java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.isAsyncStarted()Z in Wicket Web Hello World Project - tomcat7

Question

I'm writing Wicket Framework Hello World application 1st time using Maven build. In Eclipse I've created Maven project. Build is getting successful.
But while running , it is throwing "java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.isAsyncStarted()Z".
pom.xml
<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>com.practice.wicket</groupId>
<artifactId>WicketFirst</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<!-- TODO project name -->
<name>quickstart</name>
<description></description>
<!--
<organization>
<name>company name</name>
<url>company url</url>
</organization>
-->
<licenses>
<license>
<name>The Apache Software License, Version 2.0</name>
<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
<distribution>repo</distribution>
</license>
</licenses>
<properties>
<wicket.version>8.5.0</wicket.version>
<jetty9.version>9.4.18.v20190429</jetty9.version>
<slf4j.version>1.7.26</slf4j.version>
<junit.version>4.12</junit.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- allowed values: R7, 1.0, 1.5, 2.0 or none -->
<wtp.version>none</wtp.version>
</properties>
<dependencies>
<!-- WICKET DEPENDENCIES -->
<dependency>
<groupId>org.apache.wicket</groupId>
<artifactId>wicket-core</artifactId>
<version>${wicket.version}</version>
</dependency>
<!-- OPTIONAL DEPENDENCY
<dependency>
<groupId>org.apache.wicket</groupId>
<artifactId>wicket-extensions</artifactId>
<version>${wicket.version}</version>
</dependency>
-->
<!-- LOGGING DEPENDENCIES - SLF4J-SIMPLE -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- JUNIT DEPENDENCY FOR TESTING -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- JETTY DEPENDENCIES FOR TESTING -->
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-webapp</artifactId>
<scope>test</scope>
<version>${jetty9.version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-jmx</artifactId>
<version>${jetty9.version}</version>
<scope>test</scope>
</dependency>
<!-- uncomment if WebSocket support is needed
<dependency>
<groupId>org.eclipse.jetty.websocket</groupId>
<artifactId>javax-websocket-server-impl</artifactId>
<version>${jetty9.version}</version>
<scope>test</scope>
</dependency>
-->
</dependencies>
<build>
<resources>
<resource>
<filtering>false</filtering>
<directory>src/main/resources</directory>
</resource>
<resource>
<filtering>false</filtering>
<directory>src/main/java</directory>
<includes>
<include>**</include>
</includes>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
</resources>
<testResources>
<testResource>
<filtering>false</filtering>
<directory>src/test/resources</directory>
</testResource>
<testResource>
<filtering>false</filtering>
<directory>src/test/java</directory>
<includes>
<include>**</include>
</includes>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</testResource>
</testResources>
<plugins>
<plugin>
<inherited>true</inherited>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.0</version>
<configuration>
<url>http://localhost:8080</url>
</configuration>
</plugin>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>${jetty9.version}</version>
<configuration>
<systemProperties>
<systemProperty>
<name>maven.project.build.directory.test-classes</name>
<value>${project.build.directory}/test-classes</value>
</systemProperty>
</systemProperties>
<jettyXml>${project.basedir}/src/test/jetty/jetty.xml,${project.basedir}/src/test/jetty/jetty-ssl.xml,${project.basedir}/src/test/jetty/jetty-http.xml,${project.basedir}/src/test/jetty/jetty-https.xml</jettyXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.10</version>
<configuration>
<downloadSources>true</downloadSources>
<wtpversion>${wtp.version}</wtpversion>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>Apache Nexus</id>
<url>https://repository.apache.org/content/repositories/snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
</project>
web.xml:
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://www.oracle.com/webfolder/technetwork/jsc/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>WicketFirst</display-name>
<filter>
<filter-name>wicket.WicketFirst</filter-name>
<filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
<init-param>
<param-name>applicationClassName</param-name>
<param-value>com.practice.wicket.WicketApplication</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>wicket.WicketFirst</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
Project Structure:
WicketFirst
/src/main/java/
com.practice.wicket
WicketApplication.java
I have not put tomcat 7 .jar in libs. I've used plugin for this in pom.xml and ran mvn package and mvn install from command prompt.
It has build successfully but when I run it using Maven in Eclipse and try to open http://localhost:8080/WicketFirst , it throws above mentioned error.

Answer 1

Tomcat 7 supports Servlet API 3.0. For Wicket 8 you need to use a container which supports at least Servlet API 3.1, which would be Tomcat 8 or higher.
See also: http://tomcat.apache.org/whichversion.html