java.lang.NoClassDefFoundError: org/apache/commons/codec/binary/Base64

[Farakh khan]

Hello,

I have dedicated server with RHE

When its running the program then its throwing the following error:

javax.servlet.ServletException: Servlet execution threw an exception

root cause

java.lang.NoClassDefFoundError: org/apache/commons/codec/binary/Base64
	UploadManager.doPost(UploadManager.java:202)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

What I did is:

1) I placed base64coder.jar in /WEB-INF/lib
2) I also copies the file to jdk/jre/lib/ext
3) I un-jar and made folder org/apache/commons/codec/binary/Base64/Base64Coder.class in /WEB-INF/classes

Nothing worked so far. Please help me

Thanks & best regards

[Bear Bibeault]

(1) Is all you need to do.

If that's not working then either: (a) the class isn;t in the jar file, or (b) your web app is structured incorrectly such that the lib folder isn't getting loaded.

I have dedicated server with RHE

I have no idea what this means.

[Farakh khan]

I un-jar and class exist
How can I check that lib folder is loaded or not?

thanks for replying

[Farakh khan]

This is Tomcat log

Sep 22, 2011 7:26:49 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet UploadManager threw exception
java.lang.ClassNotFoundException: org.apache.commons.codec.binary.Base64
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
	at UploadManager.doPost(UploadManager.java:202)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
	at java.lang.Thread.run(Thread.java:619)

[Tim Moores]

What is "base64coder.jar"? It sure doesn't sound like the name of an Apache Commons jar file (which would be something like commons-codec-1.5.jar).

org/apache/commons/codec/binary/Base64/Base64Coder.class

The Commons Codec library has no such class - what is that supposed to be?

[Farakh khan]

Tim Moores wrote:What is "base64coder.jar"? It sure doesn't sound like the name of an Apache Commons jar file (which would be something like commons-codec-1.5.jar).

Dear Bear Bibeault & Tim Moores,

Thanks from the bottom of my heart.

You are right Tim Moores.
The problem was jar file. When I checked the unjar package then this was biz_source_code_Base64 package instead of org.apache.....

Problem fixed

Best regards