hi, look for tools.jar. This file must be in the classpath.
greetings alexander > -----Ursprüngliche Nachricht----- > Von: lunasahu [SMTP:[EMAIL PROTECTED] > Gesendet am: Dienstag, 18. März 2003 09:44 > An: [EMAIL PROTECTED] > Betreff: Apache Tomcat/4.0.1 - HTTP Status 500 - Internal Server > Error > > This is the error during jsp execution. > How to solve this error; > > > > > > Apache Tomcat/4.0.1 - HTTP Status 500 - Internal Server Error > > > -------------------------------------------------------------------------- > ------ > > > type Exception report > > > message Internal Server Error > > > description The server encountered an internal error (Internal Server > Error) that prevented it from fulfilling this request. > > > exception > > > javax.servlet.ServletException: sun/tools/javac/Main > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:484) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicati > onFilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilter > Chain.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:201) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java > :566) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBa > se.java:472) > 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:2344) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:1 > 64) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java > :566) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValv > e.java:170) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java > :564) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:1 > 70) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java > :564) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462) > 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.ja > va:163) > 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.connector.http.HttpProcessor.process(HttpProcessor.jav > a:1011) > at > org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:11 > 06) > at java.lang.Thread.run(Unknown Source) > > > > root cause > > > java.lang.NoClassDefFoundError: sun/tools/javac/Main > at > org.apache.jasper.compiler.SunJavaCompiler.compile(SunJavaCompiler.java:12 > 8) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:271) > at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:546) > at > org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(Jsp > Servlet.java:177) > at > org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet. > java:189) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicati > onFilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilter > Chain.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:201) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java > :566) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBa > se.java:472) > 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:2344) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:1 > 64) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java > :566) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValv > e.java:170) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java > :564) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:1 > 70) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java > :564) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462) > 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.ja > va:163) > 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.connector.http.HttpProcessor.process(HttpProcessor.jav > a:1011) > at > org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:11 > 06) > at java.lang.Thread.run(Unknown Source) > > > > > > -------------------------------------------------------------------------- > ------ > > Get Your 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