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    <p>I found a solution for this, is not the optimal solution but it works, here it goes:</p> <p>captcha.xhtml</p> <pre><code>&lt;table border="0"&gt; &lt;tr&gt; &lt;td&gt; &lt;h:graphicImage url="#{request.contextPath}/../jcaptcha"/&gt; &lt;/td&gt; &lt;td&gt; &lt;input type='text' name='j_captcha_response' value='' /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </code></pre> <p>CaptchaServlet doGet method:</p> <pre><code> protected void doGet(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException { byte[] captchaChallengeAsJpeg = null; // the output stream to render the captcha image as jpeg into ByteArrayOutputStream jpegOutputStream = new ByteArrayOutputStream(); try { // get the session id that will identify the generated captcha. //the same id must be used to validate the response, the session id is a good candidate! String captchaId = httpServletRequest.getSession().getId(); // call the ImageCaptchaService getChallenge method BufferedImage challenge = CaptchaServiceSingleton.getImageChallengeForID(captchaId, httpServletRequest.getLocale()); // a jpeg encoder JPEGImageEncoder jpegEncoder = JPEGCodec.createJPEGEncoder(jpegOutputStream); jpegEncoder.encode(challenge); } catch (IllegalArgumentException e) { httpServletResponse.sendError(HttpServletResponse.SC_NOT_FOUND); return; } catch (CaptchaServiceException e) { httpServletResponse.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); return; } captchaChallengeAsJpeg = jpegOutputStream.toByteArray(); // flush it in the response httpServletResponse.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1. httpServletResponse.setHeader("Pragma", "no-cache"); httpServletResponse.setDateHeader("Expires", 0); httpServletResponse.setContentType("image/jpeg"); ServletOutputStream responseOutputStream = httpServletResponse.getOutputStream(); responseOutputStream.write(captchaChallengeAsJpeg); responseOutputStream.flush(); responseOutputStream.close(); } </code></pre> <p>created CaptchaServiceRequestSingleton.java</p> <pre><code> package com.myapp.web.common.listener; import java.awt.image.BufferedImage; import java.util.HashMap; import java.util.Locale; import com.octo.captcha.service.image.DefaultManageableImageCaptchaService; import com.octo.captcha.service.image.ImageCaptchaService; public class CaptchaServiceSingleton { private static ImageCaptchaService instance = new DefaultManageableImageCaptchaService(); private static final int MAX_CACHE_SIZE = 200; private static HashMap&lt;String, BufferedImage&gt; captchaImgCache = new HashMap&lt;String, BufferedImage&gt;(); public static ImageCaptchaService getInstance(){ return instance; } public static BufferedImage getImageChallengeForID(String id, Locale locale) { if (captchaImgCache.containsKey(id)) { return captchaImgCache.get(id); } else { BufferedImage bImage = instance.getImageChallengeForID(id, locale); // if limit reached reset captcha cache if (captchaImgCache.size() &gt; MAX_CACHE_SIZE) { captchaImgCache = new HashMap&lt;String, BufferedImage&gt;(); } captchaImgCache.put(id, bImage); return bImage; } } public static void resetImageChallengeForID(String id) { if (captchaImgCache.containsKey(id)) { captchaImgCache.remove(id); } } } </code></pre> <p>when clicking on "Create Account" button Captcha is reset:</p> <p>CustomerMB.openCreateCustomerAccount():</p> <pre><code>public String openCreateCustomerAccount() { customerAccountEditVO = new CustomerAccountVO(); screenComponent.setPageName(NameConstants.CREATE); getUserMB().resetCaptcha(); return null; } </code></pre> <p>in UserMB.resetCaptcha():</p> <pre><code>public String resetCaptcha() { CaptchaServiceSingleton.resetImageChallengeForID(JSFUtil.getRequest().getRequestedSessionId()); return null; } </code></pre> <p>Perhaps it's not the perfect solution but at least it's working for all Browsers.</p>
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    1. POJSF 2 Captcha using <h:graphicImage rendering twice for Servlet generated image value working only for Chrome
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