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    <p>Answering my own question:</p> <p>Here is the relevant bit of code to insert the super call:</p> <p>these fields are all initialized in <a href="http://download.oracle.com/javase/6/docs/api/javax/annotation/processing/AbstractProcessor.html#init%28javax.annotation.processing.ProcessingEnvironment%29" rel="nofollow noreferrer">init(env)</a> or <a href="http://download.oracle.com/javase/6/docs/api/javax/annotation/processing/AbstractProcessor.html#process%28java.util.Set,%20javax.annotation.processing.RoundEnvironment%29" rel="nofollow noreferrer">process(annotations, roundEnv)</a>:</p> <pre><code>private static Filer filer; private static JavacProcessingEnvironment environment; private static Messager messager; private static Types types; private static JavacElements elementUtils; private Trees trees; private TreeMaker treeMaker; private IdentityHashMap&lt;JCCompilationUnit, Void&gt; compilationUnits; private Map&lt;String, JCCompilationUnit&gt; typeMap; </code></pre> <p>And here is the logic that is called if a subtype of <code>AbstractBehavior</code> that has the annotation does not override the <code>renderHead(response)</code> method:</p> <pre><code>private void addMissingSuperCall(final TypeElement element){ final String className = element.getQualifiedName().toString(); final JCClassDecl classDeclaration = // look up class declaration from a local map this.findClassDeclarationForName(className); if(classDeclaration == null){ this.error(element, "Can't find class declaration for " + className); } else{ this.info(element, "Creating renderHead(response) method"); final JCTree extending = classDeclaration.extending; if(extending != null){ final String p = extending.toString(); if(p.startsWith("com.myclient")){ // leave it alone, we'll edit the super class instead, if // necessary return; } else{ // @formatter:off (turns off eclipse formatter if configured) // define method parameter name final com.sun.tools.javac.util.Name paramName = elementUtils.getName("response"); // Create @Override annotation final JCAnnotation overrideAnnotation = this.treeMaker.Annotation( Processor.buildTypeExpressionForClass( this.treeMaker, elementUtils, Override.class ), // with no annotation parameters List.&lt;JCExpression&gt; nil() ); // public final JCModifiers mods = this.treeMaker.Modifiers(Flags.PUBLIC, List.of(overrideAnnotation)); // parameters:(final IHeaderResponse response) final List&lt;JCVariableDecl&gt; params = List.of(this.treeMaker.VarDef(this.treeMaker.Modifiers(Flags.FINAL), paramName, Processor.buildTypeExpressionForClass(this.treeMaker, elementUtils, IHeaderResponse.class), null)); //method return type: void final JCExpression returnType = this.treeMaker.TypeIdent(TypeTags.VOID); // super.renderHead(response); final List&lt;JCStatement&gt; statements = List.&lt;JCStatement&gt; of( // Execute this: this.treeMaker.Exec( // Create a Method call: this.treeMaker.Apply( // (no generic type arguments) List.&lt;JCExpression&gt; nil(), // super.renderHead this.treeMaker.Select( this.treeMaker.Ident( elementUtils.getName("super") ), elementUtils.getName("renderHead") ), // (response) List.&lt;JCExpression&gt; of(this.treeMaker.Ident(paramName))) ) ); // build code block from statements final JCBlock body = this.treeMaker.Block(0, statements); // build method final JCMethodDecl methodDef = this.treeMaker.MethodDef( // public mods, // renderHead elementUtils.getName("renderHead"), // void returnType, // &lt;no generic parameters&gt; List.&lt;JCTypeParameter&gt; nil(), // (final IHeaderResponse response) params, // &lt;no declared exceptions&gt; List.&lt;JCExpression&gt; nil(), // super.renderHead(response); body, // &lt;no default value&gt; null); // add this method to the class tree classDeclaration.defs = classDeclaration.defs.append(methodDef); // @formatter:on turn eclipse formatter on again this.info(element, "Created renderHead(response) method successfully"); } } } } </code></pre>
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    1. USSean Patrick Floyd
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    1. COvery similar to what I'm loooking for. Any maven-buildable code?
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    2. COI built this with maven, of course
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    3. COI expected that. Could you provide me with a link to download and try that code, instead of me error-pronely inserting it in a maven project?
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