Exception while executing JSP in TOMCAT

Question

Hi,
I am new to Tomcat 5.0. I saved the JSP file in webapps/root folder. I have JDK1.3.1 and JRE 1.4.1. When I am executing the jsp, I am getting the following exception.
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Compiling 1 source file
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\test_jsp.java:9: cannot access java.lang.Object
bad class file: C:\Program Files\Java\j2re1.4.1_03\lib\rt.jar(java/lang/Object.class)
class file has wrong version 48.0, should be 47.0
Please remove or make sure it appears in the correct subdirectory of the classpath.
implements org.apache.jasper.runtime.JspSourceDependent {
^
1 error
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:83)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:315)
     org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:406)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:463)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:442)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:430)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:274)
     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)
If I remove JRE 1.4.1 and install previous version i.e. 1.3.1, the tomcat server is not starting. How do I proceed. I need help in executing servlets also. I copied the tools.jar file into the common/lib folder.
I am awaiting for the replies. Thanks in advance.
sampath

Answer 1

Hmmm. It seems that Tomcat is running on Java1.3, but trying to compile a JSP using Java1.4, which leads to problems.
What have you set your JAVA_HOME variables to?
Which version of Tools.jar did you copy to the common/lib folder?
How do you start up tomcat? Shortcut or service?
Copying Tools.jar is a bad thing to do in most cases (Yes, I know it told you to do that, but if it told you to format your harddrive would you do that too?) I would remove tools.jar, and see what happens then.
Good luck,
evnafets