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     10   <title>JaCoCo - Build</title>
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     13 
     14 <div class="breadcrumb">
     15   <a href="../index.html" class="el_report">JaCoCo</a> &gt;
     16   <a href="index.html" class="el_group">Documentation</a> &gt;
     17   <span class="el_source">Build</span>
     18 </div>
     19 <div id="content"> 
     20 
     21 <h1>Build</h1>
     22 
     23 <p>
     24   The JaCoCo build is based on <a href="http://maven.apache.org/">Maven</a> and
     25   can be locally executed on every machine with a proper
     26   <a href="environment.html">environment setup</a>. In particular you need a
     27   <a href="http://maven.apache.org/">Maven 3</a> installation.  Developers are
     28   encouraged to run the build before every commit to ensure consistency of the
     29   source tree.
     30 </p>
     31 
     32 
     33 <h2>Running the Build</h2>
     34 
     35 <p>
     36   The build can be started by executing the following command with
     37   <code>./org.jacoco.build/</code> as the working directory:
     38 </p>
     39 
     40 <pre>
     41   mvn clean install
     42 </pre>
     43 
     44 <p>
     45   Total build time is typically around 3 minutes, however first build might take
     46   more time, because Maven should download plugins and dependencies. The
     47   download ZIP will be created at the following location:
     48 </p>
     49 
     50 <pre>
     51   ./jacoco/target/jacoco-<i>x.y.z.qualifier</i>.zip
     52 </pre>
     53 
     54 
     55 <h2>Running Quick Build without Tests</h2>
     56 
     57 <p>
     58   It is not recommended, however possible to the run build without any tests:
     59 </p>
     60 
     61 <pre>
     62   mvn clean install -DskipTests
     63 </pre>
     64 
     65 
     66 <h2>Testing with different JDKs</h2>
     67 
     68 <p>
     69   Target Java version for JaCoCo builds is 1.5, however for verification
     70   purposes you can execute tests using other versions. In order to do so, first
     71   you should create file <code>toolchains.xml</code> in <code>~/.m2/</code>
     72   directory. Here is an example of such file. For more information see
     73   <a href="http://maven.apache.org/guides/mini/guide-using-toolchains.html">Maven
     74   Guide to Using Toolchains</a>. 
     75 </p>
     76 
     77 <pre class="source lang-xml linenums">
     78 &lt;?xml version="1.0" encoding="UTF8"?&gt;
     79 &lt;toolchains&gt;
     80   &lt;toolchain&gt;
     81     &lt;type&gt;jdk&lt;/type&gt;
     82     &lt;provides&gt;
     83       &lt;id&gt;java15&lt;/id&gt;
     84       &lt;version&gt;1.5&lt;/version&gt;
     85       &lt;vendor&gt;sun&lt;/vendor&gt;
     86     &lt;/provides&gt;
     87     &lt;configuration&gt;
     88       &lt;jdkHome&gt;/usr/lib/jvm/sun-jdk-1.5&lt;/jdkHome&gt;
     89     &lt;/configuration&gt;
     90   &lt;/toolchain&gt;
     91   &lt;toolchain&gt;
     92     &lt;type&gt;jdk&lt;/type&gt;
     93     &lt;provides&gt;
     94       &lt;id&gt;java16&lt;/id&gt;
     95       &lt;version&gt;1.6&lt;/version&gt;
     96       &lt;vendor&gt;sun&lt;/vendor&gt;
     97     &lt;/provides&gt;
     98     &lt;configuration&gt;
     99       &lt;jdkHome&gt;/usr/lib/jvm/sun-jdk-1.6&lt;/jdkHome&gt;
    100     &lt;/configuration&gt;
    101   &lt;/toolchain&gt;
    102   &lt;toolchain&gt;
    103     &lt;type&gt;jdk&lt;/type&gt;
    104     &lt;provides&gt;
    105       &lt;id&gt;java17&lt;/id&gt;
    106       &lt;version&gt;1.7&lt;/version&gt;
    107       &lt;vendor&gt;sun&lt;/vendor&gt;
    108     &lt;/provides&gt;
    109     &lt;configuration&gt;
    110       &lt;jdkHome&gt;/usr/lib/jvm/sun-jdk-1.7&lt;/jdkHome&gt;
    111     &lt;/configuration&gt;
    112   &lt;/toolchain&gt;
    113   &lt;toolchain&gt;
    114     &lt;type&gt;jdk&lt;/type&gt;
    115     &lt;provides&gt;
    116       &lt;id&gt;java18&lt;/id&gt;
    117       &lt;version&gt;1.8&lt;/version&gt;
    118       &lt;vendor&gt;sun&lt;/vendor&gt;
    119     &lt;/provides&gt;
    120     &lt;configuration&gt;
    121       &lt;jdkHome&gt;/usr/lib/jvm/sun-jdk-1.8&lt;/jdkHome&gt;
    122     &lt;/configuration&gt;
    123   &lt;/toolchain&gt;
    124   &lt;toolchain&gt;
    125     &lt;type&gt;jdk&lt;/type&gt;
    126     &lt;provides&gt;
    127       &lt;id&gt;java19&lt;/id&gt;
    128       &lt;version&gt;1.9&lt;/version&gt;
    129       &lt;vendor&gt;sun&lt;/vendor&gt;
    130     &lt;/provides&gt;
    131     &lt;configuration&gt;
    132       &lt;jdkHome&gt;/usr/lib/jvm/sun-jdk-1.9&lt;/jdkHome&gt;
    133     &lt;/configuration&gt;
    134   &lt;/toolchain&gt;
    135 &lt;/toolchains&gt;
    136 </pre>
    137 
    138 <p>
    139   Now you should be able to execute maven build with specified version of JDK:
    140 </p>
    141 
    142 <pre>
    143   mvn clean install -Djdk.version=<i>version</i>
    144 </pre>
    145 
    146 <p>
    147   Location of <code>toolchains.xml</code> can be set via an option:
    148 </p>
    149 
    150 <pre>
    151   mvn --toolchains <i>path</i> clean install -Djdk.version=<i>version</i>
    152 </pre>
    153 
    154 <p>
    155   Also Eclipse Compiler for Java can be used for compilation:
    156 </p>
    157 
    158 <pre>
    159   mvn clean install -Decj
    160 </pre>
    161 
    162 <p>
    163   In addition JaCoCo can be compiled for higher class file versions than 1.5
    164   specifying the property <code>bytecode.version</code>. Note that in this case
    165   the version of the JVM running Maven must be at least the version of the
    166   specified bytecode version as this JVM is also running the tests. Combining
    167   these options JaCoCo is regularly tested with the following setups:
    168 </p>
    169 
    170 <ul>
    171   <li>Maven with 1.5 JDK: <code>mvn clean install -Djdk.version=1.5 -Dbytecode.version=1.5</code></li>
    172   <li>Maven with 1.6 JDK: <code>mvn clean install -Djdk.version=1.6 -Dbytecode.version=1.6</code></li>
    173   <li>Maven with 1.7 JDK: <code>mvn clean install -Djdk.version=1.7 -Dbytecode.version=1.7</code></li>
    174   <li>Maven with 1.8 JDK: <code>mvn clean install -Djdk.version=1.8 -Dbytecode.version=1.8</code></li>
    175   <li>Maven with 1.8 JDK: <code>mvn clean install -Djdk.version=1.8 -Dbytecode.version=1.8 -Decj</code></li>
    176   <li>Maven with 1.9 JDK: <code>mvn clean install -Djdk.version=1.9 -Dbytecode.version=1.9</code></li>
    177 </ul>
    178 
    179 
    180 </div>
    181 <div class="footer">
    182   <span class="right"><a href="@jacoco.home.url@">JaCoCo</a> @qualified.bundle.version@</span>
    183   <a href="license.html">Copyright</a> &copy; @copyright.years@ Mountainminds GmbH &amp; Co. KG and Contributors
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