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Posted to users@tomcat.apache.org by micael <ca...@harbornet.com> on 2002/08/19 18:48:54 UTC
Re: It would be great IF somebody answered me, ONCE, for
change :(
You are getting a null pointer exception because one of your variables
referencing an object has not been instantiated and has a null value. That
is the answer to your question.
At 08:14 AM 8/19/2002 -0700, you wrote:
>I keep on asking this question but noone helps. Is it
>a bug in TC?
>
>Why do I get NullPointerException? If I press refresh
>a couple of times I would go through.
>
>2002-08-19 00:53:32 StandardWrapperValve[jsp]:
>Servlet.service() for servlet jsp threw exception
>java.lang.NullPointerException
> at
>org.postgresql.core.QueryExecutor.execute(QueryExecutor.java:61)
> at
>org.postgresql.Connection.ExecSQL(Connection.java:398)
> at
>org.postgresql.jdbc2.Statement.execute(Statement.java:130)
> at
>org.postgresql.jdbc2.Statement.executeQuery(Statement.java:54)
> at
>org.postgresql.jdbc2.PreparedStatement.executeQuery(PreparedStatement.java:99)
> at
>com.codestudio.sql.PoolManPreparedStatement.executeQuery(Unknown
>Source)
> at
>org.apache.jsp.AccountAccess$jsp._jspService(AccountAccess$jsp.java:207)
> at
>org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
> at
>javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
>org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
> at
>org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
> at
>org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
> at
>javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
> at
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
> at
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
> at
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
> at
>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
> at
>org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:531)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
> at
>org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
> at
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
> at
>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
>org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
> at
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
> at
>org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
> at
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
> at
>org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
> at
>org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:392)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
> at
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
> at
>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
> at
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
> at
>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
> at
>org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
>org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:458)
> at
>org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:551)
> at java.lang.Thread.run(Thread.java:536)
>
>
>
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