troubleshooting Question

Unable to find a javac compiler;

Avatar of muthiahmerchant
muthiahmerchant asked on
JSP
5 Comments1 Solution4022 ViewsLast Modified:
Hi I am new to Java, JSP, Tomcat.

I installed tomcat and can see the index page (which is a jsp page, although if i make any changes to it, it does not show the changes when i actually open the page.) when i type http://localhost:8080/, I copied a sample jsp file and put it in the ROOT directory of tomcat. when I try to open the file, it gives me the following error.

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:439)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:497)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
      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:802)

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:407)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:497)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
      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:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0.30 logs

does jsp pages need to be compiled like java code.

Thanks in advance
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