Develop Reference

HTTP Status 500 For Apache Tomcat/6.0.18 on Centos 6.3

I have installed Apache Tomcat/6.0.18 on my centos 6.3. While opening centos server from remote machine I get following error.
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 1 in the generated java file
The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:423)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:317)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:282)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.
My CATALINA_HOME and other variables are set properly.

Tomcat home page showing error

I can't open my tomcat server home page it is showing the following error:
HTTP Status 500 -
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:
An error occurred at line: 1 in the generated java file
The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:331)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:457)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.23 logs.
Apache Tomcat/7.0.23

This is caused by a compatibility problem because you are using different Java versions. Likely you are using Java8 only as:
JRE for your Tomcat OR
compiling your code
Make a decision on which Java version would you like to use and ensure that your environment is consistently uses that specific version.

Unable to compile class for JSP using Netbeans [duplicate]

This question already has answers here:
The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
(4 answers)
Closed 8 years ago.
I'm getting the following error while I try to run my project in Netbeans. I have used JSP, Struts and JS in my project. So plz help me out.
Error Log:
type Exception report
message Unable to compile class for JSP:
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:
An error occurred at line: [33] in the generated java file: [C:\Users\mahesh\AppData\Roaming\NetBeans\7.4\apache-tomcat-7.0.41.0_base\work\Catalina\localhost\mypro\org\apache\jsp\index_jsp.java]
The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:103)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:366)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:468)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)

Remove the servletcontainer-specific libraries such as jsp-api.jar in your /WEB-INF/lib folder. These libraries supports older versions and the method was introduced in newer version(Servlet 2.5). Those libraries don't belong in the webapp's classpath.

Java 8 error: HTTP Status 500 - Unable to compile class for JSP

I have installed java 8 and removed previously installed java 7 and its folders, and also re-installed Apache Tomcat 7 with security options, I did all the environment variables settings and my tomcat 7 started with no problem, but when I tried to open the localhost http://localhost:8080 then i am getting the following error.
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 1 in the generated java file
The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:331)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:469)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
The error have a some description: The server encountered an internal error that prevented it from fulfilling this request.
It seems i did nothing wrong, but are there an issues with Java 8 and Apache Tomcat 7.

JSP compilation error For IBM JDK 1.5 Servlet version 2.5 [duplicate]

This question already has answers here:
The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
(4 answers)
Closed 6 years ago.
I'm using IBM JDK and Eclipse Hellos. When I'm devloping simple web project, I'm getting error in compilation of jsp page. If I change my JDK to normal Sun JDK, then every thing's working fine. But I have to use IBM jdk as production environment; I have to use web sphere.
The error I'm getting is this:
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 22 in the generated Java file
The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
Can anyone tell me what I have to do?

The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory - this means that JspFactory on the classpath does not have the desired method. The method is available since version 2.1 of the servlet api, so make sure you don't have any servlet-api, jsp-api or el-api in WEB-INF/lib, and that your WebSphere supports Servlet 2.1.