How to find duplicate dependencies from pom.xml - spring-mvc

Question

How to find duplicate dependencies from pom.xml
This is my pom.xml.
I use spring-boot web application using maven.
I want to find duplicate jars and remove them.
How can I do that task? What are the duplicate jars and what is mean from afflict ID? These duplicate jars lost my project space and give errors.
<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>lk.slsi</groupId>
<artifactId>SLSIonNationalSingleWindow</artifactId>
<packaging>war</packaging>
<version>slsi-1.1.0-SNAPSHOT</version>
<name>SLSIonNationalSingleWindow Maven Webapp</name>
<url>http://maven.apache.org</url>
<scm>
<connection>scm:git:git#bitbucket.org:mof_SriLanka/SLSIonNationalSingleWindow.git</connection>
<url>scm:git:git#bitbucket.org:mof_SriLanka/SLSIonNationalSingleWindow.git</url>
<developerConnection>scm:git:git#bitbucket.org:mof_SriLanka/SLSIonNationalSingleWindow.git</developerConnection>
<tag>1.0.0</tag>
</scm>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.1.RELEASE</version>
</parent>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<sonar.exclusions>**/public/**/*</sonar.exclusions>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--<dependency>-->
<!--<groupId>org.springframework.boot</groupId>-->
<!--<artifactId>spring-boot-starter-tomcat</artifactId>-->
<!--<scope>provided</scope>-->
<!--</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-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
</dependency>
<!--handle servlet-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<!--<Email Dependency>-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
<version>1.4.3.RELEASE</version>
</dependency>
<!--Add mysql dependency-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.3</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
</dependency>
<!--jasper-->
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
<version>3.7.6</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.1</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>javax.mail-api</artifactId>
<version>1.5.5</version>
<type>jar</type>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.media/jersey-media-moxy -->
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.ext/jersey-spring3 -->
<dependency>
<groupId>org.glassfish.jersey.ext</groupId>
<artifactId>jersey-spring3</artifactId>
<version>2.25.1</version>
<exclusions>
<exclusion>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
</exclusion>
<exclusion>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-common</artifactId>
</exclusion>
<exclusion>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.ws.rs/javax.ws.rs-api -->
<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.containers/jersey-container-servlet -->
<!-- https://mvnrepository.com/artifact/org.glassfish.hk2/hk2-locator -->
<dependency>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-locator</artifactId>
<version>2.5.0-b61</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.hk2/hk2-utils -->
<dependency>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-utils</artifactId>
<version>2.5.0-b61</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.hk2/hk2-api -->
<dependency>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-api</artifactId>
<version>2.5.0-b61</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.annotation/javax.annotation-api -->
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.inject/javax.inject -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.bundles.repackaged/jersey-guava -->
<dependency>
<groupId>org.glassfish.jersey.bundles.repackaged</groupId>
<artifactId>jersey-guava</artifactId>
<version>2.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-server -->
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-common -->
</dependencies>
<build>
<finalName>SLSIonNationalSingleWindow</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<useSystemClassLoader>false</useSystemClassLoader>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-release-plugin</artifactId>
<version>2.5.2</version>
<configuration>
<tagNameFormat>#{project.version}</tagNameFormat>
<autoVersionSubmodules>true</autoVersionSubmodules>
</configuration>
</plugin>
</plugins>
</build>
</project>

Answer 1

The best solution I found so far is to use the apache enforcer plugin:
1.) Add the maven enforcer plugin to your pom.xml
<build>
<plugins>
...
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<version>1.4.1</version>
<configuration>
<rules><dependencyConvergence/></rules>
</configuration>
</plugin>
...
</plugins>
</build>
2.) Enter in your cli (project path): mvn enforcer:enforce
3.) The output will be something like this:
[WARNING] Rule 0: org.apache.maven.plugins.enforcer.DependencyConvergence failed with message:
Failed while enforcing releasability the error(s) are [
Dependency convergence error for ch.qos.logback:logback-classic:1.2.3 paths to dependency are:
+-com.stackoverflow.examples:EnforcerExample:0.0.1-SNAPSHOT
+-org.springframework.boot:spring-boot-starter-web:2.0.0.RC1
+-org.springframework.boot:spring-boot-starter:2.0.0.RC1
+-org.springframework.boot:spring-boot-starter-logging:2.0.0.RC1
+-ch.qos.logback:logback-classic:1.2.3
and
+-com.stackoverflow.examples:EnforcerExample:0.0.1-SNAPSHOT
+-ch.qos.logback:logback-classic:1.2.2
]

Answer 2

remove java mail dependency
<dependency>
<groupId>javax.mail</groupId>
<artifactId>javax.mail-api</artifactId>
<version>1.5.5</version>
<type>jar</type>
</dependency>
spring-boot-starter-mail has that dependency