[opencms-dev] Web Forms Captcha not showing - NoClassDefFoundError

[Asif G. Khan]

Hello All,
 We have both V8 and plain versions of WebForms installed. Everything is working fine except Captcha. For Captcha no image is being generated and opencms is throwing following exception:

Please note that Jcaptcha jar is available and I am using JRE-8. What can be the possible problem and how can I get it solved ... Any suggestions?


An error occurred.<br />java.lang.NoClassDefFoundError: Could not initialize class com.octo.captcha.image.gimpy.GimpyFactory

javax.servlet.ServletException: java.lang.NoClassDefFoundError: Could not initialize class com.octo.captcha.image.gimpy.GimpyFactory
        at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:909)
        at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:838)
        at org.apache.jsp.WEB_002dINF.jsp.offline.system.modules.com_alkacon_opencms_v8_formgenerator.pages.captcha_jsp._jspService(captcha_jsp.java:138)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:715)
        at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:581)
        at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:517)
        at org.opencms.flex.CmsFlexRequestDispatcher.includeExternal(CmsFlexRequestDispatcher.java:191)
        at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:165)
        at org.opencms.loader.CmsJspLoader.service(CmsJspLoader.java:658)
        at org.opencms.flex.CmsFlexRequestDispatcher.includeInternalWithCache(CmsFlexRequestDispatcher.java:441)
        at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:169)
        at org.opencms.loader.CmsJspLoader.dispatchJsp(CmsJspLoader.java:980)
        at org.opencms.loader.CmsJspLoader.load(CmsJspLoader.java:531)
        at org.opencms.loader.CmsResourceManager.loadResource(CmsResourceManager.java:1191)
        at org.opencms.main.OpenCmsCore.showResource(OpenCmsCore.java:1776)
        at org.opencms.main.OpenCmsServlet.doGet(OpenCmsServlet.java:159)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
        at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
        at org.apache.catalina.valves.rewrite.RewriteValve.invoke(RewriteValve.java:580)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:495)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:767)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1347)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.octo.captcha.image.gimpy.GimpyFactory
        at com.alkacon.opencms.v8.formgenerator.CmsCaptchaEngine.initGimpyFactory(CmsCaptchaEngine.java:250)
        at com.alkacon.opencms.v8.formgenerator.CmsCaptchaEngine.<init>(CmsCaptchaEngine.java:114)
        at com.alkacon.opencms.v8.formgenerator.CmsCaptchaService.<init>(CmsCaptchaService.java:68)
        at com.alkacon.opencms.v8.formgenerator.CmsCaptchaServiceCache.getCaptchaService(CmsCaptchaServiceCache.java:155)
        at com.alkacon.opencms.v8.formgenerator.CmsCaptchaField.writeCaptchaImage(CmsCaptchaField.java:243)
        at org.apache.jsp.WEB_002dINF.jsp.offline.system.modules.com_alkacon_opencms_v8_formgenerator.pages.captcha_jsp._jspService(captcha_jsp.java:124)
        ... 46 more



Thanks

A.G. Khan
Associate Architect
Global Rescue LLC
Ph: 92-51-2804125
agkhan at globalrescue.com<mailto:agkhan at globalrescue.com>

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