a class="jxr_linenumber" name="246" href="#246">246</a>     <strong class="jxr_keyword">public</strong> Object clone() <strong class="jxr_keyword">throws</strong> CloneNotSupportedException {
+<a class="jxr_linenumber" name="247" href="#247">247</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">super</strong>.clone();
+<a class="jxr_linenumber" name="248" href="#248">248</a>     }
+<a class="jxr_linenumber" name="249" href="#249">249</a> 
+<a class="jxr_linenumber" name="250" href="#250">250</a>     @Override
+<a class="jxr_linenumber" name="251" href="#251">251</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> equals(Object o) {
+<a class="jxr_linenumber" name="252" href="#252">252</a>         <strong class="jxr_keyword">if</strong> (o instanceof X7875_NewUnix) {
+<a class="jxr_linenumber" name="253" href="#253">253</a>             <a href="../../../../../../org/apache/commons/compress/archivers/zip/X7875_NewUnix.html">X7875_NewUnix</a> xf = (X7875_NewUnix) o;
+<a class="jxr_linenumber" name="254" href="#254">254</a>             <em class="jxr_comment">// We assume uid and gid can never be null.</em>
+<a class="jxr_linenumber" name="255" href="#255">255</a>             <strong class="jxr_keyword">return</strong> version == xf.version &amp;&amp; uid.equals(xf.uid) &amp;&amp; gid.equals(xf.gid);
+<a class="jxr_linenumber" name="256" href="#256">256</a>         }
+<a class="jxr_linenumber" name="257" href="#257">257</a>         <strong class="jxr_keyword">return</strong> false;
+<a class="jxr_linenumber" name="258" href="#258">258</a>     }
+<a class="jxr_linenumber" name="259" href="#259">259</a> 
+<a class="jxr_linenumber" name="260" href="#260">260</a>     @Override
+<a class="jxr_linenumber" name="261" href="#261">261</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> hashCode() {
+<a class="jxr_linenumber" name="262" href="#262">262</a>         <strong class="jxr_keyword">int</strong> hc = (-1234567 * version);
+<a class="jxr_linenumber" name="263" href="#263">263</a>         <em class="jxr_comment">// Since most UID's and GID's are below 65,536, this is (hopefully!)</em>
+<a class="jxr_linenumber" name="264" href="#264">264</a>         <em class="jxr_comment">// a nice way to make sure typical UID and GID values impact the hash</em>
+<a class="jxr_linenumber" name="265" href="#265">265</a>         <em class="jxr_comment">// as much as possible.</em>
+<a class="jxr_linenumber" name="266" href="#266">266</a>         hc ^= Integer.rotateLeft(uid.hashCode(), 16);
+<a class="jxr_linenumber" name="267" href="#267">267</a>         hc ^= gid.hashCode();
+<a class="jxr_linenumber" name="268" href="#268">268</a>         <strong class="jxr_keyword">return</strong> hc;
+<a class="jxr_linenumber" name="269" href="#269">269</a>     }
+<a class="jxr_linenumber" name="270" href="#270">270</a> 
+<a class="jxr_linenumber" name="271" href="#271">271</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="272" href="#272">272</a> <em class="jxr_javadoccomment">     * Not really for external usage, but marked "package" visibility</em>
+<a class="jxr_linenumber" name="273" href="#273">273</a> <em class="jxr_javadoccomment">     * to help us JUnit it.   Trims a byte array of leading zeroes while</em>
+<a class="jxr_linenumber" name="274" href="#274">274</a> <em class="jxr_javadoccomment">     * also enforcing a minimum length, and thus it really trims AND pads</em>
+<a class="jxr_linenumber" name="275" href="#275">275</a> <em class="jxr_javadoccomment">     * at the same time.</em>
+<a class="jxr_linenumber" name="276" href="#276">276</a> <em class="jxr_javadoccomment">     *</em>
+<a class="jxr_linenumber" name="277" href="#277">277</a> <em class="jxr_javadoccomment">     * @param array byte[] array to trim &amp; pad.</em>
+<a class="jxr_linenumber" name="278" href="#278">278</a> <em class="jxr_javadoccomment">     * @return trimmed &amp; padded byte[] array.</em>
+<a class="jxr_linenumber" name="279" href="#279">279</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="280" href="#280">280</a>     <strong class="jxr_keyword">static</strong> byte[] trimLeadingZeroesForceMinLength(byte[] array) {
+<a class="jxr_linenumber" name="281" href="#281">281</a>         <strong class="jxr_keyword">if</strong> (array == <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="282" href="#282">282</a>             <strong class="jxr_keyword">return</strong> array;
+<a class="jxr_linenumber" name="283" href="#283">283</a>         }
+<a class="jxr_linenumber" name="284" href="#284">284</a> 
+<a class="jxr_linenumber" name="285" href="#285">285</a>         <strong class="jxr_keyword">int</strong> pos = 0;
+<a class="jxr_linenumber" name="286" href="#286">286</a>         <strong class="jxr_keyword">for</strong> (byte b : array) {
+<a class="jxr_linenumber" name="287" href="#287">287</a>             <strong class="jxr_keyword">if</strong> (b == 0) {
+<a class="jxr_linenumber" name="288" href="#288">288</a>                 pos++;
+<a class="jxr_linenumber" name="289" href="#289">289</a>             } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="290" href="#290">290</a>                 <strong class="jxr_keyword">break</strong>;
+<a class="jxr_linenumber" name="291" href="#291">291</a>             }
+<a class="jxr_linenumber" name="292" href="#292">292</a>         }
+<a class="jxr_linenumber" name="293" href="#293">293</a> 
+<a class="jxr_linenumber" name="294" href="#294">294</a>         <em class="jxr_comment">/*</em>
+<a class="jxr_linenumber" name="295" href="#295">295</a> 
+<a class="jxr_linenumber" name="296" href="#296">296</a> <em class="jxr_comment">        I agonized over my choice of MIN_LENGTH=1.  Here's the situation:</em>
+<a class="jxr_linenumber" name="297" href="#297">297</a> <em class="jxr_comment">        InfoZip (the tool I am using to test interop) always sets these</em>
+<a class="jxr_linenumber" name="298" href="#298">298</a> <em class="jxr_comment">        to length=4.  And so a UID of 0 (typically root) for example is</em>
+<a class="jxr_linenumber" name="299" href="#299">299</a> <em class="jxr_comment">        encoded as {4,0,0,0,0} (len=4, 32 bits of zero), when it could just</em>
+<a class="jxr_linenumber" name="300" href="#300">300</a> <em class="jxr_comment">        as easily be encoded as {1,0} (len=1, 8 bits of zero) according to</em>
+<a class="jxr_linenumber" name="301" href="#301">301</a> <em class="jxr_comment">        the spec.</em>
+<a class="jxr_linenumber" name="302" href="#302">302</a> 
+<a class="jxr_linenumber" name="303" href="#303">303</a> <em class="jxr_comment">        In the end I decided on MIN_LENGTH=1 for four reasons:</em>
+<a class="jxr_linenumber" name="304" href="#304">304</a> 
+<a class="jxr_linenumber" name="305" href="#305">305</a> <em class="jxr_comment">        1.)  We are adhering to the spec as far as I can tell, and so</em>
+<a class="jxr_linenumber" name="306" href="#306">306</a> <em class="jxr_comment">             a consumer that cannot parse this is broken.</em>
+<a class="jxr_linenumber" name="307" href="#307">307</a> 
+<a class="jxr_linenumber" name="308" href="#308">308</a> <em class="jxr_comment">        2.)  Fundamentally, zip files are about shrinking things, so</em>
+<a class="jxr_linenumber" name="309" href="#309">309</a> <em class="jxr_comment">             let's save a few bytes per entry while we can.</em>
+<a class="jxr_linenumber" name="310" href="#310">310</a> 
+<a class="jxr_linenumber" name="311" href="#311">311</a> <em class="jxr_comment">        3.)  Of all the people creating zip files using commons-</em>
+<a class="jxr_linenumber" name="312" href="#312">312</a> <em class="jxr_comment">             compress, how many care about UNIX UID/GID attributes</em>
+<a class="jxr_linenumber" name="313" href="#313">313</a> <em class="jxr_comment">             of the files they store?   (e.g., I am probably thinking</em>
+<a class="jxr_linenumber" name="314" href="#314">314</a> <em class="jxr_comment">             way too hard about this and no one cares!)</em>
+<a class="jxr_linenumber" name="315" href="#315">315</a> 
+<a class="jxr_linenumber" name="316" href="#316">316</a> <em class="jxr_comment">        4.)  InfoZip's tool, even though it carefully stores every UID/GID</em>
+<a class="jxr_linenumber" name="317" href="#317">317</a> <em class="jxr_comment">             for every file zipped on a unix machine (by default) currently</em>
+<a class="jxr_linenumber" name="318" href="#318">318</a> <em class="jxr_comment">             appears unable to ever restore UID/GID.</em>
+<a class="jxr_linenumber" name="319" href="#319">319</a> <em class="jxr_comment">             unzip -X has no effect on my machine, even when run as root!!!!</em>
+<a class="jxr_linenumber" name="320" href="#320">320</a> 
+<a class="jxr_linenumber" name="321" href="#321">321</a> <em class="jxr_comment">        And thus it is decided:  MIN_LENGTH=1.</em>
+<a class="jxr_linenumber" name="322" href="#322">322</a> 
+<a class="jxr_linenumber" name="323" href="#323">323</a> <em class="jxr_comment">        If anyone runs into interop problems from this, feel free to set</em>
+<a class="jxr_linenumber" name="324" href="#324">324</a> <em class="jxr_comment">        it to MIN_LENGTH=4 at some future time, and then we will behave</em>
+<a class="jxr_linenumber" name="325" href="#325">325</a> <em class="jxr_comment">        exactly like InfoZip (requires changes to unit tests, though).</em>
+<a class="jxr_linenumber" name="326" href="#326">326</a> 
+<a class="jxr_linenumber" name="327" href="#327">327</a> <em class="jxr_comment">        And I am sorry that the time you spent reading this comment is now</em>
+<a class="jxr_linenumber" name="328" href="#328">328</a> <em class="jxr_comment">        gone and you can never have it back.</em>
+<a class="jxr_linenumber" name="329" href="#329">329</a> 
+<a class="jxr_linenumber" name="330" href="#330">330</a> <em class="jxr_comment">        */</em>
+<a class="jxr_linenumber" name="331" href="#331">331</a>         <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> MIN_LENGTH = 1;
+<a class="jxr_linenumber" name="332" href="#332">332</a> 
+<a class="jxr_linenumber" name="333" href="#333">333</a>         byte[] trimmedArray = <strong class="jxr_keyword">new</strong> byte[Math.max(MIN_LENGTH, array.length - pos)];
+<a class="jxr_linenumber" name="334" href="#334">334</a>         <strong class="jxr_keyword">int</strong> startPos = trimmedArray.length - (array.length - pos);
+<a class="jxr_linenumber" name="335" href="#335">335</a>         System.arraycopy(array, pos, trimmedArray, startPos, trimmedArray.length - startPos);
+<a class="jxr_linenumber" name="336" href="#336">336</a>         <strong class="jxr_keyword">return</strong> trimmedArray;
+<a class="jxr_linenumber" name="337" href="#337">337</a>     }
+<a class="jxr_linenumber" name="338" href="#338">338</a> }
 </pre>
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