Ok 

On line 82 is this 

     //Load driver
     Class.forName("org.firebirdsql.jdbc.FBDriver");

And the firebird Jar files are placed in
        /virtual site/WEB-INF/lib 
-rwxrwxrwx    1 admin    site1      115509 Oct  9 09:04 firebirdjmx.jar
-rwxrwxrwx    1 admin    site1      336637 Oct  9 09:04 firebirdsql-full.jar
-rwxrwxrwx    1 admin    site1      308739 Oct  9 09:04 firebirdsql.jar
-rwxrwxrwx    1 admin    site1      133067 Oct  9 09:04 firebirdsql-test.jar
-rwxrwxrwx    1 admin    site1      104195 Oct  9 13:34 jaas.jar
-rwxrwxrwx    1 admin    site1       66624 Oct  9 13:34 log4j-core.jar
-rwxrwxrwx    1 admin    site1        6473 Oct  9 13:34 mini-concurrent.jar
-rwxrwxrwx    1 admin    site1       22200 Oct  9 13:34 mini-j2ee.jar

and I placed them in 
        /usr/java/Jakarta-tomcat/lib/

-rwxrwxr-x    1 root     root       330474 Oct 11 23:00 ant.jar
-rwxrwxr-x    1 root     root       336637 Oct 11 23:00 firebirdsql-full.jar
-rwxrwxr-x    1 root     root       308739 Oct 11 23:00 firebirdsql.jar
-rwxrwxr-x    1 root     root       104195 Oct 11 23:00 jaas.jar
-rwxrwxr-x    1 root     root       217958 Oct 11 23:00 jasper.jar
-rwxrwxr-x    1 root     root         5618 Oct 11 23:00 jaxp.jar
-rwxrwxr-x    1 root     root        66624 Oct 11 23:00 log4j-core.jar
-rwxrwxr-x    1 root     root         6473 Oct 11 23:00 mini-concurrent.jar
-rwxrwxr-x    1 root     root        22200 Oct 11 23:00 mini-j2ee.jar
drwxrwxr-x    2 root     root         4096 Oct 11 16:38 oud
-rwxrwxr-x    1 root     root       136133 Oct 11 23:00 parser.jar
-rwxrwxr-x    1 root     root        40813 Oct 11 23:00 servlet.jar
drwxrwxrwx    3 root     root           19 Aug 26 21:34 test
-rwxrwxr-x    1 root     root       431743 Oct 11 23:00 webserver.jar

is me be then the driver "name" (org.firebirdsql.jdbc.FBDriver") incorrect

thnx Richard

Hi Richard,

Your problem might be related to the driver class not available in your
classpath. You can find the exact cause by looking at 
the _0002fconnect_00033_0002ejspconnect3_jsp_20.java:82) at line no. 82.
Look at
tomcat_home/work/../localhost/yourwebapp/jsp/_0002fconnect_00033_0002ejspcon
nect3_jsp_20.java

Can you check if your dependent jar (firebirdsql-full.jar) is placed under
WEB-INF/lib folder.
Placing dependent jar files here must solve your problems.

hope it could help.
regards
SM

-----Original Message-----
From: Richard Drent (Drent IT BV) [mailto:[EMAIL PROTECTED]
Sent: Monday, October 13, 2003 10:52 AM
To: 'Tomcat Users List'
Subject: how to solve "java.lang.NoClassDefFoundError"



Can anyone tell me what this meens, and how to solve.

This error accurse when I try to connect to a firebird db, using
firebirdsql-full.jar

Root cause: 
java.lang.NoClassDefFoundError
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:120)
        at
_0002fconnect_00033_0002ejspconnect3_jsp_20._jspService(_0002fconnect_00033_
0002ejspconnect3_jsp_20.java:82)
        at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.apache.jasper.servlet.JspServlet$JspCountedServlet.service(JspServlet.ja
va:130)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
va:282)
        at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:429)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:500)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)
        at org.apache.tomcat.core.Handler.service(Handler.java:287)
        at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
        at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:81
2)
        at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:758)
        at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection
(Ajp12ConnectionHandler.java:166)
        at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
        at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:501)
        at java.lang.Thread.run(Thread.java:484) 


Greetz
 
 
Richard Drent
 





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