从Java源文件中获取类注释

我已经设法从我的班级获得所有方法的注释.代码如下所示：

package de.mackaz;

import japa.parser.JavaParser;
import japa.parser.ParseException;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import japa.parser.ast.CompilationUnit;
import japa.parser.ast.body.MethodDeclaration;
import japa.parser.ast.expr.AnnotationExpr;
import japa.parser.ast.expr.MarkerAnnotationExpr;
import japa.parser.ast.expr.MemberValuePair;
import japa.parser.ast.expr.NormalAnnotationExpr;
import japa.parser.ast.visitor.VoidVisitorAdapter;
import java.io.FileInputStream;

public class JavaSourceUtils {

    public static void main(String[] args) throws Exception {
        File f = new File("/home/mackaz/SourceFile.java");
        inspectJavaFile(f);
    }

    public static void inspectJavaFile(File pFile) 
    throws FileNotFoundException,ParseException,IOException {
        CompilationUnit cu;
        FileInputStream in = new FileInputStream(pFile);
        try {
            cu = JavaParser.parse(in);
        } finally {
            in.close();
        }
        new MethodVisitor().visit(cu,null);
    }

    /**
     * Simple visitor implementation for visiting MethodDeclaration nodes.
     */
    private static class MethodVisitor extends VoidVisitorAdapter {

        @Override
        public void visit(MethodDeclaration n,Object arg) {
            System.out.println(n.getName());
            if (n.getAnnotations() != null) {
                for (AnnotationExpr annotation : n.getAnnotations()) {
                    System.out.println(annotation.getClass());
                    // MarkerAnnotations,for example @Test
                    if (annotation.getClass().equals(MarkerAnnotationExpr.class)) {
                        System.out.println("MarkerAnnotation:" + ((MarkerAnnotationExpr)annotation).getName());
                    }
                    if (annotation.getClass().equals(NormalAnnotationExpr.class)) {
                        for (MemberValuePair pair : ((NormalAnnotationExpr)annotation).getPairs()) {
                            if (pair.getName().equals("groups"))
                                System.out.println("Group:"" + pair.getValue() + """);
                        }
                    }
                }
            }
        }
    }
}

现在我如何获得类本身的注释？