title: mvn clean install converting contents of properties file into different format
body: <p>I have an issue while compiling the project using <code>mnv clean install</code>, its simply converting the contents of properties file into different format. </p>
  
  <p>For example: <code>test_ja.properties</code> file having following key-value.</p>
  
  <p><strong>Before Compilation</strong>
      -> <code>exception.details=\u4F8B\u5916\u306E\u8A73\u7D30.</code></p>
  
  <p><strong>After Compilation</strong>
       -> <code>exception.details=\u00004f8b\u00005916\u0000306e\u00008a73\u00007d30.</code></p>
  
  <p>I have tried and googled for same, but not getting any solution.
  I am using <code>maven-compiler-plugin</code> <code>version - 3.2</code></p>
  
  <p>Here is code snippet of <strong>pom.xml</strong></p>
  
  <pre><code>&lt;profile&gt;
  &lt;id&gt;uat&lt;/id&gt;            
  &lt;properties&gt;
     &lt;hostname&gt;&lt;/hostname&gt;
  &lt;/properties&gt;   
  &lt;activation&gt;
      &lt;property&gt;
          &lt;name&gt;env&lt;/name&gt;
          &lt;value&gt;uat&lt;/value&gt;
      &lt;/property&gt;
  &lt;/activation&gt;
  &lt;build&gt;
      &lt;plugins&gt;
  
          &lt;plugin&gt;
              &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
              &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
              &lt;version&gt;3.2&lt;/version&gt;
              &lt;configuration&gt;
                  &lt;source&gt;1.8&lt;/source&gt;
                  &lt;target&gt;1.8&lt;/target&gt;
              &lt;/configuration&gt;
          &lt;/plugin&gt;
  
          &lt;plugin&gt;
              &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
              &lt;artifactId&gt;maven-antrun-plugin&lt;/artifactId&gt;
              &lt;version&gt;1.7&lt;/version&gt;
              &lt;executions&gt;
                  &lt;execution&gt;
                      &lt;id&gt;compile-test1&lt;/id&gt;
                      &lt;phase&gt;compile&lt;/phase&gt;
                      &lt;goals&gt;
                          &lt;goal&gt;run&lt;/goal&gt;
                      &lt;/goals&gt;
                      &lt;configuration&gt;
                          &lt;tasks&gt;
                              &lt;propertyfile file="target\classes\test_ja.properties"&gt;
                                  &lt;entry key="toemail"
                                              value="test@test.com" /&gt;   &lt;/propertyfile&gt;
                          &lt;/tasks&gt;
                      &lt;/configuration&gt;
                  &lt;/execution&gt;
              &lt;/executions&gt;
          &lt;/plugin&gt;
      &lt;/plugins&gt;
      &lt;finalName&gt;UAT&lt;/finalName&gt;
  &lt;/build&gt;
  &lt;/profile&gt;
  </code></pre>