[opencms-dev] Error on creating a Webform

[d.menne at schrack-seconet.com]

I try to user the Webform Module "com.alkacon.opencms.v8.formgenerator", 
but I can't create a webform.
The module configurations I left how they where.
I tried to drag the Webform into my page in ADE mode, but it gives me the 
following error:

Container-page element "/.content/v8-webform/wf_00001.html" could not be 
rendered with formatter 
"/system/modules/com.alkacon.opencms.v8.formgenerator/elements/form.jsp". 

javax.servlet.ServletException: java.lang.NoClassDefFoundError: 
com/sun/image/codec/jpeg/ImageFormatException

javax.servlet.jsp.JspException: javax.servlet.ServletException: 
java.lang.NoClassDefFoundError: 
com/sun/image/codec/jpeg/ImageFormatException
                 at 
org.opencms.jsp.CmsJspTagInclude.includeActionNoCache(CmsJspTagInclude.java:326)
                 at 
org.opencms.jsp.CmsJspTagInclude.includeTagAction(CmsJspTagInclude.java:244)
                 at 
org.opencms.jsp.CmsJspTagContainer.renderContainerElement(CmsJspTagContainer.java:978)
                 at 
org.opencms.jsp.CmsJspTagContainer.doStartTag(CmsJspTagContainer.java:347)
                 at 
org.apache.jsp.WEB_002dINF.jsp.offline.system.modules.com_alkacon_opencms_v8_template3.templates.main_jsp._jspx_meth_cms_005fcontainer_005f3(main_jsp.java:1095)
                 at 
org.apache.jsp.WEB_002dINF.jsp.offline.system.modules.com_alkacon_opencms_v8_template3.templates.main_jsp._jspService(main_jsp.java:269)
                 at 
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
                 at 
javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
                 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:742)
                 at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
                 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
                 at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:728)
                 at 
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:590)
                 at 
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:524)
                 at 
org.opencms.flex.CmsFlexRequestDispatcher.includeExternal(CmsFlexRequestDispatcher.java:188)
                 at 
org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:163)
                 at 
org.opencms.loader.CmsJspLoader.service(CmsJspLoader.java:661)
                 at 
org.opencms.flex.CmsFlexRequestDispatcher.includeInternalWithCache(CmsFlexRequestDispatcher.java:417)
                 at 
org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:167)
                 at 
org.opencms.loader.CmsJspLoader.dispatchJsp(CmsJspLoader.java:946)
                 at 
org.opencms.loader.CmsJspLoader.load(CmsJspLoader.java:523)
                 at 
org.opencms.loader.CmsXmlContainerPageLoader.load(CmsXmlContainerPageLoader.java:114)
                 at 
org.opencms.loader.CmsResourceManager.loadResource(CmsResourceManager.java:1183)
                 at 
org.opencms.main.OpenCmsCore.showResource(OpenCmsCore.java:1680)
                 at 
org.opencms.main.OpenCmsServlet.doGet(OpenCmsServlet.java:153)

usw....
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