Maven Commons Logging Issue dependency tree

/Users/arun/workspace/MavenJCLExclude>mvn dependency:tree
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'dependency'.
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[INFO] Building Unnamed - com.incentica:MavenJCLExclude:jar:0.0.1-SNAPSHOT
[INFO]    task-segment: [dependency:tree]
[INFO] ------------------------------------------------------------------------
[INFO] [dependency:tree {execution: default-cli}]
[INFO] com.incentica:MavenJCLExclude:jar:0.0.1-SNAPSHOT
[INFO] +- commons-logging:commons-logging:jar:1.1.1:compile
[INFO] +- commons-logging:commons-logging-api:jar:99.0-does-not-exist:compile
[INFO] +- com.amazonaws:aws-java-sdk:jar:1.1.8:compile
[INFO] |  +- commons-httpclient:commons-httpclient:jar:3.1:compile
[INFO] |  +- commons-codec:commons-codec:jar:1.3:compile
[INFO] |  +- org.codehaus.jackson:jackson-core-asl:jar:1.7.4:compile
[INFO] |  +- javax.mail:mail:jar:1.4.1:compile
[INFO] |  |  \- javax.activation:activation:jar:1.1:compile
[INFO] |  \- stax:stax-api:jar:1.0.1:compile
[INFO] +- org.slf4j:slf4j-api:jar:1.6.1:compile
[INFO] \- org.slf4j:jcl-over-slf4j:jar:1.6.1:compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
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[INFO] Total time: 1 second
[INFO] Finished at: Mon Mar 21 21:03:14 PDT 2011
[INFO] Final Memory: 17M/81M
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