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Oracle Webcenter Portal Access URL Goes Blank (Doc ID 2445476.1)

Last updated on SEPTEMBER 25, 2018

Applies to:

Oracle WebCenter Portal - Version 12.2.1.3.0 and later
Information in this document applies to any platform.

Symptoms

While accessing the webcenter portal URL http://<hostname>:8888/webcenter/, it shows a blank page rather than portal login page. Below errors seen in log


[2018-09-07T12:08:11.991+05:30] [WC_Portal] [ERROR] [] [oracle.webcenter.webcenterapp.internal.view.webapp] [tid: [ACTIVE].ExecuteThread: '36' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: anonymous] [ecid: a2381a6c-bef2-4a3f-899b-a7a74d7ecf91-000000e8,0] [APP: webcenter] [partition-name: DOMAIN] [tenant-name: GLOBAL] [DSID: 0000MMmk9gABP925zrWByW1R^XfL000002] [[
javax.el.ELException: java.lang.NoClassDefFoundError: Could not initialize class oracle.webcenter.framework.view.support.impl.DeviceSupportUtils
at javax.el.BeanELResolver.getValue(BeanELResolver.java:367)
at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:188)
at com.sun.el.parser.AstValue.getValue(AstValue.java:139)
at com.sun.el.parser.AstValue.getValue(AstValue.java:203)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226)
at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
at weblogic.servlet.jsp.ELHelper.evaluate(ELHelper.java:32)
at jsp_servlet._system.__welcome._jspService(__welcome.java:90)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:35)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:286)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.webcenter.content.integration.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:168)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:207)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.webcenter.webcenterapp.internal.view.webapp.WebCenterShellFilter.doFilter(WebCenterShellFilter.java:995)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adf.share.http.ServletADFFilter.doFilter(ServletADFFilter.java:77)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:169)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.webcenter.webcenterapp.internal.view.webapp.WebCenterLocaleWrapperFilter.processFilters(WebCenterLocaleWrapperFilter.java:396)

...

Caused by: java.lang.NoClassDefFoundError: Could not initialize class oracle.webcenter.framework.view.support.impl.DeviceSupportUtils
at oracle.webcenter.framework.view.support.impl.DeviceSupportImpl.getDeviceByUserAgent(DeviceSupportImpl.java:403)
at oracle.webcenter.framework.view.support.DeviceAgent.getDevice(DeviceAgent.java:292)
at oracle.webcenter.framework.view.support.DeviceAgent.getDeviceGroups(DeviceAgent.java:319)
at oracle.webcenter.framework.view.support.DeviceAgent.getCurrentScopeDeviceGroup(DeviceAgent.java:415)
at oracle.webcenter.webcenterapp.internal.view.backing.GatewayBean.getDeviceGroupSpecificPage(GatewayBean.java:227)
at oracle.webcenter.webcenterapp.internal.view.backing.GatewayBean._getRealPageURI(GatewayBean.java:160)
at oracle.webcenter.webcenterapp.internal.view.backing.GatewayBean.getRealLandingPageURI(GatewayBean.java:69)
at sun.reflect.GeneratedMethodAccessor1739.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:362)
... 73 more

 

 

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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