java.lang.ClassNotFoundException: org.apache.commons.dbcp2.BasicDataSource in eclipse using deployment assembly -

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i have 2 projects.

  1. java se based let's abcapi.
  2. dynamic web project using tomcat server. let's abc-web

i followed tutorial automatically build , include 1 eclipse project another include abcapi abc-web. have clear separation between these two. included necessary dependencies , api's in abcapi project , believe when using deployment assembly shouldn't problem because underlying referencing project has reference it's libraries , dependencies in libs folder.

i see no error before execution. after project runs , basicdatasource called exception.

severe: servlet.service() servlet [com.trolix.abcapi.cbf.srvstart] in context path [/abc-web] threw exception [servlet execution threw exception] root cause java.lang.classnotfoundexception: org.apache.commons.dbcp2.basicdatasource     @ org.apache.catalina.loader.webappclassloader.loadclass(webappclassloader.java:1714)     @ org.apache.catalina.loader.webappclassloader.loadclass(webappclassloader.java:1559)     @ com.trolix.abcapi.dbcon.dbconnection.<init>(dbconnection.java:38)     @ com.trolix.abcapi.dbcon.dbconnection.getinstance(dbconnection.java:51)     @ com.trolix.abcapi.dao.daostart.<clinit>(daostart.java:19)     @ com.trolix.abcapi.controller.ctrlstart.<init>(ctrlstart.java:14)     @ com.trolix.abcapi.manager.mgrstart.<init>(mgrstart.java:14)     @ com.trolix.abcapi.cbf.srvstart.dopost(srvstart.java:55)     @ javax.servlet.http.httpservlet.service(httpservlet.java:647)     @ javax.servlet.http.httpservlet.service(httpservlet.java:728)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:305)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:210)     @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:222)     @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:123)     @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:502)     @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:171)     @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:99)     @ org.apache.catalina.valves.accesslogvalve.invoke(accesslogvalve.java:953)     @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:118)     @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:408)     @ org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:1023)     @ org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:589)     @ org.apache.tomcat.util.net.jioendpoint$socketprocessor.run(jioendpoint.java:312)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1145)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:615)     @ java.lang.thread.run(thread.java:745)

uptil have tried many things suggested community i.e.

  1. delete server
  2. clean server
  3. restart eclipse
  4. build code
  5. deploy again etc.

but nothing has yet worked me. please guide!


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