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problem with tomcat when i am connection with db2 database

 
Greenhorn
Posts: 4
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Hi All,

I got a problem with tomcat configuration when i am working with db2 database. Same applications are working when i am not using db2.

I am using type2 driver of db2(db2java.zip(or)db2java.jar)

i got error like classnotfound exception..

my stack trace is as follows...

org.hibernate.HibernateException: JDBC Driver class not found: COM.ibm.db2.jdbc.app.DB2Driver
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:66)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:80)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:362)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:60)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1463)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1004)
at com.srit.hibernate.SessionFactoryUtil.<clinit>(SessionFactoryUtil.java:16)
at com.srit.bo.EmployeeManager.getEmployeeDetails(EmployeeManager.java:123)
at com.srit.bean.EmployeeBean.getEmployeeDetails(EmployeeBean.java:31)
at com.srit.bean.EmployeeBean.<init>(EmployeeBean.java:19)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.apache.myfaces.shared_impl.util.ClassUtils.newInstance(ClassUtils.java:274)
at org.apache.myfaces.shared_impl.util.ClassUtils.newInstance(ClassUtils.java:265)
at org.apache.myfaces.config.ManagedBeanBuilder.buildManagedBean(ManagedBeanBuilder.java:50)
at org.apache.myfaces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:311)
at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42)
at org.apache.myfaces.el.ValueBindingImpl$ELVariableResolver.resolveVariable(ValueBindingImpl.java:574)
at org.apache.commons.el.NamedValue.evaluate(NamedValue.java:124)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:140)
at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:383)
at javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:1075)
at org.apache.myfaces.custom.tabbedpane.HtmlPanelTab.isRendered(HtmlPanelTab.java:88)
at org.apache.myfaces.custom.tabbedpane.HtmlTabbedPaneRenderer.encodeEnd(HtmlTabbedPaneRenderer.java:123)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:442)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:440)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:440)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBase.renderChildren(HtmlGridRendererBase.java:216)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBase.encodeEnd(HtmlGridRendererBase.java:98)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536)
at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:495)
at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:363)
at org.apache.myfaces.shared_tomahawk.taglib.UIComponentBodyTagBase.doEndTag(UIComponentBodyTagBase.java:54)
at org.apache.jsp.index_jsp._jspx_meth_t_panelGrid_0(org.apache.jsp.index_jsp:281)
at org.apache.jsp.index_jsp._jspx_meth_h_form_0(org.apache.jsp.index_jsp:223)
at org.apache.jsp.index_jsp._jspx_meth_f_view_0(org.apache.jsp.index_jsp:193)
at org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:140)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416)
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:229)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:234)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:97)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:96)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:220)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: COM.ibm.db2.jdbc.app.DB2Driver
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:108)
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:61)
... 88 more
java.lang.NullPointerException
at com.srit.hibernate.SessionFactoryUtil.createSession(SessionFactoryUtil.java:33)
at com.srit.bo.EmployeeManager.getEmployeeDetails(EmployeeManager.java:123)
at com.srit.bean.EmployeeBean.getEmployeeDetails(EmployeeBean.java:31)
at com.srit.bean.EmployeeBean.<init>(EmployeeBean.java:19)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.apache.myfaces.shared_impl.util.ClassUtils.newInstance(ClassUtils.java:274)
at org.apache.myfaces.shared_impl.util.ClassUtils.newInstance(ClassUtils.java:265)
at org.apache.myfaces.config.ManagedBeanBuilder.buildManagedBean(ManagedBeanBuilder.java:50)
at org.apache.myfaces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:311)
at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42)
at org.apache.myfaces.el.ValueBindingImpl$ELVariableResolver.resolveVariable(ValueBindingImpl.java:574)
at org.apache.commons.el.NamedValue.evaluate(NamedValue.java:124)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:140)
at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:383)
at javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:1075)
at org.apache.myfaces.custom.tabbedpane.HtmlPanelTab.isRendered(HtmlPanelTab.java:88)
at org.apache.myfaces.custom.tabbedpane.HtmlTabbedPaneRenderer.encodeEnd(HtmlTabbedPaneRenderer.java:123)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:442)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:440)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:440)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBase.renderChildren(HtmlGridRendererBase.java:216)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBase.encodeEnd(HtmlGridRendererBase.java:98)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536)
at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:495)
at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:363)
at org.apache.myfaces.shared_tomahawk.taglib.UIComponentBodyTagBase.doEndTag(UIComponentBodyTagBase.java:54)
at org.apache.jsp.index_jsp._jspx_meth_t_panelGrid_0(org.apache.jsp.index_jsp:281)
at org.apache.jsp.index_jsp._jspx_meth_h_form_0(org.apache.jsp.index_jsp:223)
at org.apache.jsp.index_jsp._jspx_meth_f_view_0(org.apache.jsp.index_jsp:193)
at org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:140)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416)
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:229)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:234)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:97)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:96)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:220)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)



Please can anybody help me in this regard....

Thank you..
 
Java Cowboy
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org.hibernate.HibernateException: JDBC Driver class not found: COM.ibm.db2.jdbc.app.DB2Driver

It looks like you specified the JDBC driver class name wrong. I bet it starts with "com" (lower case) instead of "COM". Java is case-sensitive. Check your configuration files.
 
Jesper de Jong
Java Cowboy
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Ok, it's strange, but COM.ibm.db2.jdbc.app.DB2Driver is actually the correct classname.

The error message means that Java cannot find the JDBC driver class. It happens because you did not put the driver class in the correct place. Put the JAR file for the JDBC driver in the WEB-INF/lib directory of your application, or in the lib directory of Tomcat.
 
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