javax.portlet.PortletException: java.lang.NoClassDefFoundError: net/htmlparser/jericho/Source

javax.portlet.PortletException: java.lang.NoClassDefFoundError: net/htmlparser/jericho/Source	at com.liferay.portal.kernel.portlet.LiferayPortlet.callActionMethod(LiferayPortlet.java:202)	at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:395)	at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:93)	at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.processAction(MVCPortlet.java:252)	at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:71)	at com.liferay.portlet.CheckboxParametersPortletFilter.doFilter(CheckboxParametersPortletFilter.java:82)	at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:68)	at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)	at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:105)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)	at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletExceptionAdapter.service(ServletExceptionAdapter.java:68)	at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153)	at org.eclipse.equinox.http.servlet.internal.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:50)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:119)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:115)	at com.liferay.portal.osgi.web.wab.extender.internal.adapter.FilterExceptionAdapter.doFilter(FilterExceptionAdapter.java:46)	at org.eclipse.equinox.http.servlet.internal.registration.FilterRegistration.doFilter(FilterRegistration.java:121)	at org.eclipse.equinox.http.servlet.internal.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:45)	at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:71)	at org.eclipse.equinox.http.servlet.internal.context.DispatchTargets.doDispatch(DispatchTargets.java:103)	at org.eclipse.equinox.http.servlet.internal.servlet.RequestDispatcherAdaptor.include(RequestDispatcherAdaptor.java:48)	at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:525)	at com.liferay.portlet.InvokerPortletImpl.invokeAction(InvokerPortletImpl.java:571)	at com.liferay.portlet.InvokerPortletImpl.processAction(InvokerPortletImpl.java:330)	at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.processAction(MonitoringInvokerPortlet.java:189)	at com.liferay.portlet.PortletContainerImpl._doProcessAction(PortletContainerImpl.java:411)	at com.liferay.portlet.PortletContainerImpl.processAction(PortletContainerImpl.java:116)	at com.liferay.portlet.SecurityPortletContainerWrapper.processAction(SecurityPortletContainerWrapper.java:94)	at com.liferay.portlet.RestrictPortletContainerWrapper.processAction(RestrictPortletContainerWrapper.java:75)	at com.liferay.portal.kernel.portlet.PortletContainerUtil.processAction(PortletContainerUtil.java:114)	at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:314)	at com.liferay.portal.action.LayoutAction.doExecute(LayoutAction.java:178)	at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:75)	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)	at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:169)	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)	at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:568)	at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:545)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:119)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.monitoring.internal.servlet.filter.MonitoringFilter.processFilter(MonitoringFilter.java:180)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.uploadservletrequest.UploadServletRequestFilter.processFilter(UploadServletRequestFilter.java:99)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:301)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.jsoncontenttype.JSONContentTypeFilter.processFilter(JSONContentTypeFilter.java:42)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:115)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:720)	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)	at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:172)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:119)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.monitoring.internal.servlet.filter.MonitoringFilter.processFilter(MonitoringFilter.java:180)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.security.sso.ntlm.internal.servlet.filter.NtlmPostFilter.processFilter(NtlmPostFilter.java:107)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.uploadservletrequest.UploadServletRequestFilter.processFilter(UploadServletRequestFilter.java:99)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:336)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:125)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:301)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:254)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.etag.ETagFilter.processFilter(ETagFilter.java:86)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.jsoncontenttype.JSONContentTypeFilter.processFilter(JSONContentTypeFilter.java:42)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:274)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:88)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:142)	at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:260)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)	at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)	at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)	at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)	at com.liferay.portal.servlet.filters.urlrewrite.UrlRewriteFilter.processFilter(UrlRewriteFilter.java:65)	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:168)	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:168)	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:188)	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:115)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.NoClassDefFoundError: net/htmlparser/jericho/Source	at com.liferay.knowledgebase.admin.util.AdminUtil.getKBArticleDiff(AdminUtil.java:367)	at com.liferay.knowledgebase.service.impl.KBArticleLocalServiceImpl.getEmailKBArticleDiffs(KBArticleLocalServiceImpl.java:1549)	at com.liferay.knowledgebase.service.impl.KBArticleLocalServiceImpl.notifySubscribers(KBArticleLocalServiceImpl.java:1798)	at com.liferay.knowledgebase.service.impl.KBArticleLocalServiceImpl.updateStatus(KBArticleLocalServiceImpl.java:1300)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:153)	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:85)	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:58)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.service.ServiceContextAdvice.invoke(ServiceContextAdvice.java:40)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:173)	at com.sun.proxy.$Proxy657.updateStatus(Unknown Source)	at com.liferay.knowledgebase.service.KBArticleLocalServiceUtil.updateStatus(KBArticleLocalServiceUtil.java:721)	at com.liferay.knowledgebase.admin.workflow.KBArticleWorkflowHandler.updateStatus(KBArticleWorkflowHandler.java:60)	at com.liferay.knowledgebase.admin.workflow.KBArticleWorkflowHandler.updateStatus(KBArticleWorkflowHandler.java:34)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:67)	at com.sun.proxy.$Proxy675.updateStatus(Unknown Source)	at com.liferay.portal.kernel.workflow.WorkflowHandlerRegistryUtil.startWorkflowInstance(WorkflowHandlerRegistryUtil.java:172)	at com.liferay.portal.kernel.workflow.WorkflowHandlerRegistryUtil.startWorkflowInstance(WorkflowHandlerRegistryUtil.java:91)	at com.liferay.knowledgebase.service.impl.KBArticleLocalServiceImpl.updateKBArticle(KBArticleLocalServiceImpl.java:1124)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:153)	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:85)	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:58)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.service.ServiceContextAdvice.invoke(ServiceContextAdvice.java:40)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:173)	at com.sun.proxy.$Proxy657.updateKBArticle(Unknown Source)	at com.liferay.knowledgebase.service.KBArticleLocalServiceUtil.updateKBArticle(KBArticleLocalServiceUtil.java:682)	at com.liferay.knowledgebase.admin.importer.KBArticleImporter.addKBArticleMarkdown(KBArticleImporter.java:147)	at com.liferay.knowledgebase.admin.importer.KBArticleImporter.processKBArticleFiles(KBArticleImporter.java:294)	at com.liferay.knowledgebase.admin.importer.KBArticleImporter.processZipFile(KBArticleImporter.java:76)	at com.liferay.knowledgebase.service.impl.KBArticleLocalServiceImpl.addKBArticlesMarkdown(KBArticleLocalServiceImpl.java:266)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:153)	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:85)	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:58)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.service.ServiceContextAdvice.invoke(ServiceContextAdvice.java:40)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:173)	at com.sun.proxy.$Proxy657.addKBArticlesMarkdown(Unknown Source)	at com.liferay.knowledgebase.service.impl.KBArticleServiceImpl.addKBArticlesMarkdown(KBArticleServiceImpl.java:107)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:153)	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:85)	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:58)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.service.ServiceContextAdvice.invoke(ServiceContextAdvice.java:40)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:127)	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:173)	at com.sun.proxy.$Proxy661.addKBArticlesMarkdown(Unknown Source)	at com.liferay.knowledgebase.service.KBArticleServiceUtil.addKBArticlesMarkdown(KBArticleServiceUtil.java:63)	at com.liferay.knowledgebase.admin.portlet.AdminPortlet.importFile(AdminPortlet.java:158)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at com.liferay.portal.kernel.portlet.LiferayPortlet.callActionMethod(LiferayPortlet.java:184)	... 181 moreCaused by: java.lang.ClassNotFoundException: net.htmlparser.jericho.Source cannot be found by knowledge-base-portlet_7.0.0.1	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:444)	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:357)	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:349)	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	... 270 more