Hi
Iam using Tomcat4.0 on Win2K . My web appliation that was connecting
to DB2 was working fine on Tomcat3.2. I am using JDK1.3.1 to compile my
application. But when I port the application to run under Tomcat4.0 the
section of my code that loads the DB2 driver fails and causes Tomcat4.0 to
crash. From the stack trace I identified that the code is failing at line 79
of my class and that line is where I am loading the driver by calling
Class.forName(). Here is the code snippet followed by the stack trace -
Code Snippet-
-------------------------------------------------------
String driverClass = "COM.ibm.db2.jdbc.app.DB2Driver";
Class.forName(driverClass);
con =
DriverManager.getConnection("jdbc:db2:DB2DT10","idb4459","dbusr55");
//--------------------SECTION FOR TOMCAT -----------------
------------------------------------------------------
Stack Trace :
java.lang.NoSuchFieldError: numBytesRead
at COM.ibm.db2.jdbc.app.DB2Driver.SQLAllocEnv(Native Method)
at COM.ibm.db2.jdbc.app.DB2Driver.(DB2Driver.java:234)
at COM.ibm.db2.jdbc.app.DB2Driver.(DB2Driver.java:119)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at
com.boeing.pron.beans.PronCommunicator.sendRequest(PronCommunicator.java:79)
at
com.boeing.pron.beans.PronCommunicator.ping(PronCommunicator.java:365)
at
com.boeing.pron.servlets.PingServlet.handleApplicationEvent(PingServlet.java
:36)
at com.boeing.pron.servlets.PronServlet.service(PronServlet.java:88)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
at
org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java
:439)
at
org.apache.catalina.servlets.InvokerServlet.doPost(InvokerServlet.java:216)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:1145)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:215)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
.java:472)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
46)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2366)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:163)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:
1005)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1098
)
at java.lang.Thread.run(Thread.java:484)
thanks
Srinivas
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