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POHow to compile the annotation processor with Ant?
 

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  1. POHow to compile the annotation processor with Ant?
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    <p>The question seems to be obvious, but the implementation is pretty hard for me.</p> <p>My goal is to write <em>Ant build script</em> to <strong>compile some classes that require another classes generated</strong> by Annotation Processor. I have a custom annotations and it's processor implementation (inherited from <code>AbstractProcessor</code> class).</p> <p>As I understand I need to:</p> <ol> <li>Compile the Annotation Processor </li> <li>Run the compiler over some annotated classes to generate the new ones.</li> <li>Compile the classes that require generated classes</li> </ol> <p>The code (step 1 &amp; 2):</p> <hr> <pre><code>&lt;target name="compileAnnotationProcessor"&gt; &lt;javac destdir="${OUTPUT_DIR}" debug="true" failonerror="true" includeantruntime="false" classpath="${java.class.path}"&gt; &lt;src&gt; &lt;pathelement path="${PROJECT_DIR}/tools/src"/&gt; &lt;/src&gt; &lt;include name="/path/to/annotation/processor/package/**"/&gt; &lt;/javac&gt; &lt;/target&gt; &lt;target name="generateFilesWithAPT" depends="compileAnnotationProcessor"&gt; &lt;javac destdir="${OUTPUT_DIR}" includeantruntime="false" listfiles="false" fork="true" debug="true" verbose="true"&gt; &lt;src&gt; &lt;pathelement path="${PROJECT_DIR}/common/src/"/&gt; &lt;/src&gt; &lt;include name="/path/to/files/to/compile/**"/&gt; &lt;classpath&gt; &lt;pathelement path="${OUTPUT_DIR}"/&gt; &lt;pathelement path="${java.class.path}"/&gt; &lt;/classpath&gt; &lt;compilerarg line="-proc:only"/&gt; &lt;compilerarg line="-processorpath ${OUTPUT_DIR}/path/to/annotation/processor/package/annProcessorImplement"/&gt; &lt;/javac&gt; &lt;/target&gt; </code></pre> <hr> <p>Actually, the first task is performing good and compiles the .class file for the Annotation processor implementation. It is stopping at 2nd task.</p> <p>Ant says: <code>Annotation processing without compilation requested but no processors were found.</code></p> <p>What am I doing wrong? Maybe I should put the annotation processor class in a <code>.jar</code>? Or provide a file name with .class extension as <code>-processorpath</code> argument? I tried several options but nothing helps..</p> <hr> <p>Notes:</p> <p>I'm using ant <code>javac</code> task instead of <code>apt</code>one because <a href="http://docs.oracle.com/javase/7/docs/technotes/guides/apt/GettingStarted.html" rel="nofollow noreferrer">documentation</a> claims that apt tool as well as <code>com.sun.mirror</code> API is deprecated. I've also looked through this <a href="https://stackoverflow.com/questions/3644069/java-6-annotation-processing-configuration-with-ant">question</a>, but there is no information how to compile the processor in right way.</p> <p>I'm using:</p> <ul> <li>Java 1.6 </li> <li>Ant 1.8.2</li> </ul>
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