<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
         http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
</web-app>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>net.test</groupId>
      <artifactId>webtest</artifactId>
      <packaging>war</packaging>
      <version>1.0-SNAPSHOT</version>
      <name>webtest Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <dependencies>
        <dependency>
          <groupId>commons-dbutils</groupId>
          <artifactId>commons-dbutils</artifactId>
          <version>1.6</version>
        </dependency>
        <dependency>
          <groupId>org.apache.commons</groupId>
          <artifactId>commons-dbcp2</artifactId>
          <version>2.1.1</version>
        </dependency>
        <dependency>
          <groupId>org.postgresql</groupId>
          <artifactId>postgresql</artifactId>
          <version>9.4.1208.jre7</version>
        </dependency>
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>javax.servlet-api</artifactId>
          <version>3.1.0</version>
          <scope>provided</scope>
        </dependency>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>3.8.1</version>
          <scope>test</scope>
        </dependency>
      </dependencies>
      <build>
        <pluginManagement>
          <plugins>
            <plugin>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-compiler-plugin</artifactId>
              <version>3.5.1</version>
              <configuration>
                <source>1.7</source>
                <target>1.7</target>
              </configuration>
            </plugin>
          </plugins>
        </pluginManagement>

      </build>

    </project>

22-Jan-2017 17:13:09.669 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.listenerStop Exception sending context destroyed event to listener instance of class listener.ApplicationListener
 java.lang.NoClassDefFoundError: org/apache/commons/dbcp/BasicDataSource
    at serviceimpl.ServiceManager.buildDataSource(ServiceManager.java:50)
    at serviceimpl.ServiceManager.<init>(ServiceManager.java:31)
    at serviceimpl.ServiceManager.getInstance(ServiceManager.java:19)
    at listener.ApplicationListener.contextDestroyed(ApplicationListener.java:18)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4860)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5495)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:224)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:159)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)