Hi there,

We have maven projects, it works when using mvn 
version:display-dependency-updates, but failed when we try to do "mvn 
version:dependency-updates-report".  It will be highly appreciated if some one 
give us any suggestions on it.

Thanks in advance.

Jing

[INFO] --- versions-maven-plugin:2.0:dependency-updates-report (default-cli) @ 
common ---
mojoFailed org.codehaus.mojo:versions-maven-plugin:2.0(default-cli)
projectFailed com.roche.sequencing:common:1.0
sessionEnded
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Roche Sequencing Common ........................... FAILURE [29.324s]
[INFO] Roche Sequencing Sequencer ........................ SKIPPED
[INFO] Roche Sequencing Sequencer Web Service ............ SKIPPED
[INFO] Roche Sequencer Simulator ......................... SKIPPED
[INFO] Roche Sequencing Apps ............................. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 33.493s
[INFO] Finished at: Wed Mar 20 00:02:20 EDT 2013
[INFO] Final Memory: 19M/168M
[INFO] ------------------------------------------------------------------------
Projects to build: [MavenProject: com.roche.sequencing:common:1.0 @ 
/var/lib/jenkins/jobs/ISFET Application and Services, Version 
Report/workspace/sequencing/common/pom.xml, MavenProject: 
com.roche.sequencing:sequencer:1.0 @ /var/lib/jenkins/jobs/ISFET Application 
and Services, Version Report/workspace/sequencing/sequencer/pom.xml, 
MavenProject: com.roche.sequencing:sequencerWebService:1.0 @ 
/var/lib/jenkins/jobs/ISFET Application and Services, Version 
Report/workspace/sequencing/sequencerWebService/pom.xml, MavenProject: 
com.roche.sequencing:sequencerSimulator:1.0 @ /var/lib/jenkins/jobs/ISFET 
Application and Services, Version 
Report/workspace/sequencing/sequencerSimulator/pom.xml, MavenProject: 
com.roche.sequencing:sequencing:1.0 @ /var/lib/jenkins/jobs/ISFET Application 
and Services, Version Report/workspace/sequencing/build/pom.xml]
[JENKINS] Archiving /var/lib/jenkins/jobs/ISFET Application and Services, 
Version Report/workspace/sequencing/sequencerWebService/pom.xml to 
/var/lib/jenkins/jobs/ISFET Application and Services, Version 
Report/modules/com.roche.sequencing$sequencerWebService/builds/2013-03-20_00-01-42/archive/com.roche.sequencing/sequencerWebService/1.0/sequencerWebService-1.0.pom
[JENKINS] Archiving /var/lib/jenkins/jobs/ISFET Application and Services, 
Version Report/workspace/sequencing/sequencerSimulator/pom.xml to 
/var/lib/jenkins/jobs/ISFET Application and Services, Version 
Report/modules/com.roche.sequencing$sequencerSimulator/builds/2013-03-20_00-01-42/archive/com.roche.sequencing/sequencerSimulator/1.0/sequencerSimulator-1.0.pom
[JENKINS] Archiving /var/lib/jenkins/jobs/ISFET Application and Services, 
Version Report/workspace/sequencing/common/pom.xml to 
/var/lib/jenkins/jobs/ISFET Application and Services, Version 
Report/modules/com.roche.sequencing$common/builds/2013-03-20_00-01-42/archive/com.roche.sequencing/common/1.0/common-1.0.pom
[JENKINS] Archiving /var/lib/jenkins/jobs/ISFET Application and Services, 
Version Report/workspace/sequencing/sequencer/pom.xml to 
/var/lib/jenkins/jobs/ISFET Application and Services, Version 
Report/modules/com.roche.sequencing$sequencer/builds/2013-03-20_00-01-42/archive/com.roche.sequencing/sequencer/1.0/sequencer-1.0.pom
[JENKINS] Archiving /var/lib/jenkins/jobs/ISFET Application and Services, 
Version Report/workspace/sequencing/build/pom.xml to 
/var/lib/jenkins/jobs/ISFET Application and Services, Version 
Report/modules/com.roche.sequencing$sequencing/builds/2013-03-20_00-01-42/archive/com.roche.sequencing/sequencing/1.0/sequencing-1.0.pom
mavenExecutionResult exceptions not empty
message : Failed to execute goal 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report 
(default-cli) on project common: Execution default-cli of goal 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report failed: A 
required class was missing while executing 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report: 
org/apache/maven/doxia/module/xhtml/decoration/render/RenderingContext
-----------------------------------------------------
realm =    plugin>org.codehaus.mojo:versions-maven-plugin:2.0
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/mojo/versions-maven-plugin/2.0/versions-maven-plugin-2.0.jar
urls[1] = 
file:/var/lib/jenkins/.m2/repository/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar
urls[2] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-jdk14/1.5.6/slf4j-jdk14-1.5.6.jar
urls[3] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-api/1.5.6/slf4j-api-1.5.6.jar
urls[4] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/jcl-over-slf4j/1.5.6/jcl-over-slf4j-1.5.6.jar
urls[5] = 
file:/var/lib/jenkins/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar
urls[6] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
urls[7] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
urls[8] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.11/plexus-interpolation-1.11.jar
urls[9] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.2.1/maven-reporting-api-2.2.1.jar
urls[10] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar
urls[11] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-impl/2.0.4.1/maven-reporting-impl-2.0.4.1.jar
urls[12] = 
file:/var/lib/jenkins/.m2/repository/commons-validator/commons-validator/1.2.0/commons-validator-1.2.0.jar
urls[13] = 
file:/var/lib/jenkins/.m2/repository/commons-beanutils/commons-beanutils/1.7.0/commons-beanutils-1.7.0.jar
urls[14] = 
file:/var/lib/jenkins/.m2/repository/commons-digester/commons-digester/1.6/commons-digester-1.6.jar
urls[15] = 
file:/var/lib/jenkins/.m2/repository/commons-logging/commons-logging/1.0.4/commons-logging-1.0.4.jar
urls[16] = file:/var/lib/jenkins/.m2/repository/oro/oro/2.0.8/oro-2.0.8.jar
urls[17] = 
file:/var/lib/jenkins/.m2/repository/xml-apis/xml-apis/1.0.b2/xml-apis-1.0.b2.jar
urls[18] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/shared/maven-common-artifact-filters/1.4/maven-common-artifact-filters-1.4.jar
urls[19] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/wagon/wagon-file/1.0-beta-6/wagon-file-1.0-beta-6.jar
urls[20] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-core/1.1/doxia-core-1.1.jar
urls[21] = 
file:/var/lib/jenkins/.m2/repository/xerces/xercesImpl/2.8.1/xercesImpl-2.8.1.jar
urls[22] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.1/doxia-sink-api-1.1.jar
urls[23] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-site-renderer/1.1/doxia-site-renderer-1.1.jar
urls[24] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-velocity/1.1.7/plexus-velocity-1.1.7.jar
urls[25] = 
file:/var/lib/jenkins/.m2/repository/org/apache/velocity/velocity/1.5/velocity-1.5.jar
urls[26] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-decoration-model/1.1/doxia-decoration-model-1.1.jar
urls[27] = 
file:/var/lib/jenkins/.m2/repository/commons-collections/commons-collections/3.2/commons-collections-3.2.jar
urls[28] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-xhtml/1.1/doxia-module-xhtml-1.1.jar
urls[29] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-fml/1.1/doxia-module-fml-1.1.jar
urls[30] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.15/plexus-utils-1.5.15.jar
urls[31] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interactivity-api/1.0-alpha-4/plexus-interactivity-api-1.0-alpha-4.jar
urls[32] = 
file:/var/lib/jenkins/.m2/repository/plexus/plexus-utils/1.0.2/plexus-utils-1.0.2.jar
urls[33] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-i18n/1.0-beta-7/plexus-i18n-1.0-beta-7.jar
urls[34] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/woodstox/wstx-asl/3.2.7/wstx-asl-3.2.7.jar
urls[35] = 
file:/var/lib/jenkins/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar
urls[36] = 
file:/var/lib/jenkins/.m2/repository/commons-lang/commons-lang/2.4/commons-lang-2.4.jar
Number of foreign imports: 1
import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

-----------------------------------------------------

cause : Execution default-cli of goal 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report failed: A 
required class was missing while executing 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report: 
org/apache/maven/doxia/module/xhtml/decoration/render/RenderingContext
-----------------------------------------------------
realm =    plugin>org.codehaus.mojo:versions-maven-plugin:2.0
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/mojo/versions-maven-plugin/2.0/versions-maven-plugin-2.0.jar
urls[1] = 
file:/var/lib/jenkins/.m2/repository/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar
urls[2] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-jdk14/1.5.6/slf4j-jdk14-1.5.6.jar
urls[3] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-api/1.5.6/slf4j-api-1.5.6.jar
urls[4] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/jcl-over-slf4j/1.5.6/jcl-over-slf4j-1.5.6.jar
urls[5] = 
file:/var/lib/jenkins/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar
urls[6] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
urls[7] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
urls[8] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.11/plexus-interpolation-1.11.jar
urls[9] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.2.1/maven-reporting-api-2.2.1.jar
urls[10] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar
urls[11] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-impl/2.0.4.1/maven-reporting-impl-2.0.4.1.jar
urls[12] = 
file:/var/lib/jenkins/.m2/repository/commons-validator/commons-validator/1.2.0/commons-validator-1.2.0.jar
urls[13] = 
file:/var/lib/jenkins/.m2/repository/commons-beanutils/commons-beanutils/1.7.0/commons-beanutils-1.7.0.jar
urls[14] = 
file:/var/lib/jenkins/.m2/repository/commons-digester/commons-digester/1.6/commons-digester-1.6.jar
urls[15] = 
file:/var/lib/jenkins/.m2/repository/commons-logging/commons-logging/1.0.4/commons-logging-1.0.4.jar
urls[16] = file:/var/lib/jenkins/.m2/repository/oro/oro/2.0.8/oro-2.0.8.jar
urls[17] = 
file:/var/lib/jenkins/.m2/repository/xml-apis/xml-apis/1.0.b2/xml-apis-1.0.b2.jar
urls[18] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/shared/maven-common-artifact-filters/1.4/maven-common-artifact-filters-1.4.jar
urls[19] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/wagon/wagon-file/1.0-beta-6/wagon-file-1.0-beta-6.jar
urls[20] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-core/1.1/doxia-core-1.1.jar
urls[21] = 
file:/var/lib/jenkins/.m2/repository/xerces/xercesImpl/2.8.1/xercesImpl-2.8.1.jar
urls[22] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.1/doxia-sink-api-1.1.jar
urls[23] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-site-renderer/1.1/doxia-site-renderer-1.1.jar
urls[24] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-velocity/1.1.7/plexus-velocity-1.1.7.jar
urls[25] = 
file:/var/lib/jenkins/.m2/repository/org/apache/velocity/velocity/1.5/velocity-1.5.jar
urls[26] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-decoration-model/1.1/doxia-decoration-model-1.1.jar
urls[27] = 
file:/var/lib/jenkins/.m2/repository/commons-collections/commons-collections/3.2/commons-collections-3.2.jar
urls[28] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-xhtml/1.1/doxia-module-xhtml-1.1.jar
urls[29] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-fml/1.1/doxia-module-fml-1.1.jar
urls[30] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.15/plexus-utils-1.5.15.jar
urls[31] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interactivity-api/1.0-alpha-4/plexus-interactivity-api-1.0-alpha-4.jar
urls[32] = 
file:/var/lib/jenkins/.m2/repository/plexus/plexus-utils/1.0.2/plexus-utils-1.0.2.jar
urls[33] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-i18n/1.0-beta-7/plexus-i18n-1.0-beta-7.jar
urls[34] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/woodstox/wstx-asl/3.2.7/wstx-asl-3.2.7.jar
urls[35] = 
file:/var/lib/jenkins/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar
urls[36] = 
file:/var/lib/jenkins/.m2/repository/commons-lang/commons-lang/2.4/commons-lang-2.4.jar
Number of foreign imports: 1
import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

-----------------------------------------------------

Stack trace :
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report 
(default-cli) on project common: Execution default-cli of goal 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report failed: A 
required class was missing while executing 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report: 
org/apache/maven/doxia/module/xhtml/decoration/render/RenderingContext
-----------------------------------------------------
realm =    plugin>org.codehaus.mojo:versions-maven-plugin:2.0
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/mojo/versions-maven-plugin/2.0/versions-maven-plugin-2.0.jar
urls[1] = 
file:/var/lib/jenkins/.m2/repository/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar
urls[2] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-jdk14/1.5.6/slf4j-jdk14-1.5.6.jar
urls[3] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-api/1.5.6/slf4j-api-1.5.6.jar
urls[4] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/jcl-over-slf4j/1.5.6/jcl-over-slf4j-1.5.6.jar
urls[5] = 
file:/var/lib/jenkins/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar
urls[6] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
urls[7] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
urls[8] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.11/plexus-interpolation-1.11.jar
urls[9] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.2.1/maven-reporting-api-2.2.1.jar
urls[10] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar
urls[11] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-impl/2.0.4.1/maven-reporting-impl-2.0.4.1.jar
urls[12] = 
file:/var/lib/jenkins/.m2/repository/commons-validator/commons-validator/1.2.0/commons-validator-1.2.0.jar
urls[13] = 
file:/var/lib/jenkins/.m2/repository/commons-beanutils/commons-beanutils/1.7.0/commons-beanutils-1.7.0.jar
urls[14] = 
file:/var/lib/jenkins/.m2/repository/commons-digester/commons-digester/1.6/commons-digester-1.6.jar
urls[15] = 
file:/var/lib/jenkins/.m2/repository/commons-logging/commons-logging/1.0.4/commons-logging-1.0.4.jar
urls[16] = file:/var/lib/jenkins/.m2/repository/oro/oro/2.0.8/oro-2.0.8.jar
urls[17] = 
file:/var/lib/jenkins/.m2/repository/xml-apis/xml-apis/1.0.b2/xml-apis-1.0.b2.jar
urls[18] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/shared/maven-common-artifact-filters/1.4/maven-common-artifact-filters-1.4.jar
urls[19] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/wagon/wagon-file/1.0-beta-6/wagon-file-1.0-beta-6.jar
urls[20] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-core/1.1/doxia-core-1.1.jar
urls[21] = 
file:/var/lib/jenkins/.m2/repository/xerces/xercesImpl/2.8.1/xercesImpl-2.8.1.jar
urls[22] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.1/doxia-sink-api-1.1.jar
urls[23] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-site-renderer/1.1/doxia-site-renderer-1.1.jar
urls[24] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-velocity/1.1.7/plexus-velocity-1.1.7.jar
urls[25] = 
file:/var/lib/jenkins/.m2/repository/org/apache/velocity/velocity/1.5/velocity-1.5.jar
urls[26] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-decoration-model/1.1/doxia-decoration-model-1.1.jar
urls[27] = 
file:/var/lib/jenkins/.m2/repository/commons-collections/commons-collections/3.2/commons-collections-3.2.jar
urls[28] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-xhtml/1.1/doxia-module-xhtml-1.1.jar
urls[29] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-fml/1.1/doxia-module-fml-1.1.jar
urls[30] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.15/plexus-utils-1.5.15.jar
urls[31] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interactivity-api/1.0-alpha-4/plexus-interactivity-api-1.0-alpha-4.jar
urls[32] = 
file:/var/lib/jenkins/.m2/repository/plexus/plexus-utils/1.0.2/plexus-utils-1.0.2.jar
urls[33] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-i18n/1.0-beta-7/plexus-i18n-1.0-beta-7.jar
urls[34] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/woodstox/wstx-asl/3.2.7/wstx-asl-3.2.7.jar
urls[35] = 
file:/var/lib/jenkins/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar
urls[36] = 
file:/var/lib/jenkins/.m2/repository/commons-lang/commons-lang/2.4/commons-lang-2.4.jar
Number of foreign imports: 1
import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

-----------------------------------------------------

        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at 
org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at 
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at 
org.jvnet.hudson.maven3.launcher.Maven3Launcher.main(Maven3Launcher.java:79)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at 
org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:329)
        at 
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:239)
        at org.jvnet.hudson.maven3.agent.Maven3Main.launch(Maven3Main.java:158)
        at hudson.maven.Maven3Builder.call(Maven3Builder.java:98)
        at hudson.maven.Maven3Builder.call(Maven3Builder.java:64)
        at hudson.remoting.UserRequest.perform(UserRequest.java:118)
        at hudson.remoting.UserRequest.perform(UserRequest.java:48)
        at hudson.remoting.Request$2.run(Request.java:326)
        at 
hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution 
default-cli of goal 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report failed: A 
required class was missing while executing 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report: 
org/apache/maven/doxia/module/xhtml/decoration/render/RenderingContext
-----------------------------------------------------
realm =    plugin>org.codehaus.mojo:versions-maven-plugin:2.0
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/mojo/versions-maven-plugin/2.0/versions-maven-plugin-2.0.jar
urls[1] = 
file:/var/lib/jenkins/.m2/repository/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar
urls[2] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-jdk14/1.5.6/slf4j-jdk14-1.5.6.jar
urls[3] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-api/1.5.6/slf4j-api-1.5.6.jar
urls[4] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/jcl-over-slf4j/1.5.6/jcl-over-slf4j-1.5.6.jar
urls[5] = 
file:/var/lib/jenkins/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar
urls[6] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
urls[7] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
urls[8] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.11/plexus-interpolation-1.11.jar
urls[9] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.2.1/maven-reporting-api-2.2.1.jar
urls[10] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar
urls[11] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-impl/2.0.4.1/maven-reporting-impl-2.0.4.1.jar
urls[12] = 
file:/var/lib/jenkins/.m2/repository/commons-validator/commons-validator/1.2.0/commons-validator-1.2.0.jar
urls[13] = 
file:/var/lib/jenkins/.m2/repository/commons-beanutils/commons-beanutils/1.7.0/commons-beanutils-1.7.0.jar
urls[14] = 
file:/var/lib/jenkins/.m2/repository/commons-digester/commons-digester/1.6/commons-digester-1.6.jar
urls[15] = 
file:/var/lib/jenkins/.m2/repository/commons-logging/commons-logging/1.0.4/commons-logging-1.0.4.jar
urls[16] = file:/var/lib/jenkins/.m2/repository/oro/oro/2.0.8/oro-2.0.8.jar
urls[17] = 
file:/var/lib/jenkins/.m2/repository/xml-apis/xml-apis/1.0.b2/xml-apis-1.0.b2.jar
urls[18] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/shared/maven-common-artifact-filters/1.4/maven-common-artifact-filters-1.4.jar
urls[19] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/wagon/wagon-file/1.0-beta-6/wagon-file-1.0-beta-6.jar
urls[20] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-core/1.1/doxia-core-1.1.jar
urls[21] = 
file:/var/lib/jenkins/.m2/repository/xerces/xercesImpl/2.8.1/xercesImpl-2.8.1.jar
urls[22] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.1/doxia-sink-api-1.1.jar
urls[23] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-site-renderer/1.1/doxia-site-renderer-1.1.jar
urls[24] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-velocity/1.1.7/plexus-velocity-1.1.7.jar
urls[25] = 
file:/var/lib/jenkins/.m2/repository/org/apache/velocity/velocity/1.5/velocity-1.5.jar
urls[26] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-decoration-model/1.1/doxia-decoration-model-1.1.jar
urls[27] = 
file:/var/lib/jenkins/.m2/repository/commons-collections/commons-collections/3.2/commons-collections-3.2.jar
urls[28] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-xhtml/1.1/doxia-module-xhtml-1.1.jar
urls[29] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-fml/1.1/doxia-module-fml-1.1.jar
urls[30] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.15/plexus-utils-1.5.15.jar
urls[31] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interactivity-api/1.0-alpha-4/plexus-interactivity-api-1.0-alpha-4.jar
urls[32] = 
file:/var/lib/jenkins/.m2/repository/plexus/plexus-utils/1.0.2/plexus-utils-1.0.2.jar
urls[33] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-i18n/1.0-beta-7/plexus-i18n-1.0-beta-7.jar
urls[34] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/woodstox/wstx-asl/3.2.7/wstx-asl-3.2.7.jar
urls[35] = 
file:/var/lib/jenkins/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar
urls[36] = 
file:/var/lib/jenkins/.m2/repository/commons-lang/commons-lang/2.4/commons-lang-2.4.jar
Number of foreign imports: 1
import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

-----------------------------------------------------

        at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:127)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        ... 27 more
Caused by: org.apache.maven.plugin.PluginContainerException: A required class 
was missing while executing 
org.codehaus.mojo:versions-maven-plugin:2.0:dependency-updates-report: 
org/apache/maven/doxia/module/xhtml/decoration/render/RenderingContext
-----------------------------------------------------
realm =    plugin>org.codehaus.mojo:versions-maven-plugin:2.0
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/mojo/versions-maven-plugin/2.0/versions-maven-plugin-2.0.jar
urls[1] = 
file:/var/lib/jenkins/.m2/repository/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar
urls[2] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-jdk14/1.5.6/slf4j-jdk14-1.5.6.jar
urls[3] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/slf4j-api/1.5.6/slf4j-api-1.5.6.jar
urls[4] = 
file:/var/lib/jenkins/.m2/repository/org/slf4j/jcl-over-slf4j/1.5.6/jcl-over-slf4j-1.5.6.jar
urls[5] = 
file:/var/lib/jenkins/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar
urls[6] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
urls[7] = 
file:/var/lib/jenkins/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
urls[8] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.11/plexus-interpolation-1.11.jar
urls[9] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.2.1/maven-reporting-api-2.2.1.jar
urls[10] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar
urls[11] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/reporting/maven-reporting-impl/2.0.4.1/maven-reporting-impl-2.0.4.1.jar
urls[12] = 
file:/var/lib/jenkins/.m2/repository/commons-validator/commons-validator/1.2.0/commons-validator-1.2.0.jar
urls[13] = 
file:/var/lib/jenkins/.m2/repository/commons-beanutils/commons-beanutils/1.7.0/commons-beanutils-1.7.0.jar
urls[14] = 
file:/var/lib/jenkins/.m2/repository/commons-digester/commons-digester/1.6/commons-digester-1.6.jar
urls[15] = 
file:/var/lib/jenkins/.m2/repository/commons-logging/commons-logging/1.0.4/commons-logging-1.0.4.jar
urls[16] = file:/var/lib/jenkins/.m2/repository/oro/oro/2.0.8/oro-2.0.8.jar
urls[17] = 
file:/var/lib/jenkins/.m2/repository/xml-apis/xml-apis/1.0.b2/xml-apis-1.0.b2.jar
urls[18] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/shared/maven-common-artifact-filters/1.4/maven-common-artifact-filters-1.4.jar
urls[19] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/wagon/wagon-file/1.0-beta-6/wagon-file-1.0-beta-6.jar
urls[20] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-core/1.1/doxia-core-1.1.jar
urls[21] = 
file:/var/lib/jenkins/.m2/repository/xerces/xercesImpl/2.8.1/xercesImpl-2.8.1.jar
urls[22] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.1/doxia-sink-api-1.1.jar
urls[23] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-site-renderer/1.1/doxia-site-renderer-1.1.jar
urls[24] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-velocity/1.1.7/plexus-velocity-1.1.7.jar
urls[25] = 
file:/var/lib/jenkins/.m2/repository/org/apache/velocity/velocity/1.5/velocity-1.5.jar
urls[26] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-decoration-model/1.1/doxia-decoration-model-1.1.jar
urls[27] = 
file:/var/lib/jenkins/.m2/repository/commons-collections/commons-collections/3.2/commons-collections-3.2.jar
urls[28] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-xhtml/1.1/doxia-module-xhtml-1.1.jar
urls[29] = 
file:/var/lib/jenkins/.m2/repository/org/apache/maven/doxia/doxia-module-fml/1.1/doxia-module-fml-1.1.jar
urls[30] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.15/plexus-utils-1.5.15.jar
urls[31] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-interactivity-api/1.0-alpha-4/plexus-interactivity-api-1.0-alpha-4.jar
urls[32] = 
file:/var/lib/jenkins/.m2/repository/plexus/plexus-utils/1.0.2/plexus-utils-1.0.2.jar
urls[33] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/plexus/plexus-i18n/1.0-beta-7/plexus-i18n-1.0-beta-7.jar
urls[34] = 
file:/var/lib/jenkins/.m2/repository/org/codehaus/woodstox/wstx-asl/3.2.7/wstx-asl-3.2.7.jar
urls[35] = 
file:/var/lib/jenkins/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar
urls[36] = 
file:/var/lib/jenkins/.m2/repository/commons-lang/commons-lang/2.4/commons-lang-2.4.jar
Number of foreign imports: 1
import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

-----------------------------------------------------

        at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:125)
        ... 28 more
Caused by: java.lang.NoClassDefFoundError: 
org/apache/maven/doxia/module/xhtml/decoration/render/RenderingContext
        at 
org.apache.maven.reporting.sink.SinkFactory.createSink(SinkFactory.java:56)
        at 
org.apache.maven.reporting.AbstractMavenReport.execute(AbstractMavenReport.java:62)
        at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        ... 28 more
Caused by: java.lang.ClassNotFoundException: 
org.apache.maven.doxia.module.xhtml.decoration.render.RenderingContext
        at 
org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
        at 
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
        at 
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
        ... 31 more


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