title: Tycho Compiler not picking up generated source code
body: <p>I am fairly new to the world of maven and tycho, so hopefully this is just something obvious that I am missing. I am trying to build a plugin using tycho but I am unable to get the tycho-compiler-plugin to recognise source code that is generated as a part of the build process.</p>
  
  <p>Here is a copy of a test pom that I've put together to demonstrate:</p>
  
  <pre><code>&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
  
      &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
      &lt;groupId&gt;rt&lt;/groupId&gt;
      &lt;artifactId&gt;rt.webservice&lt;/artifactId&gt;
      &lt;version&gt;1.0.0-SNAPSHOT&lt;/version&gt;
      &lt;packaging&gt;eclipse-plugin&lt;/packaging&gt;
  
      &lt;properties&gt;
          &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.sourceEncoding&gt;
          &lt;tycho-version&gt;0.16.0&lt;/tycho-version&gt;
      &lt;/properties&gt;
  
      &lt;build&gt;
          &lt;plugins&gt;
  
              &lt;plugin&gt;
                  &lt;groupId&gt;org.eclipse.tycho&lt;/groupId&gt;
                  &lt;artifactId&gt;tycho-maven-plugin&lt;/artifactId&gt;
                  &lt;version&gt;${tycho-version}&lt;/version&gt;
                  &lt;extensions&gt;true&lt;/extensions&gt;
              &lt;/plugin&gt;
  
              &lt;plugin&gt;
                  &lt;groupId&gt;org.eclipse.tycho&lt;/groupId&gt;
                  &lt;artifactId&gt;tycho-compiler-plugin&lt;/artifactId&gt;
                  &lt;version&gt;${tycho-version}&lt;/version&gt;
                  &lt;configuration&gt;
                      &lt;verbose&gt;true&lt;/verbose&gt;
                      &lt;source&gt;1.6&lt;/source&gt;
                      &lt;target&gt;1.6&lt;/target&gt;
                  &lt;/configuration&gt;
              &lt;/plugin&gt;
  
              &lt;plugin&gt;
                  &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
                  &lt;artifactId&gt;jaxws-maven-plugin&lt;/artifactId&gt;
                  &lt;version&gt;1.12&lt;/version&gt;
                  &lt;executions&gt;
                      &lt;execution&gt;
                          &lt;id&gt;generate-ws-code&lt;/id&gt;
                          &lt;phase&gt;generate-sources&lt;/phase&gt;
                          &lt;goals&gt;
                              &lt;goal&gt;wsimport&lt;/goal&gt;
                          &lt;/goals&gt;
                          &lt;configuration&gt;
                              &lt;wsdlDirectory&gt;${basedir}/wsdl&lt;/wsdlDirectory&gt;
                              &lt;verbose&gt;true&lt;/verbose&gt;
                          &lt;/configuration&gt;
                      &lt;/execution&gt;
                  &lt;/executions&gt;
              &lt;/plugin&gt;
          &lt;/plugins&gt;
  
      &lt;/build&gt;
  
  &lt;/project&gt;
  </code></pre>
  
  <p>I have a java class in the src folder that references some of the generated source code, which then fails to compile.</p>
  
  <p>If I remove tycho and use the standard maven-compiler-plugin, it automatically picks up the code generated during the build and the java class mentioned above compiles as expected.</p>
  
  <p>Can someone tell me what I am doing wrong?</p>