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    If JVM throws ClassNotFoundException the class is not found in classpath. It means that something is not configured correctly. So check the relevant class is in the classpath. If the class is packaged into a jar, the jar should also in the classpath.

  2. ,

    If JVM throws ClassNotFoundException the class is not found in classpath. It means that something isn't configured correctly. So check whether the class is in the classpath. If this class is packaged to a jar file. Then the jar must also be in the lib path

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javax.servlet.ServletException: Servlet execution threw an exception at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:326) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.uploadservletrequest.UploadServletRequestFilter.processFilter(UploadServletRequestFilter.java:99) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:308) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.jsoncontenttype.JSONContentTypeFilter.processFilter(JSONContentTypeFilter.java:42) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338) at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:161) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.uploadservletrequest.UploadServletRequestFilter.processFilter(UploadServletRequestFilter.java:99) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:361) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:308) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:254) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.etag.ETagFilter.processFilter(ETagFilter.java:86) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.jsoncontenttype.JSONContentTypeFilter.processFilter(JSONContentTypeFilter.java:42) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:268) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:88) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169) at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:226) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:185) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738) at com.liferay.portal.servlet.filters.urlrewrite.UrlRewriteFilter.processFilter(UrlRewriteFilter.java:57) at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:165) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:165) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:185) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.NoClassDefFoundError: com/sun/image/codec/jpeg/ImageFormatException at com.sun.media.jai.codecimpl.JPEGImageDecoder.decodeAsRenderedImage(JPEGImageDecoder.java:46) at com.sun.media.jai.codec.ImageDecoderImpl.decodeAsRenderedImage(ImageDecoderImpl.java:140) at com.liferay.portal.image.ImageToolImpl.read(ImageToolImpl.java:580) at com.liferay.portal.image.ImageToolImpl.read(ImageToolImpl.java:424) at com.liferay.portal.image.ImageToolImpl.getImage(ImageToolImpl.java:351) at com.liferay.portal.kernel.image.ImageToolUtil.getImage(ImageToolUtil.java:144) at com.liferay.portal.service.impl.ImageLocalServiceImpl.updateImage(ImageLocalServiceImpl.java:144) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:115) at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:62) at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:51) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111) at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:175) at com.sun.proxy.$Proxy33.updateImage(Unknown Source) at com.liferay.portlet.journal.service.impl.JournalArticleLocalServiceImpl.formatImage(JournalArticleLocalServiceImpl.java:6232) at com.liferay.portlet.journal.service.impl.JournalArticleLocalServiceImpl.format(JournalArticleLocalServiceImpl.java:6081) at com.liferay.portlet.journal.service.impl.JournalArticleLocalServiceImpl.format(JournalArticleLocalServiceImpl.java:6133) at com.liferay.portlet.journal.service.impl.JournalArticleLocalServiceImpl.updateArticle(JournalArticleLocalServiceImpl.java:5012) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:67) at com.sun.proxy.$Proxy431.updateArticle(Unknown Source) at com.liferay.portlet.journal.service.JournalArticleLocalServiceWrapper.updateArticle(JournalArticleLocalServiceWrapper.java:3369) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:67) at com.sun.proxy.$Proxy432.updateArticle(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:115) at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:62) at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:51) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111) at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111) at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:175) at com.sun.proxy.$Proxy221.updateArticle(Unknown Source) at com.liferay.portlet.journal.service.impl.JournalArticleServiceImpl.updateArticle(JournalArticleServiceImpl.java:2128) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:115) at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:62) at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:51) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111) at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111) at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:111) at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:175) at com.sun.proxy.$Proxy222.updateArticle(Unknown Source) at com.liferay.portlet.journal.service.JournalArticleServiceUtil.updateArticle(JournalArticleServiceUtil.java:1904) at com.liferay.portlet.journal.action.EditArticleAction.updateArticle(EditArticleAction.java:837) at com.liferay.portlet.journal.action.EditArticleAction.processAction(EditArticleAction.java:148) at com.liferay.portal.struts.PortletRequestProcessor.process(PortletRequestProcessor.java:166) at com.liferay.portlet.StrutsPortlet.processAction(StrutsPortlet.java:218) at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:71) at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48) at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:597) at com.liferay.portlet.InvokerPortletImpl.invokeAction(InvokerPortletImpl.java:628) at com.liferay.portlet.InvokerPortletImpl.processAction(InvokerPortletImpl.java:308) at com.liferay.portlet.PortletContainerImpl._doProcessAction(PortletContainerImpl.java:389) at com.liferay.portlet.PortletContainerImpl.processAction(PortletContainerImpl.java:107) at com.liferay.portlet.SecurityPortletContainerWrapper.processAction(SecurityPortletContainerWrapper.java:109) at com.liferay.portlet.RestrictPortletContainerWrapper.processAction(RestrictPortletContainerWrapper.java:75) at com.liferay.portal.kernel.portlet.PortletContainerUtil.processAction(PortletContainerUtil.java:115) at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:386) at com.liferay.portal.action.LayoutAction.doExecute(LayoutAction.java:200) at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:95) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:168) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:650) at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:557) at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:534) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) ... 121 moreCaused by: java.lang.ClassNotFoundException: com.sun.image.codec.jpeg.ImageFormatException at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) ... 210 more