Output of mvn dependency:tree -Dverbose=true, given https://gist.github.com/4618149.

maven-inconsistent-dependency-tree.txt

[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'dependency'.
[INFO] ------------------------------------------------------------------------
[INFO] Building maven-issues-repro
[INFO]    task-segment: [dependency:tree]
[INFO] ------------------------------------------------------------------------
[INFO] [dependency:tree {execution: default-cli}]
[INFO] marnix.so:maven-issues-repro:jar:1.0-SNAPSHOT
[INFO] +- org.springframework.data:spring-data-jpa:jar:1.1.0.RELEASE:compile
[INFO] |  +- org.springframework.data:spring-data-commons-core:jar:1.3.0.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-beans:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  |  \- junit:junit-dep:jar:4.8.2:compile
[INFO] |  |     \- org.hamcrest:hamcrest-core:jar:1.1:compile
[INFO] |  +- org.springframework:spring-orm:jar:3.2.0.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-core:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- org.springframework:spring-jdbc:jar:3.2.0.RELEASE:compile
[INFO] |  |  |  +- (org.springframework:spring-core:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  |  |  +- (org.springframework:spring-tx:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  |  |  \- (org.springframework:spring-beans:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-tx:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (aopalliance:aopalliance:jar:1.0:compile - omitted for duplicate)
[INFO] |  |  \- (org.springframework:spring-beans:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  +- org.springframework:spring-tx:jar:3.2.0.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-core:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (aopalliance:aopalliance:jar:1.0:compile - omitted for duplicate)
[INFO] |  |  \- (org.springframework:spring-beans:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  +- org.springframework:spring-beans:jar:3.2.0.RELEASE:compile
[INFO] |  |  \- (org.springframework:spring-core:jar:3.2.0.RELEASE:compile - omitted for duplicate)
[INFO] |  +- org.springframework:spring-core:jar:3.2.0.RELEASE:compile
[INFO] |  +- org.slf4j:slf4j-api:jar:1.6.1:compile
[INFO] |  +- org.slf4j:jcl-over-slf4j:jar:1.6.1:runtime
[INFO] |  |  \- (org.slf4j:slf4j-api:jar:1.6.1:runtime - omitted for duplicate)
[INFO] |  \- org.aspectj:aspectjrt:jar:1.6.12:compile
[INFO] \- org.springframework:spring-web:jar:3.1.2.RELEASE:compile
[INFO]    +- aopalliance:aopalliance:jar:1.0:compile
[INFO]    +- (org.springframework:spring-beans:jar:3.1.2.RELEASE:compile - omitted for conflict with 3.2.0.RELEASE)
[INFO]    +- org.springframework:spring-context:jar:3.1.2.RELEASE:compile
[INFO]    |  +- org.springframework:spring-aop:jar:3.1.2.RELEASE:compile
[INFO]    |  |  +- (aopalliance:aopalliance:jar:1.0:compile - omitted for duplicate)
[INFO]    |  |  +- (org.springframework:spring-asm:jar:3.1.2.RELEASE:compile - omitted for duplicate)
[INFO]    |  |  +- (org.springframework:spring-beans:jar:3.1.2.RELEASE:compile - omitted for conflict with 3.2.0.RELEASE)
[INFO]    |  |  \- (org.springframework:spring-core:jar:3.1.2.RELEASE:compile - omitted for conflict with 3.2.0.RELEASE)
[INFO]    |  +- (org.springframework:spring-beans:jar:3.1.2.RELEASE:compile - omitted for conflict with 3.2.0.RELEASE)
[INFO]    |  +- (org.springframework:spring-core:jar:3.1.2.RELEASE:compile - omitted for conflict with 3.2.0.RELEASE)
[INFO]    |  +- org.springframework:spring-expression:jar:3.1.2.RELEASE:compile
[INFO]    |  |  \- (org.springframework:spring-core:jar:3.1.2.RELEASE:compile - omitted for conflict with 3.2.0.RELEASE)
[INFO]    |  \- org.springframework:spring-asm:jar:3.1.2.RELEASE:compile
[INFO]    \- (org.springframework:spring-core:jar:3.1.2.RELEASE:compile - omitted for conflict with 3.2.0.RELEASE)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 second
[INFO] Finished at: Thu Jan 24 07:47:34 CET 2013
[INFO] Final Memory: 18M/342M
[INFO] ------------------------------------------------------------------------