[opencms-dev] Error on creating a Webform

[Christoph Fröhlich]

I don’t know why the form generator needs JAI (Java Advanced Imaging) but it seems that it is missing in your installation.

Probably the following issue from the docker/openjdk issue tracker (https://github.com/docker-library/openjdk/issues/79) talks about the same problem.
The advice is to install JAI manually when using openjdk

Regards

Christoph


> Am 23.04.2018 um 14:32 schrieb 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) 
> 
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