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unable to run Htmlunit application using Maven dependency

I have added Htmlunit Maven dependency by adding the following to my pom.xml

<dependency>
    <groupId>net.sourceforge.htmlunit</groupId>
    <artifactId>htmlunit</artifactId>
    <version>2.18</version>
</dependency>

When I am trying to run the application, I am getting the following error:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/http/conn/ssl/NoopHostnameVerifier
    at com.gargoylesoftware.htmlunit.httpclient.HtmlUnitSSLConnectionSocketFactory.buildSSLSocketFactory(HtmlUnitSSLConnectionSocketFactory.java:112)
    at com.gargoylesoftware.htmlunit.HttpWebConnection.configureHttpsScheme(HttpWebConnection.java:597)
    at com.gargoylesoftware.htmlunit.HttpWebConnection.createHttpClient(HttpWebConnection.java:532)
    at com.gargoylesoftware.htmlunit.HttpWebConnection.getHttpClientBuilder(HttpWebConnection.java:494)
    at com.gargoylesoftware.htmlunit.HttpWebConnection.getResponse(HttpWebConnection.java:158)
    at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseFromWebConnection(WebClient.java:1321)
    at com.gargoylesoftware.htmlunit.WebClient.loadWebResponse(WebClient.java:1238)
    at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:346)
    at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:415)
    at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:400)

The following is my pom.xml, as my pom.xml is very lengthy I have removed some of the sections like properties, profiles, etc. 

<dependencies>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>apache-log4j-extras</artifactId>
        <version>1.2.17</version>
    </dependency>

    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-core</artifactId>
    </dependency>
    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-annotation</artifactId>
        <version>${dropwizard-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-ehcache</artifactId>
        <version>${dropwizard-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-graphite</artifactId>
    </dependency>
    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-healthchecks</artifactId>
        <version>${dropwizard-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-json</artifactId>
        <version>${dropwizard-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-jvm</artifactId>
        <version>${dropwizard-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-servlet</artifactId>
        <version>${dropwizard-metrics.version}</version>
    </dependency>
    <dependency>
        <groupId>io.dropwizard.metrics</groupId>
        <artifactId>metrics-servlets</artifactId>
        <exclusions>
            <exclusion>
                <artifactId>metrics-healthchecks</artifactId>
                <groupId>io.dropwizard.metrics</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-hibernate4</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-hppc</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-joda</artifactId>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-json-org</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.jayway.awaitility</groupId>
        <artifactId>awaitility</artifactId>
        <version>${awaitility.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.jayway.jsonpath</groupId>
        <artifactId>json-path</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>${springfox.version}</version>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <version>${springfox.version}</version>
        <exclusions>
            <exclusion>
                <groupId>org.mapstruct</groupId>
                <artifactId>mapstruct</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>com.mattbertolini</groupId>
        <artifactId>liquibase-slf4j</artifactId>
        <version>${liquibase-slf4j.version}</version>
    </dependency>
    <dependency>
        <groupId>com.ryantenney.metrics</groupId>
        <artifactId>metrics-spring</artifactId>
        <version>${metrics-spring.version}</version>
        <exclusions>
            <exclusion>
                <groupId>com.codahale.metrics</groupId>
                <artifactId>metrics-annotation</artifactId>
            </exclusion>
            <exclusion>
                <groupId>com.codahale.metrics</groupId>
                <artifactId>metrics-core</artifactId>
            </exclusion>
            <exclusion>
                <groupId>com.codahale.metrics</groupId>
                <artifactId>metrics-healthchecks</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>com.zaxxer</groupId>
        <artifactId>HikariCP</artifactId>
        <exclusions>
            <exclusion>
                <artifactId>tools</artifactId>
                <groupId>com.sun</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <!-- The HikariCP Java Agent is disabled by default, as it is experimental 
        <dependency> <groupId>com.zaxxer</groupId> <artifactId>HikariCP-agent</artifactId> 
        <version>${HikariCP.version}</version> </dependency> -->
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>${commons-io.version}</version>
    </dependency>
    <dependency>
        <groupId>commons-lang</groupId>
        <artifactId>commons-lang</artifactId>
        <version>${commons-lang.version}</version>
    </dependency>
    <dependency>
        <groupId>io.gatling.highcharts</groupId>
        <artifactId>gatling-charts-highcharts</artifactId>
        <version>${gatling.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>${javax.inject.version}</version>
    </dependency>
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
    </dependency>
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time-hibernate</artifactId>
        <version>${joda-time-hibernate.version}</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <dependency>
        <groupId>org.assertj</groupId>
        <artifactId>assertj-core</artifactId>
        <version>${assertj-core.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-ehcache</artifactId>
        <exclusions>
            <exclusion>
                <groupId>net.sf.ehcache</groupId>
                <artifactId>ehcache-core</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-envers</artifactId>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.jadira.usertype</groupId>
        <artifactId>usertype.core</artifactId>
        <version>${usertype-core.version}</version>
    </dependency>
    <dependency>
        <groupId>org.liquibase</groupId>
        <artifactId>liquibase-core</artifactId>
        <exclusions>
            <exclusion>
                <artifactId>jetty-servlet</artifactId>
                <groupId>org.eclipse.jetty</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.mapstruct</groupId>
        <artifactId>mapstruct-jdk8</artifactId>
        <version>${mapstruct.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-actuator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-autoconfigure</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-loader-tools</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-aop</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-logging</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <!-- Spring Cloud -->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-cloudfoundry-connector</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-spring-service-connector</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-localconfig-connector</artifactId>
    </dependency>
    <!-- security -->
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-data</artifactId>
    </dependency>
    <!-- reporting -->
    <dependency>
        <groupId>fr.ippon.spark.metrics</groupId>
        <artifactId>metrics-spark-reporter</artifactId>
        <version>${metrics-spark-reporter.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.activemq</groupId>
        <artifactId>activemq-all</artifactId>
        <version>5.12.0</version>
    </dependency>
    <dependency>
        <groupId>org.json</groupId>
        <artifactId>json</artifactId>
        <version>20141113</version>
    </dependency>
    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi</artifactId>
        <version>3.12</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>3.12</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>ooxml-schemas</artifactId>
        <version>1.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-dbcp2</artifactId>
    </dependency>
    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>javax.mail-api</artifactId>
    </dependency>
    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
    </dependency>
    <dependency>
        <groupId>com.healthmarketscience.jackcess</groupId>
        <artifactId>jackcess</artifactId>
        <version>2.1.2</version>
    </dependency>
    <dependency>
        <groupId>commons-beanutils</groupId>
        <artifactId>commons-beanutils</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-exec</artifactId>
        <version>1.3</version>
    </dependency>
    <dependency>
        <groupId>commons-net</groupId>
        <artifactId>commons-net</artifactId>
        <version>3.3</version>
    </dependency>
    <dependency>
        <groupId>org.codehaus.castor</groupId>
        <artifactId>castor</artifactId>
        <version>1.3.3</version>
        <type>pom</type>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-collections4</artifactId>
        <version>4.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-digester3</artifactId>
        <version>3.2</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
    </dependency>
    <dependency>
        <groupId>jakarta-regexp</groupId>
        <artifactId>jakarta-regexp</artifactId>
        <version>1.4</version>
    </dependency>
    <dependency>
        <groupId>net.sf.jasperreports</groupId>
        <artifactId>jasperreports</artifactId>
        <version>6.1.1</version>
    </dependency>
    <dependency>
        <groupId>org.eclipse.jdt.core.compiler</groupId>
        <artifactId>ecj</artifactId>
        <version>4.4.2</version>
    </dependency>
    <dependency>
        <groupId>net.sf.jasperreports</groupId>
        <artifactId>jasperreports-fonts</artifactId>
        <version>6.0.0</version>
    </dependency>
    <dependency>
        <groupId>org.olap4j</groupId>
        <artifactId>olap4j-xmla</artifactId>
        <version>1.2.0</version>
    </dependency>
    <dependency>
        <groupId>net.sf.jcommon</groupId>
        <artifactId>jcommon</artifactId>
        <version>1.3.1</version>
    </dependency>
    <dependency>
        <groupId>org.jfree</groupId>
        <artifactId>jfreechart</artifactId>
        <version>1.0.19</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-core</artifactId>
        <version>5.3.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-analyzers-common</artifactId>
        <version>5.3.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-queries</artifactId>
        <version>5.3.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-queryparser</artifactId>
        <version>5.3.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-sandbox</artifactId>
        <version>5.3.0</version>
    </dependency>
    <dependency>
        <groupId>xml-apis</groupId>
        <artifactId>xml-apis</artifactId>
        <version>1.4.01</version>
    </dependency>
    <dependency>
        <groupId>commons-vfs</groupId>
        <artifactId>commons-vfs</artifactId>
        <version>1.0</version>
    </dependency>
    <dependency>
        <groupId>commons-httpclient</groupId>
        <artifactId>commons-httpclient</artifactId>
        <version>3.1</version>
    </dependency>
    <dependency>
        <groupId>jsch</groupId>
        <artifactId>jsch</artifactId>
        <version>0.1.29</version>
    </dependency>
    <dependency>
        <groupId>org.apache.xmlbeans</groupId>
        <artifactId>xmlbeans</artifactId>
        <version>2.4.0</version>
    </dependency>
    <dependency>
        <groupId>dom4j</groupId>
        <artifactId>dom4j</artifactId>
        <version>1.6.1</version>
    </dependency>
    <dependency>
        <groupId>com.lowagie</groupId>
        <artifactId>itext</artifactId>
        <version>2.1.7</version>
    </dependency>
    <dependency>
        <groupId>org.hamcrest</groupId>
        <artifactId>hamcrest-core</artifactId>
    </dependency>
    <dependency>
        <groupId>commons-codec</groupId>
        <artifactId>commons-codec</artifactId>
        <version>1.2</version>
    </dependency>
    <dependency>
        <groupId>ar.com.fdvs</groupId>
        <artifactId>DynamicJasper</artifactId>
        <version>3.0.13</version>
    </dependency>
    <dependency>
        <groupId>net.sourceforge.dynamicreports</groupId>
        <artifactId>dynamicreports-core</artifactId>
        <version>4.0.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>3.0.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.tika</groupId>
        <artifactId>tika-parsers</artifactId>
        <version>1.5</version>
    </dependency>
    <dependency>
        <groupId>com.aspose</groupId>
        <artifactId>aspose-cells</artifactId>
        <version>8.2.1</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>itextpdf</artifactId>
        <version>5.3.4</version>
    </dependency>
    <dependency>
        <groupId>net.sourceforge.htmlunit</groupId>
        <artifactId>htmlunit</artifactId>
        <version>2.18</version>
    </dependency>
</dependencies>

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Answer

You need to remove the direct HttpClient dependency, because it is already referenced by HtmlUnit by a newer version.

    <dependency>
        <groupId>commons-httpclient</groupId>
        <artifactId>commons-httpclient</artifactId>
        <version>3.1</version>
    </dependency>

You can see the used versions in eclipse:

POM dependencies

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