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LAS 6.3 Exception on servlets/constrain



Hello All,

I'm getting an exception (stack trace below) trying to hit servlets/constrain and was hoping someone might have some suggestions. It looks like a resource or config info is not being located.

The system configuration is a little complex, but running RHEL3.0, Tomcat 5.0.24, apache 2.0.49. LAS is accessed via a virtual host, and the url pattern http://las.ngdc.noaa.gov/las/ is mapped to the "las" tomcat context. The mysql database "las0" is located on a separate host. What user does las attempt to connect to the database with? the one specified on install?

Thanks for any suggestions!

-- john

=====================================================
John Cartwright
Associate Scientist
Geospatial Data Services Group
CIRES, National Geophysical Data Center/NOAA
(303) 497-6284
John.C.Cartwright@noaa.gov
=====================================================


2004-05-27 10:07:39 StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at org.apache.catalina.loader.WebappClassLoader.findResourceInternal(WebappClassLoader.java:1774
)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1575)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:860)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1307)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1189)
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:148)
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:69)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:156)
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:69)
at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:542)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:135)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:283)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:296)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:372)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:694)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:626)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:807)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:644)
at java.lang.Thread.run(Thread.java:534)



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