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<h1 id="compile-a-jvm-target">Compile a JVM Target</h1>
<h2 id="problem">Problem</h2>
<p>You need to compile a JVM binary or library target that you're working on, e.g. to ensure that the target compiles successfully.</p>
<h2 id="solution">Solution</h2>
<p>The <code>compile</code> goal enables you to compile Scala or Java <a href="">binaries</a> and libraries. Here's an example:</p>
<div class="codehilite"><pre><span></span>$ ./pants compile src/scala/com/myorg/myproject/hello/exe:exe
</pre></div>
<p>The <code>compile</code> goal requires you to target a <code>BUILD</code> file containing either a <code>java_library</code>, <code>scala_library</code>, <code>java_binary</code> or <code>scala_binary</code> target. For the CLI example above, the target <code>BUILD</code> file might look something like this:</p>
<div class="codehilite"><pre><span></span><span class="n">jvm_binary</span><span class="p">(</span>
  <span class="n">dependencies</span><span class="o">=</span><span class="p">[</span>
    <span class="s1">'src/scala/com/myorg/myproject/example/hello/welcome:welcome'</span><span class="p">,</span>
  <span class="p">],</span>
  <span class="n">source</span><span class="o">=</span><span class="s1">'Exe.scala'</span><span class="p">,</span>
  <span class="n">main</span><span class="o">=</span><span class="s1">'org.pantsbuild.example.hello.exe.Exe'</span><span class="p">,</span>
<span class="p">)</span>
</pre></div>
<h2 id="discussion">Discussion</h2>
<p>This works somewhat differently if you're working on Python projects. Because Python doesn't require compilation, <code>python_library</code> targets do not need a separate compilation phase. You can, however, compile Python CLI apps into PEX files, using a <code>python_binary</code> target. See <a href="pex.html">Build a Python Executable</a> and <a href="run.html">Run a Binary Target</a> for more info.</p>

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