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Posted on 2006-11-02
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Last Modified: 2010-03-04
I get following error when trying to run my jsp page. Its says javac compiler error. I do have CLASSPATH value = . and PATH=C:\Sun\AppServer\bin;C:\Sun\AppServer\jdk\bin;C:\jboss-4.0.0\bin\run.jar;C:>set PATH=%PATH%;%JAVA_HOME%\bin

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP
      org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:97)
      org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:346)
      org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:414)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
      org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
      org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
      org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
      org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
      javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
      com.ibm.faces.context.MultipartExternalContextImpl.dispatch(MultipartExternalContextImpl.java:320)
      com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:142)
      com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
      com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
      com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
      javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
      org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)


root cause

Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
      org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:105)
      org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:929)
      org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:758)
      org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
      org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
      org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
      org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
      org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
      javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
      com.ibm.faces.context.MultipartExternalContextImpl.dispatch(MultipartExternalContextImpl.java:320)
      com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:142)
      com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
      com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
      com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
      javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
      org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)


note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

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Question by:suketu9
1 Comment
 
LVL 19

Accepted Solution

by:
ramazanyich earned 250 total points
ID: 17869592
To be able to compile JSP pages you need an JDK (not JRE). On download page (http://java.sun.com/javase/downloads/index.jsp) of Sun look for JDK 5 download.
Then install it and point JAVA_HOME variable to the root directpry of your installation.
For example you installed JDK to C:\jdk1.5.0 then you should set JAVA_HOME variable like that:
>set JAVA_HOME=c:\jdk1.5.0
or you can put it in catalina.bat file in TOMCAT_HOME/bin directory.
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