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  1. Maven Release Plugin
  2. MRELEASE-654

Release:perform fails on releasing a tag from an empty directory

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Details

    • Bug
    • Status: Open
    • Minor
    • Resolution: Unresolved
    • 2.1, 2.4.2
    • None
    • perform
    • None
    • Apache Maven 3.0.2 (r1056850; 2011-01-09 01:58:10+0100)
      Java version: 1.6.0_22, vendor: Sun Microsystems Inc.
      OS name: "linux", version: "2.6.35-25-generic", arch: "amd64", family: "unix"

    Description

      If we release our project from the same directory when we executed the release:prepare the perform phase completes successfully, while performing a release from a tag (in an empty directory) we have the following stack trace:

      $ mvn release:perform -Dtag=unilet-base-5.3.13 -DconnectionUrl=scm:svn:https://srvdevel.unimatica.lan/svn/unilet -X
      
      Apache Maven 3.0.2 (r1056850; 2011-01-09 01:58:10+0100)
      Java version: 1.6.0_22, vendor: Sun Microsystems Inc.
      Java home: /usr/lib/jvm/java-6-sun-1.6.0.22/jre
      Default locale: en_US, platform encoding: UTF-8
      OS name: "linux", version: "2.6.35-25-generic", arch: "amd64", family: "unix"
      [INFO] Error stacktraces are turned on.
      [DEBUG] Reading global settings from /usr/local/app/maven/conf/settings.xml
      [DEBUG] Reading user settings from /home/gboccardo/.m2/settings.xml
      [DEBUG] Using local repository at /home/gboccardo/.m2/repository
      [DEBUG] Using manager EnhancedLocalRepositoryManager with priority 10 for /home/gboccardo/.m2/repository
      [INFO] Scanning for projects...
      [DEBUG] Extension realms for project org.apache.maven:standalone-pom:pom:1: (none)
      [DEBUG] Looking up lifecyle mappings for packaging pom from ClassRealm[plexus.core, parent: null]
      [DEBUG] Resolving plugin prefix release from [org.apache.maven.plugins, org.codehaus.mojo]
      [DEBUG] Resolved plugin prefix release to org.apache.maven.plugins:maven-release-plugin from POM org.apache.maven:standalone-pom:pom:1
      [DEBUG] === REACTOR BUILD PLAN ================================================
      [DEBUG] Project: org.apache.maven:standalone-pom:pom:1
      [DEBUG] Tasks:   [release:perform]
      [DEBUG] Style:   Aggregating
      [DEBUG] =======================================================================
      [INFO]                                                                         
      [INFO] ------------------------------------------------------------------------
      [INFO] Building Maven Stub Project (No POM) 1
      [INFO] ------------------------------------------------------------------------
      [DEBUG] Resolving plugin prefix release from [org.apache.maven.plugins, org.codehaus.mojo]
      [DEBUG] Resolved plugin prefix release to org.apache.maven.plugins:maven-release-plugin from POM org.apache.maven:standalone-pom:pom:1
      [DEBUG] Lifecycle default -> [validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy]
      [DEBUG] Lifecycle clean -> [pre-clean, clean, post-clean]
      [DEBUG] Lifecycle site -> [pre-site, site, post-site, site-deploy]
      [DEBUG] === PROJECT BUILD PLAN ================================================
      [DEBUG] Project:       org.apache.maven:standalone-pom:1
      [DEBUG] Dependencies (collect): []
      [DEBUG] Dependencies (resolve): []
      [DEBUG] Repositories (dependencies): [unimatica-m2-snapshot-repository (http://coderepository.unimatica.lan/dev2/maven2-snapshot, releases=true, snapshots=true, managed=false), unimatica-m2-coderepository (http://coderepository.unimatica.lan/dev2/maven2, releases=true, snapshots=true, managed=false), central (http://repo1.maven.org/maven2, releases=true, snapshots=false, managed=false)]
      [DEBUG] Repositories (plugins)     : [central (http://repo1.maven.org/maven2, releases=true, snapshots=false, managed=false)]
      [DEBUG] -----------------------------------------------------------------------
      [DEBUG] Goal:          org.apache.maven.plugins:maven-release-plugin:2.0:perform (default-cli)
      [DEBUG] Style:         Aggregating
      [DEBUG] Configuration: <?xml version="1.0" encoding="UTF-8"?>
      <configuration>
        <arguments>${arguments}</arguments>
        <basedir>${basedir}</basedir>
        <connectionUrl>${connectionUrl}</connectionUrl>
        <goals>${goals}</goals>
        <javaHome default-value="${java.home}"/>
        <localCheckout default-value="false">${localCheckout}</localCheckout>
        <localRepoDirectory default-value="${maven.repo.local}"/>
        <mavenExecutorId default-value="invoker">${mavenExecutorId}</mavenExecutorId>
        <mavenHome default-value="${maven.home}"/>
        <password>${password}</password>
        <pomFileName>${pomFileName}</pomFileName>
        <project>${project}</project>
        <reactorProjects>${reactorProjects}</reactorProjects>
        <releaseProfiles>${releaseProfiles}</releaseProfiles>
        <scmCommentPrefix default-value="[maven-release-plugin] ">${scmCommentPrefix}</scmCommentPrefix>
        <settings>${settings}</settings>
        <tag>${tag}</tag>
        <tagBase>${tagBase}</tagBase>
        <useReleaseProfile default-value="true">${useReleaseProfile}</useReleaseProfile>
        <username>${username}</username>
        <workingDirectory default-value="${project.build.directory}/checkout">${workingDirectory}</workingDirectory>
      </configuration>
      [DEBUG] =======================================================================
      [INFO] 
      [INFO] --- maven-release-plugin:2.0:perform (default-cli) @ standalone-pom ---
      [DEBUG] org.apache.maven.plugins:maven-release-plugin:jar:2.0:
      [DEBUG]    org.apache.maven:maven-plugin-api:jar:2.0.9:compile
      [DEBUG]    org.apache.maven.release:maven-release-manager:jar:2.0:compile
      [DEBUG]       org.codehaus.plexus:plexus-container-default:jar:1.0-alpha-9:compile
      [DEBUG]          junit:junit:jar:3.8.1:compile
      [DEBUG]       org.codehaus.plexus:plexus-interactivity-api:jar:1.0-alpha-6:compile
      [DEBUG]       org.apache.maven:maven-artifact:jar:2.0.9:compile
      [DEBUG]       org.apache.maven:maven-artifact-manager:jar:2.0.9:compile
      [DEBUG]       org.apache.maven.shared:maven-invoker:jar:2.0.9:compile
      [DEBUG]       commons-lang:commons-lang:jar:2.4:compile
      [DEBUG]       commons-cli:commons-cli:jar:1.0:compile
      [DEBUG]          commons-logging:commons-logging:jar:1.0:compile
      [DEBUG]       org.apache.maven.scm:maven-scm-providers-standard:pom:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-accurev:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-bazaar:jar:1.3:runtime
      [DEBUG]             regexp:regexp:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-clearcase:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-cvsexe:jar:1.3:runtime
      [DEBUG]             org.apache.maven.scm:maven-scm-provider-cvs-commons:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-cvsjava:jar:1.3:runtime
      [DEBUG]             org.netbeans.lib:cvsclient:jar:20060125:runtime
      [DEBUG]             ch.ethz.ganymed:ganymed-ssh2:jar:build210:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-gitexe:jar:1.3:runtime
      [DEBUG]             org.apache.maven.scm:maven-scm-provider-git-commons:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-hg:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-perforce:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-starteam:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-svnexe:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-synergy:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-vss:jar:1.3:runtime
      [DEBUG]          org.apache.maven.scm:maven-scm-provider-tfs:jar:1.3:runtime
      [DEBUG]       org.apache.maven.scm:maven-scm-manager-plexus:jar:1.3:runtime
      [DEBUG]       org.apache.maven.scm:maven-scm-provider-svn-commons:jar:1.3:compile
      [DEBUG]       jaxen:jaxen:jar:1.1-beta-8:runtime
      [DEBUG]          jdom:jdom:jar:1.0:runtime
      [DEBUG]    org.apache.maven:maven-model:jar:2.0.9:compile
      [DEBUG]    org.apache.maven:maven-core:jar:2.0.9:compile
      [DEBUG]       org.apache.maven:maven-plugin-parameter-documenter:jar:2.0.9:compile
      [DEBUG]       org.apache.maven.reporting:maven-reporting-api:jar:2.0.9:compile
      [DEBUG]          org.apache.maven.doxia:doxia-sink-api:jar:1.0-alpha-10:compile
      [DEBUG]       org.apache.maven:maven-profile:jar:2.0.9:compile
      [DEBUG]       org.apache.maven:maven-repository-metadata:jar:2.0.9:compile
      [DEBUG]       org.apache.maven:maven-error-diagnostics:jar:2.0.9:compile
      [DEBUG]       org.apache.maven:maven-plugin-descriptor:jar:2.0.9:compile
      [DEBUG]       org.apache.maven:maven-monitor:jar:2.0.9:compile
      [DEBUG]       classworlds:classworlds:jar:1.1:compile
      [DEBUG]    org.apache.maven:maven-project:jar:2.0.9:compile
      [DEBUG]       org.apache.maven:maven-plugin-registry:jar:2.0.9:compile
      [DEBUG]    org.apache.maven:maven-settings:jar:2.0.9:compile
      [DEBUG]    org.apache.maven.scm:maven-scm-api:jar:1.3:compile
      [DEBUG]    org.codehaus.plexus:plexus-utils:jar:1.5.6:compile
      [DEBUG]    org.jdom:jdom:jar:1.1:compile
      [DEBUG] Created new class realm maven.api
      [DEBUG] Importing foreign packages into class realm maven.api
      [DEBUG]   Imported: org.apache.maven.wagon.events < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.transfer < plexus.core
      [DEBUG]   Imported: org.apache.maven.exception < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.metadata < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.util.xml.Xpp3Dom < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.collection < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.version < plexus.core
      [DEBUG]   Imported: org.apache.maven.monitor < plexus.core
      [DEBUG]   Imported: org.apache.maven.wagon.repository < plexus.core
      [DEBUG]   Imported: org.apache.maven.repository < plexus.core
      [DEBUG]   Imported: org.apache.maven.wagon.resource < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.logging < plexus.core
      [DEBUG]   Imported: org.apache.maven.profiles < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.repository < plexus.core
      [DEBUG]   Imported: org.apache.maven.classrealm < plexus.core
      [DEBUG]   Imported: org.apache.maven.execution < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.artifact < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.spi < plexus.core
      [DEBUG]   Imported: org.apache.maven.reporting < plexus.core
      [DEBUG]   Imported: org.apache.maven.usability < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.container < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.component < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.util.xml.pull.XmlSerializer < plexus.core
      [DEBUG]   Imported: org.apache.maven.wagon.authentication < plexus.core
      [DEBUG]   Imported: org.apache.maven.lifecycle < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.classworlds < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.graph < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.* < plexus.core
      [DEBUG]   Imported: org.apache.maven.settings < plexus.core
      [DEBUG]   Imported: org.codehaus.classworlds < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.impl < plexus.core
      [DEBUG]   Imported: org.apache.maven.wagon.* < plexus.core
      [DEBUG]   Imported: org.apache.maven.toolchain < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.deployment < plexus.core
      [DEBUG]   Imported: org.apache.maven.wagon.observers < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.util.xml.pull.XmlPullParserException < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.util.xml.pull.XmlPullParser < plexus.core
      [DEBUG]   Imported: org.apache.maven.configuration < plexus.core
      [DEBUG]   Imported: org.apache.maven.cli < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.installation < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.context < plexus.core
      [DEBUG]   Imported: org.apache.maven.wagon.authorization < plexus.core
      [DEBUG]   Imported: org.apache.maven.project < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.lifecycle < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.configuration < plexus.core
      [DEBUG]   Imported: org.apache.maven.artifact < plexus.core
      [DEBUG]   Imported: org.apache.maven.model < plexus.core
      [DEBUG]   Imported: org.apache.maven.* < plexus.core
      [DEBUG]   Imported: org.apache.maven.wagon.proxy < plexus.core
      [DEBUG]   Imported: org.sonatype.aether.resolution < plexus.core
      [DEBUG]   Imported: org.apache.maven.plugin < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.* < plexus.core
      [DEBUG]   Imported: org.codehaus.plexus.personality < plexus.core
      [DEBUG] Populating class realm maven.api
      [DEBUG] Created new class realm plugin>org.apache.maven.plugins:maven-release-plugin:2.0
      [DEBUG] Importing foreign packages into class realm plugin>org.apache.maven.plugins:maven-release-plugin:2.0
      [DEBUG]   Imported:  < maven.api
      [DEBUG] Populating class realm plugin>org.apache.maven.plugins:maven-release-plugin:2.0
      [DEBUG]   Included: org.apache.maven.plugins:maven-release-plugin:jar:2.0
      [DEBUG]   Included: org.apache.maven.release:maven-release-manager:jar:2.0
      [DEBUG]   Included: junit:junit:jar:3.8.1
      [DEBUG]   Included: org.codehaus.plexus:plexus-interactivity-api:jar:1.0-alpha-6
      [DEBUG]   Included: org.apache.maven.shared:maven-invoker:jar:2.0.9
      [DEBUG]   Included: commons-lang:commons-lang:jar:2.4
      [DEBUG]   Included: commons-cli:commons-cli:jar:1.0
      [DEBUG]   Included: commons-logging:commons-logging:jar:1.0
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-providers-standard:pom:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-accurev:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-bazaar:jar:1.3
      [DEBUG]   Included: regexp:regexp:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-clearcase:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-cvsexe:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-cvs-commons:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-cvsjava:jar:1.3
      [DEBUG]   Included: org.netbeans.lib:cvsclient:jar:20060125
      [DEBUG]   Included: ch.ethz.ganymed:ganymed-ssh2:jar:build210
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-gitexe:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-git-commons:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-hg:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-perforce:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-starteam:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-svnexe:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-synergy:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-vss:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-tfs:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-manager-plexus:jar:1.3
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-provider-svn-commons:jar:1.3
      [DEBUG]   Included: jaxen:jaxen:jar:1.1-beta-8
      [DEBUG]   Included: jdom:jdom:jar:1.0
      [DEBUG]   Included: org.apache.maven.reporting:maven-reporting-api:jar:2.0.9
      [DEBUG]   Included: org.apache.maven.doxia:doxia-sink-api:jar:1.0-alpha-10
      [DEBUG]   Included: org.apache.maven.scm:maven-scm-api:jar:1.3
      [DEBUG]   Included: org.codehaus.plexus:plexus-utils:jar:1.5.6
      [DEBUG]   Included: org.jdom:jdom:jar:1.1
      [DEBUG]   Excluded: org.apache.maven:maven-plugin-api:jar:2.0.9
      [DEBUG]   Excluded: org.codehaus.plexus:plexus-container-default:jar:1.0-alpha-9
      [DEBUG]   Excluded: org.apache.maven:maven-artifact:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-artifact-manager:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-model:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-core:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-plugin-parameter-documenter:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-profile:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-repository-metadata:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-error-diagnostics:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-plugin-descriptor:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-monitor:jar:2.0.9
      [DEBUG]   Excluded: classworlds:classworlds:jar:1.1
      [DEBUG]   Excluded: org.apache.maven:maven-project:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-plugin-registry:jar:2.0.9
      [DEBUG]   Excluded: org.apache.maven:maven-settings:jar:2.0.9
      [DEBUG] Configuring mojo org.apache.maven.plugins:maven-release-plugin:2.0:perform from plugin realm ClassRealm[plugin>org.apache.maven.plugins:maven-release-plugin:2.0, parent: sun.misc.Launcher$AppClassLoader@5acac268]
      [DEBUG] Configuring mojo 'org.apache.maven.plugins:maven-release-plugin:2.0:perform' with basic configurator -->
      [DEBUG]   (s) basedir = /tmp
      [DEBUG]   (f) connectionUrl = scm:svn:https://srvdevel.unimatica.lan/svn/unilet
      [DEBUG]   (f) javaHome = /usr/lib/jvm/java-6-sun-1.6.0.22/jre
      [DEBUG]   (f) localCheckout = false
      [DEBUG]   (f) mavenExecutorId = invoker
      [DEBUG]   (f) mavenHome = /usr/local/app/maven
      [DEBUG]   (f) project = MavenProject: org.apache.maven:standalone-pom:1 @ 
      [DEBUG]   (f) reactorProjects = [MavenProject: org.apache.maven:standalone-pom:1 @ ]
      [DEBUG]   (f) scmCommentPrefix = [maven-release-plugin] 
      [DEBUG]   (f) settings = org.apache.maven.execution.SettingsAdapter@4f536eec
      [DEBUG]   (f) tag = unilet-base-5.3.13
      [DEBUG]   (f) useReleaseProfile = true
      [DEBUG]   (f) workingDirectory = /tmp/${project.basedir}/target/checkout
      [DEBUG] -- end configuration --
      [16:01:40]<-----------------------------------------------------------------/tmp------------------------------------------------------------------>[15/02/11]
      [INFO] Checking out the project to perform the release ...
      [INFO] Executing: /bin/sh -c cd /tmp/${project.basedir}/target && svn --non-interactive checkout https://srvdevel.unimatica.lan/svn/unilet/tags/unilet-base-5.3.13 '/tmp/${project.basedir}/target/checkout'
      [INFO] Working directory: /tmp/${project.basedir}/target
      [INFO] ------------------------------------------------------------------------
      [INFO] BUILD FAILURE
      [INFO] ------------------------------------------------------------------------
      [INFO] Total time: 1.134s
      [INFO] Finished at: Tue Feb 15 16:01:40 CET 2011
      [INFO] Final Memory: 7M/154M
      [INFO] ------------------------------------------------------------------------
      [ERROR] Failed to execute goal org.apache.maven.plugins:maven-release-plugin:2.0:perform (default-cli) on project standalone-pom: Execution default-cli of goal org.apache.maven.plugins:maven-release-plugin:2.0:perform failed. NullPointerException -> [Help 1]
      org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-release-plugin:2.0:perform (default-cli) on project standalone-pom: Execution default-cli of goal org.apache.maven.plugins:maven-release-plugin:2.0:perform failed.
      	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:319)
      	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
      	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:534)
      	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
      	at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      	at java.lang.reflect.Method.invoke(Method.java:597)
      	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
      	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
      	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
      	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
      Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-cli of goal org.apache.maven.plugins:maven-release-plugin:2.0:perform failed.
      	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:116)
      	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
      	... 19 more
      Caused by: java.lang.NullPointerException
      	at org.apache.maven.shared.release.util.ReleaseUtil.getCommonBasedir(ReleaseUtil.java:188)
      	at org.apache.maven.shared.release.util.ReleaseUtil.getCommonBasedir(ReleaseUtil.java:177)
      	at org.apache.maven.shared.release.phase.CheckoutProjectFromScm.execute(CheckoutProjectFromScm.java:157)
      	at org.apache.maven.shared.release.DefaultReleaseManager.perform(DefaultReleaseManager.java:343)
      	at org.apache.maven.shared.release.DefaultReleaseManager.perform(DefaultReleaseManager.java:289)
      	at org.apache.maven.shared.release.DefaultReleaseManager.perform(DefaultReleaseManager.java:269)
      	at org.apache.maven.plugins.release.PerformReleaseMojo.execute(PerformReleaseMojo.java:131)
      	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107)
      	... 20 more
      [ERROR] 
      [ERROR] 
      [ERROR] For more information about the errors and possible solutions, please read the following articles:
      [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException
      

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            jhack Giacomo Boccardo
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