Dependency trees

Dependency trees can be used in projects to locate specific dependencies. If you are wondering about any specific libraries, such as why it's used, you can check by executing a dependency tree. Also, a dependency tree can be expanded to display dependency conflicts.

The following code shows the dependency libraries and how they're organized:

mvn dependency:tree

By executing the command on your project folder (or wherever the pom.xml file is available), you can view the dependency tree, and its structure is as follows:

[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ ticket-management ---
[INFO] com.packtpub.restapp:ticket-management:jar:0.0.1-SNAPSHOT
[INFO] +- org.springframework:spring-web:jar:5.0.0.RELEASE:compile
[INFO] | +- org.springframework:spring-beans:jar:5.0.0.RELEASE:compile
[INFO] | \- org.springframework:spring-core:jar:5.0.0.RELEASE:compile
[INFO] | \- org.springframework:spring-jcl:jar:5.0.0.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.5.7.RELEASE:compile
[INFO] | +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.20:compile
[INFO] | +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.5.20:compile
[INFO] | \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.20:compile
[INFO] +- org.springframework.boot:spring-boot-starter:jar:1.5.7.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot:jar:1.5.7.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot-autoconfigure:jar:1.5.7.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot-starter-logging:jar:1.5.7.RELEASE:compile
[INFO] | | +- ch.qos.logback:logback-classic:jar:1.1.11:compile
[INFO] | | | \- ch.qos.logback:logback-core:jar:1.1.11:compile
[INFO] | | +- org.slf4j:jcl-over-slf4j:jar:1.7.25:compile
[INFO] | | +- org.slf4j:jul-to-slf4j:jar:1.7.25:compile
[INFO] | | \- org.slf4j:log4j-over-slf4j:jar:1.7.25:compile
[INFO] | \- org.yaml:snakeyaml:jar:1.17:runtime
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.9.2:compile
[INFO] | +- com.fasterxml.jackson.core:jackson-annotations:jar:2.9.0:compile
[INFO] | \- com.fasterxml.jackson.core:jackson-core:jar:2.9.2:compile
[INFO] +- org.springframework:spring-webmvc:jar:5.0.1.RELEASE:compile
[INFO] | +- org.springframework:spring-aop:jar:5.0.1.RELEASE:compile
[INFO] | +- org.springframework:spring-context:jar:5.0.1.RELEASE:compile
[INFO] | \- org.springframework:spring-expression:jar:5.0.1.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-test:jar:1.5.7.RELEASE:test
[INFO] | +- org.springframework.boot:spring-boot-test:jar:1.5.7.RELEASE:test
[INFO] | +- org.springframework.boot:spring-boot-test-autoconfigure:jar:1.5.7.RELEASE:test
[INFO] | +- com.jayway.jsonpath:json-path:jar:2.2.0:test
[INFO] | | +- net.minidev:json-smart:jar:2.2.1:test
[INFO] | | | \- net.minidev:accessors-smart:jar:1.1:test
[INFO] | | | \- org.ow2.asm:asm:jar:5.0.3:test
[INFO] | | \- org.slf4j:slf4j-api:jar:1.7.16:compile
[INFO] | +- junit:junit:jar:4.12:test
[INFO] | +- org.assertj:assertj-core:jar:2.6.0:test
[INFO] | +- org.mockito:mockito-core:jar:1.10.19:test
[INFO] | | \- org.objenesis:objenesis:jar:2.1:test
[INFO] | +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO] | +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO] | +- org.skyscreamer:jsonassert:jar:1.4.0:test
[INFO] | | \- com.vaadin.external.google:android-json:jar:0.0.20131108.vaadin1:test
[INFO] | \- org.springframework:spring-test:jar:4.3.11.RELEASE:test
[INFO] +- io.jsonwebtoken:jjwt:jar:0.6.0:compile
[INFO] \- org.springframework.boot:spring-boot-starter-aop:jar:1.5.7.RELEASE:compile
[INFO] \- org.aspectj:aspectjweaver:jar:1.8.10:compile