Oh... and I see it looks like you have the JVM's security manager turned on. Have you made any adjustments to conf/catalina.policy? What's in your logs when your webapp is started?
--David David Smith wrote: > I really doubt the database pooling is causing the issue. More likely > your deployment is doing something to remove the servlet-api.jar or > duplicating it somewhere. What do you have in tomcat's lib directory > and in your webapp's WEB-INF/lib directory? > > --David > > Lucas Vickers wrote: > >> Hello, >> I am trying to configure DB pooling in Tomcat 6. The combination of the >> elements below causes the exception: >> java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet >> >> I have followed the directions on >> http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html >> thoroughly so I am confused. The only thing I am doing a little different >> is I have placed my db resource in the conf/context.xml , but I have also >> seen the same issue when placed in my META-INF/context.xml >> >> Any ideas will be greatly appreciated! >> >> I think it's the entry in context.xml that causes the issue. >> >> ** conf/context.xml: >> >> <Resource >> name="jdbc/tabscorp_tabsdb" >> auth="Container" >> type="javax.sql.DataSource" >> maxActive="100" maxIdle="30" maxWait="10000" >> username="login" password="pass" >> driverClassName="com.mysql.jdbc.Driver" >> logAbandoned="true" removeAbandoned="true" >> removeAbandonedTimeout="60" >> url="jdbc:mysql://localhost:3306/mydb?autoReconnect=true"/> >> >> ** webapp/tabs/WEB-INF/web.xml: >> >> <resource-ref> >> <description>TABS DB Connection</description> >> <res-ref-name>jdbc/tabscorp_tabsdb</res-ref-name> >> <res-type>javax.sql.DataSource</res-type> >> <res-auth>Container</res-auth> >> </resource-ref> >> >> >> >> ** Java code: >> //use the pool >> InitialContext cxt = new InitialContext(); >> if ( cxt == null ) { >> throw new Exception("InitialContext is NULL"); >> } >> >> DataSource ds = (DataSource) cxt.lookup( >> "java:/comp/env/jdbc/tabscorp_tabsdb" ); >> if ( ds == null ) { >> throw new Exception("Data source not found"); >> } >> >> Connection conn = ds.getConnection(); >> stmt = connection.createStatement(); >> >> >> ** Full Exception: >> >> HTTP Status 500 - >> >> type Exception report >> >> message >> >> description The server encountered an internal error () that prevented it >> from fulfilling this request. >> >> exception >> >> javax.servlet.ServletException: Error allocating a servlet instance >> >> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) >> >> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) >> >> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) >> >> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) >> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) >> java.lang.Thread.run(Thread.java:619) >> >> root cause >> >> java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet >> java.lang.ClassLoader.defineClass1(Native Method) >> java.lang.ClassLoader.defineClass(ClassLoader.java:621) >> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) >> java.net.URLClassLoader.defineClass(URLClassLoader.java:260) >> java.net.URLClassLoader.access$000(URLClassLoader.java:56) >> java.net.URLClassLoader$1.run(URLClassLoader.java:195) >> java.security.AccessController.doPrivileged(Native Method) >> java.net.URLClassLoader.findClass(URLClassLoader.java:188) >> java.lang.ClassLoader.loadClass(ClassLoader.java:307) >> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) >> java.lang.ClassLoader.loadClass(ClassLoader.java:252) >> >> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302) >> >> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) >> >> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) >> >> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) >> >> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) >> >> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) >> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) >> java.lang.Thread.run(Thread.java:619) >> >> root cause >> >> java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet >> java.net.URLClassLoader$1.run(URLClassLoader.java:200) >> java.security.AccessController.doPrivileged(Native Method) >> java.net.URLClassLoader.findClass(URLClassLoader.java:188) >> java.lang.ClassLoader.loadClass(ClassLoader.java:307) >> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) >> java.lang.ClassLoader.loadClass(ClassLoader.java:252) >> java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) >> java.lang.ClassLoader.defineClass1(Native Method) >> java.lang.ClassLoader.defineClass(ClassLoader.java:621) >> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) >> java.net.URLClassLoader.defineClass(URLClassLoader.java:260) >> java.net.URLClassLoader.access$000(URLClassLoader.java:56) >> java.net.URLClassLoader$1.run(URLClassLoader.java:195) >> java.security.AccessController.doPrivileged(Native Method) >> java.net.URLClassLoader.findClass(URLClassLoader.java:188) >> java.lang.ClassLoader.loadClass(ClassLoader.java:307) >> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) >> java.lang.ClassLoader.loadClass(ClassLoader.java:252) >> >> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302) >> >> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) >> >> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) >> >> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) >> >> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) >> >> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) >> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) >> java.lang.Thread.run(Thread.java:619) >> >> note The full stack trace of the root cause is available in the Apache >> Tomcat/6.0.20 logs. >> Apache Tomcat/6.0.20 >> >> >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > -- David Smith Programmer/Analyst College of Agriculture and Life Sciences Cornell University B32 Morrison Hall Ithaca, NY 14853 Phone: (607) 255-4334 --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
