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retreiving String array from servlet

 
Sanjay Izardar
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Posts: 19
posted 13 years ago
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i have a servlet file

1) BeanTest.java



and a jsp file

2) result2.jsp



i put the files in the following locations
1)BeanTest.class(webapps\myApp\WEB-INF\classes)
2)result2.jsp(webapps\myApp)
3)jstl.jar(webapps\myApp\WEB-INF\lib)
4)standard.jar(webapps\myApp\WEB-INF\lib)

and i am using jsp2.0 servlet 2.4 and tomcat 5.5

by running the files i am getting this error
exception

javax.servlet.ServletException: javax/el/ValueExpression
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:272)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
BeanTest.doPost(BeanTest.java:13)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

java.lang.NoClassDefFoundError: javax/el/ValueExpression
java.lang.Class.getDeclaredMethods0(Native Method)
java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
java.lang.Class.getDeclaredMethods(Class.java:1791)
.
.
.

how to solve this?
 
Seetharaman Venkatasamy
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posted 13 years ago
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I think you are using jstl1.1 and search the jar which has javax/el/ValueExpression ;add it to the classpath. probably you need to add el-api.jar
 
Sanjay Izardar
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posted 13 years ago
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thanks Seetharaman,
yes i am using jstl 1.1.
i added el-api.jar in lib folder, but now i'm getting this error.

exception

org.apache.jasper.JasperException: javax.servlet.jsp.PageContext.getELContext()Ljavax/el/ELContext;
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
BeanTest.doPost(BeanTest.java:13)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root cause

javax.servlet.ServletException: javax.servlet.jsp.PageContext.getELContext()Ljavax/el/ELContext;
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:858)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
org.apache.jsp.result2_jsp._jspService(result2_jsp.java:69)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
BeanTest.doPost(BeanTest.java:13)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root cause

java.lang.NoSuchMethodError: javax.servlet.jsp.PageContext.getELContext()Ljavax/el/ELContext;
javax.servlet.jsp.jstl.core.LoopTagSupport.unExposeVariables(LoopTagSupport.java:620)
javax.servlet.jsp.jstl.core.LoopTagSupport.doFinally(LoopTagSupport.java:354)
org.apache.jsp.result2_jsp._jspx_meth_c_forEach_0(result2_jsp.java:109)
....

how can i get rid of from this problem.
 
Seetharaman Venkatasamy
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posted 13 years ago
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[not sure]might be wrong version of el-api.jar
 
Mike Zal
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posted 13 years ago
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Is there anything in standard.jar that might cause a conflict with jstl.jar?

OCJP6, OCWCD5

 
Bear Bibeault
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posted 13 years ago
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You're all barking up the wrong tree.

The javax.el package has nothing whatsoever to do with the JSTL -- it's part of the EL, which is part of JSP.

The javadoc for this class shows that it was added with JSP 2.1.

So the question is, if you are using Tomcat 5, which supports JSP 2.0, how is something trying to reference a JSP 2.1 class which will exist only in Tomcat 6?

The answer:

i added el-api.jar in lib folder, but now i'm getting this error.



In other words, you have completely screwed up JSP and your Tomcat installation by copying jars that you should not be mucking around with. Remove that jar and start over. All you're doing is making a bigger mess.

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