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Which version of "servlet-api.jar" should I download and from where ?

Rohit Dalmia

Joined: May 20, 2008
Posts: 1
I am compiling a .java file using javac thru command prompt

Compiler throws this error,

bad class file: XXXX\servlet-api.jar (javax/servlet/http/HttpServletRequest.class)

class file has wrong version 49.0, should be 48.0

import javax.servlet.http.HttpServletRequest;

Please tell which version of this JAR should I download AND from where ?

Please reply asap. Thanks in Advance !
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 15082

Welcome to JavaRanch.

The error message that you get means that you are trying to use a JAR file which is for Java 5 and newer on JDK 1.4.

Where did you get that servlet-api.jar? Are you using Tomcat 6.0? Note that Tomcat 6.0 requires Java 5 or newer, it will not work on Java 1.4.

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Niket Shah

Joined: Nov 14, 2006
Posts: 1
HI Jesper,

I am facing the same problem. I am using the JDK version 1.6.0_10. and tomcat 6.0.16. Do you think we need to change our Servlet-api.jar file with the older version..

~ Niket Shah
Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 63852

No. Read Jesper's response.

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