Hi,

I created and successfully deployed a struts based application on Sun ONE Application Server 7.0.

However accessing the same from browser throws the error:

Type: Exception Report

Message: Internal Server Error

Exception

javax.servlet.ServletException
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:478)
at _jasper._jsp._header_jsp._jspService(_header_jsp.java:137)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.iplanet.ias.web.jsp.JspServlet$JspServletWrapper.service(JspServlet.java:552)
at com.iplanet.ias.web.jsp.JspServlet.serviceJspFile(JspServlet.java:368)
at com.iplanet.ias.web.jsp.JspServlet.service(JspServlet.java:287)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:757)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:626)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:537)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:834)
at _jasper._jsp._index_jsp._jspService(_index_jsp.java:58)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.iplanet.ias.web.jsp.JspServlet$JspServletWrapper.service(JspServlet.java:552)
at com.iplanet.ias.web.jsp.JspServlet.serviceJspFile(JspServlet.java:368)
at com.iplanet.ias.web.jsp.JspServlet.service(JspServlet.java:287)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:720)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:309)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:158)
at com.iplanet.ias.web.WebContainer.service(WebContainer.java:850)



Root Cause
java.lang.ExceptionInInitializerError
at org.apache.struts.taglib.html.BaseTag.(BaseTag.java:93)
at _jasper._jsp._header_jsp._jspService(_header_jsp.java:96)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.iplanet.ias.web.jsp.JspServlet$JspServletWrapper.service(JspServlet.java:552)
at com.iplanet.ias.web.jsp.JspServlet.serviceJspFile(JspServlet.java:368)
at com.iplanet.ias.web.jsp.JspServlet.service(JspServlet.java:287)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:757)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:626)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:537)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:834)
at _jasper._jsp._index_jsp._jspService(_index_jsp.java:58)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.iplanet.ias.web.jsp.JspServlet$JspServletWrapper.service(JspServlet.java:552)
at com.iplanet.ias.web.jsp.JspServlet.serviceJspFile(JspServlet.java:368)
at com.iplanet.ias.web.jsp.JspServlet.service(JspServlet.java:287)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:720)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:309)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:158)
at com.iplanet.ias.web.WebContainer.service(WebContainer.java:850)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JCategoryLog does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:530)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:285)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:255)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:375)
at org.apache.struts.util.MessageResources.(MessageResources.java:105)
... 28 more
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JCategoryLog does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:415)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:523)
... 32 more
Caused by: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JCategoryLog does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:411)
... 33 more




Can anyone suggest something?

Thanks in advance.

Looks like an issue with you Log4J configuration or some sort of Log4J conflict...