Version 2.1.14 is affected by https://issues.apache.org/jira/browse/MNG-5787

[hgschmie]

using maven 3.3.3 / Java 1.8.0_45

This seems to be the issue described in https://issues.apache.org/jira/browse/MNG-5787

[INFO] --- git-commit-id-plugin:2.1.14:revision (default) @ basepom-foundation ---
[DEBUG] Dependency collection stats: {ConflictMarker.analyzeTime=0, ConflictMarker.markTime=0, ConflictMarker.nodeCount=82, ConflictIdSorter.graphTime=1, ConflictIdSorter.topsortTime=0, ConflictIdSorter.conflictIdCount=43, ConflictIdSorter.conflictIdCycleCount=0, ConflictResolver.totalTime=2, Confl
ictResolver.conflictItemCount=80, DefaultDependencyCollector.collectTime=74, DefaultDependencyCollector.transformTime=3}
[DEBUG] pl.project13.maven:git-commit-id-plugin:jar:2.1.14:
[DEBUG] org.apache.maven:maven-plugin-api:jar:3.1.1:compile
[DEBUG] org.apache.maven:maven-model:jar:3.1.1:compile
[DEBUG] org.apache.maven:maven-artifact:jar:3.1.1:compile
[DEBUG] org.eclipse.sisu:org.eclipse.sisu.plexus:jar:0.0.0.M5:compile
[DEBUG] javax.enterprise:cdi-api:jar:1.0:compile
[DEBUG] javax.annotation:jsr250-api:jar:1.0:compile
[DEBUG] javax.inject:javax.inject:jar:1:compile
[DEBUG] org.sonatype.sisu:sisu-guice:jar:no_aop:3.1.0:compile
[DEBUG] aopalliance:aopalliance:jar:1.0:compile
[DEBUG] org.eclipse.sisu:org.eclipse.sisu.inject:jar:0.0.0.M5:compile
[DEBUG] org.apache.maven:maven-core:jar:3.1.1:compile
[DEBUG] org.apache.maven:maven-settings:jar:3.1.1:compile
[DEBUG] org.apache.maven:maven-settings-builder:jar:3.1.1:compile
[DEBUG] org.apache.maven:maven-repository-metadata:jar:3.1.1:compile
[DEBUG] org.apache.maven:maven-model-builder:jar:3.1.1:compile
[DEBUG] org.apache.maven:maven-aether-provider:jar:3.1.1:compile
[DEBUG] org.eclipse.aether:aether-spi:jar:0.9.0.M2:compile
[DEBUG] org.eclipse.aether:aether-impl:jar:0.9.0.M2:compile
[DEBUG] org.eclipse.aether:aether-api:jar:0.9.0.M2:compile
[DEBUG] org.eclipse.aether:aether-util:jar:0.9.0.M2:compile
[DEBUG] org.codehaus.plexus:plexus-interpolation:jar:1.19:compile
[DEBUG] org.codehaus.plexus:plexus-utils:jar:3.0.15:compile
[DEBUG] org.codehaus.plexus:plexus-classworlds:jar:2.5.1:compile
[DEBUG] org.codehaus.plexus:plexus-component-annotations:jar:1.5.5:compile
[DEBUG] org.sonatype.plexus:plexus-sec-dispatcher:jar:1.3:compile
[DEBUG] org.sonatype.plexus:plexus-cipher:jar:1.4:compile
[DEBUG] com.fasterxml.jackson.core:jackson-databind:jar:2.5.1:compile
[DEBUG] com.fasterxml.jackson.core:jackson-annotations:jar:2.5.0:compile
[DEBUG] com.fasterxml.jackson.core:jackson-core:jar:2.5.1:compile
[DEBUG] joda-time:joda-time:jar:2.7:compile
[DEBUG] com.google.guava:guava:jar:18.0:compile
[DEBUG] com.intellij:annotations:jar:12.0:compile
[DEBUG] org.eclipse.jgit:org.eclipse.jgit:jar:3.7.0.201502260915-r:compile
[DEBUG] com.jcraft:jsch:jar:0.1.50:compile
[DEBUG] com.googlecode.javaewah:JavaEWAH:jar:0.7.9:compile
[DEBUG] org.apache.httpcomponents:httpclient:jar:4.1.3:compile
[DEBUG] org.apache.httpcomponents:httpcore:jar:4.1.4:compile
[DEBUG] commons-logging:commons-logging:jar:1.1.1:compile
[DEBUG] commons-codec:commons-codec:jar:1.4:compile
[DEBUG] org.slf4j:slf4j-api:jar:1.7.12:compile
[DEBUG] org.slf4j:slf4j-simple:jar:1.7.12:compile
[DEBUG] Created new class realm plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
[DEBUG] Importing foreign packages into class realm plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
[DEBUG] Imported: < maven.api
[DEBUG] Populating class realm plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
[DEBUG] Included: pl.project13.maven:git-commit-id-plugin:jar:2.1.14
[DEBUG] Included: javax.enterprise:cdi-api:jar:1.0
[DEBUG] Included: javax.annotation:jsr250-api:jar:1.0
[DEBUG] Included: org.sonatype.sisu:sisu-guice:jar:no_aop:3.1.0
[DEBUG] Included: aopalliance:aopalliance:jar:1.0
[DEBUG] Included: org.eclipse.sisu:org.eclipse.sisu.inject:jar:0.0.0.M5
[DEBUG] Included: org.eclipse.aether:aether-util:jar:0.9.0.M2
[DEBUG] Included: org.codehaus.plexus:plexus-interpolation:jar:1.19
[DEBUG] Included: org.codehaus.plexus:plexus-utils:jar:3.0.15
[DEBUG] Included: org.codehaus.plexus:plexus-component-annotations:jar:1.5.5
[DEBUG] Included: org.sonatype.plexus:plexus-sec-dispatcher:jar:1.3
[DEBUG] Included: org.sonatype.plexus:plexus-cipher:jar:1.4
[DEBUG] Included: com.fasterxml.jackson.core:jackson-databind:jar:2.5.1
[DEBUG] Included: com.fasterxml.jackson.core:jackson-annotations:jar:2.5.0
[DEBUG] com.fasterxml.jackson.core:jackson-core:jar:2.5.1:compile
[DEBUG] joda-time:joda-time:jar:2.7:compile
[DEBUG] com.google.guava:guava:jar:18.0:compile
[DEBUG] com.intellij:annotations:jar:12.0:compile
[DEBUG] org.eclipse.jgit:org.eclipse.jgit:jar:3.7.0.201502260915-r:compile
[DEBUG] com.jcraft:jsch:jar:0.1.50:compile
[DEBUG] com.googlecode.javaewah:JavaEWAH:jar:0.7.9:compile
[DEBUG] org.apache.httpcomponents:httpclient:jar:4.1.3:compile
[DEBUG] org.apache.httpcomponents:httpcore:jar:4.1.4:compile
[DEBUG] commons-logging:commons-logging:jar:1.1.1:compile
[DEBUG] commons-codec:commons-codec:jar:1.4:compile
[DEBUG] org.slf4j:slf4j-api:jar:1.7.12:compile
[DEBUG] org.slf4j:slf4j-simple:jar:1.7.12:compile
[DEBUG] Created new class realm plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
[DEBUG] Importing foreign packages into class realm plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
[DEBUG] Imported: < maven.api
[DEBUG] Populating class realm plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
[DEBUG] Included: pl.project13.maven:git-commit-id-plugin:jar:2.1.14
[DEBUG] Included: javax.enterprise:cdi-api:jar:1.0
[DEBUG] Included: javax.annotation:jsr250-api:jar:1.0
[DEBUG] Included: org.sonatype.sisu:sisu-guice:jar:no_aop:3.1.0
[DEBUG] Included: aopalliance:aopalliance:jar:1.0
[DEBUG] Included: org.eclipse.sisu:org.eclipse.sisu.inject:jar:0.0.0.M5
[DEBUG] Included: org.eclipse.aether:aether-util:jar:0.9.0.M2
[DEBUG] Included: org.codehaus.plexus:plexus-interpolation:jar:1.19
[DEBUG] Included: org.codehaus.plexus:plexus-utils:jar:3.0.15
[DEBUG] Included: org.codehaus.plexus:plexus-component-annotations:jar:1.5.5
[DEBUG] Included: org.sonatype.plexus:plexus-sec-dispatcher:jar:1.3
[DEBUG] Included: org.sonatype.plexus:plexus-cipher:jar:1.4
[DEBUG] Included: com.fasterxml.jackson.core:jackson-databind:jar:2.5.1
[DEBUG] Included: com.fasterxml.jackson.core:jackson-annotations:jar:2.5.0
[DEBUG] Included: com.fasterxml.jackson.core:jackson-core:jar:2.5.1
[DEBUG] Included: joda-time:joda-time:jar:2.7
[DEBUG] Included: com.google.guava:guava:jar:18.0
[DEBUG] Included: com.intellij:annotations:jar:12.0
[DEBUG] Included: org.eclipse.jgit:org.eclipse.jgit:jar:3.7.0.201502260915-r
[DEBUG] Included: com.jcraft:jsch:jar:0.1.50
[DEBUG] Included: com.googlecode.javaewah:JavaEWAH:jar:0.7.9
[DEBUG] Included: org.apache.httpcomponents:httpclient:jar:4.1.3
[DEBUG] Included: org.apache.httpcomponents:httpcore:jar:4.1.4
[DEBUG] Included: commons-logging:commons-logging:jar:1.1.1
[DEBUG] Included: commons-codec:commons-codec:jar:1.4
[DEBUG] Included: org.slf4j:slf4j-simple:jar:1.7.12
[DEBUG] Configuring mojo pl.project13.maven:git-commit-id-plugin:2.1.14:revision from plugin realm ClassRealm[plugin>pl.project13.maven:git-commit-id-plugin:2.1.14, parent: sun.misc.Launcher$AppClassLoader@4e25154f]
[WARNING] Error injecting: pl.project13.maven.git.GitCommitIdMojo
com.google.inject.ProvisionException: Unable to provision, see the following errors:

1) Error injecting constructor, java.lang.NoClassDefFoundError: org/slf4j/helpers/MarkerIgnoringBase
 at pl.project13.maven.git.GitCommitIdMojo.<init>(Unknown Source)
 while locating pl.project13.maven.git.GitCommitIdMojo

1 error
 at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1018)
 at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1044)
 at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48)
 at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:86)
 at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:54)
 at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:70)
 at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115)
 at org.eclipse.sisu.bean.BeanScheduler$Activator.onProvision(BeanScheduler.java:176)
 at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:126)
 at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68)
 at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:68)
 at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:46)
 at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1009)
 at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1059)
 at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1005)
 at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:36)
 at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81)
 at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
 at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:263)
 at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:255)
 at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:546)
 at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:121)
 at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
 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:116)
 at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
 at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
 at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
 at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
 at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
 at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
 at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)
 at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)
 at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:497)
 at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
 at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
 at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
 at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.NoClassDefFoundError: org/slf4j/helpers/MarkerIgnoringBase
 at java.lang.ClassLoader.defineClass1(Native Method)
 at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
 at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
 at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
 at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)
 at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
 at pl.project13.maven.git.log.MavenLoggerBridge.<init>(MavenLoggerBridge.java:37)
 at pl.project13.maven.git.GitCommitIdMojo.<init>(GitCommitIdMojo.java:331)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
 at com.google.inject.internal.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:86)
 at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:108)
 at com.google.inject.internal.ConstructorInjector.access$000(ConstructorInjector.java:32)
 at com.google.inject.internal.ConstructorInjector$1.call(ConstructorInjector.java:92)
 at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115)
 at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:133)
 at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68)
 at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:90)
 at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:269)
 at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1009)
 at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1066)
 at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1005)
 ... 42 more
Caused by: java.lang.ClassNotFoundException: org.slf4j.helpers.MarkerIgnoringBase
 at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
 ... 74 more
[ERROR] Failed to execute goal pl.project13.maven:git-commit-id-plugin:2.1.14:revision (default) on project basepom-foundation: Execution default of goal pl.project13.maven:git-commit-id-plugin:2.1.14:revision failed: Unable to load the mojo 'revision' in the plugin 'pl.project13.maven:git-commit-id-plugin:2.1.14'. A required class is missing: org/slf4j/helpers/MarkerIgnoringBase
[ERROR] -----------------------------------------------------
[ERROR] realm = plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/home/hschmiedehausen/.m2/repository/pl/project13/maven/git-commit-id-plugin/2.1.14/git-commit-id-plugin-2.1.14.jar
[ERROR] urls[1] = file:/home/hschmiedehausen/.m2/repository/javax/enterprise/cdi-api/1.0/cdi-api-1.0.jar
[ERROR] urls[2] = file:/home/hschmiedehausen/.m2/repository/javax/annotation/jsr250-api/1.0/jsr250-api-1.0.jar
[ERROR] urls[3] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/sisu/sisu-guice/3.1.0/sisu-guice-3.1.0-no_aop.jar
[ERROR] urls[4] = file:/home/hschmiedehausen/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar
[ERROR] urls[5] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/sisu/org.eclipse.sisu.inject/0.0.0.M5/org.eclipse.sisu.inject-0.0.0.M5.jar
[ERROR] urls[6] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/aether/aether-util/0.9.0.M2/aether-util-0.9.0.M2.jar
[ERROR] urls[7] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.19/plexus-interpolation-1.19.jar
[ERROR] urls[8] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-utils/3.0.15/plexus-utils-3.0.15.jar
[ERROR] urls[9] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
[ERROR] urls[10] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
[ERROR] urls[11] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
[ERROR] urls[12] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.5.1/jackson-databind-2.5.1.jar
[ERROR] urls[13] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.5.0/jackson-annotations-2.5.0.jar
[ERROR] urls[14] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.5.1/jackson-core-2.5.1.jar
[ERROR] urls[15] = file:/home/hschmiedehausen/.m2/repository/joda-time/joda-time/2.7/joda-time-2.7.jar
[ERROR] urls[16] = file:/home/hschmiedehausen/.m2/repository/com/google/guava/guava/18.0/guava-18.0.jar
[ERROR] urls[17] = file:/home/hschmiedehausen/.m2/repository/com/intellij/annotations/12.0/annotations-12.0.jar
[ERROR] urls[18] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/jgit/org.eclipse.jgit/3.7.0.201502260915-r/org.eclipse.jgit-3.7.0.201502260915-r.jar
[ERROR] urls[19] = file:/home/hschmiedehausen/.m2/repository/com/jcraft/jsch/0.1.50/jsch-0.1.50.jar
[ERROR] urls[20] = file:/home/hschmiedehausen/.m2/repository/com/googlecode/javaewah/JavaEWAH/0.7.9/JavaEWAH-0.7.9.jar
[ERROR] urls[21] = file:/home/hschmiedehausen/.m2/repository/org/apache/httpcomponents/httpclient/4.1.3/httpclient-4.1.3.jar
[ERROR] urls[22] = file:/home/hschmiedehausen/.m2/repository/org/apache/httpcomponents/httpcore/4.1.4/httpcore-4.1.4.jar
[ERROR] urls[23] = file:/home/hschmiedehausen/.m2/repository/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar
[ERROR] urls[24] = file:/home/hschmiedehausen/.m2/repository/commons-codec/commons-codec/1.4/commons-codec-1.4.jar
[ERROR] urls[25] = file:/home/hschmiedehausen/.m2/repository/org/slf4j/slf4j-simple/1.7.12/slf4j-simple-1.7.12.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]]
[ERROR] 
[ERROR] -----------------------------------------------------: org.slf4j.helpers.MarkerIgnoringBase
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal pl.project13.maven:git-commit-id-plugin:2.1.14:revision (default) on project basepom-foundation: Execution default of goal pl.project13.maven:git-commit-id-plugin:2.1.14:revision failed: Unable to load the mojo 'revision' in the plugin 'pl.project13.maven:git-commit-id-plugin:2.1.14'. A required class is missing: org/slf4j/helpers/MarkerIgnoringBase
-----------------------------------------------------
realm = plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/home/hschmiedehausen/.m2/repository/pl/project13/maven/git-commit-id-plugin/2.1.14/git-commit-id-plugin-2.1.14.jar
urls[1] = file:/home/hschmiedehausen/.m2/repository/javax/enterprise/cdi-api/1.0/cdi-api-1.0.jar
urls[2] = file:/home/hschmiedehausen/.m2/repository/javax/annotation/jsr250-api/1.0/jsr250-api-1.0.jar
urls[3] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/sisu/sisu-guice/3.1.0/sisu-guice-3.1.0-no_aop.jar
urls[4] = file:/home/hschmiedehausen/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar
urls[5] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/sisu/org.eclipse.sisu.inject/0.0.0.M5/org.eclipse.sisu.inject-0.0.0.M5.jar
urls[6] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/aether/aether-util/0.9.0.M2/aether-util-0.9.0.M2.jar
urls[7] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.19/plexus-interpolation-1.19.jar
urls[8] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-utils/3.0.15/plexus-utils-3.0.15.jar
urls[9] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
urls[10] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
urls[11] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
urls[12] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.5.1/jackson-databind-2.5.1.jar
urls[13] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.5.0/jackson-annotations-2.5.0.jar
urls[14] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.5.1/jackson-core-2.5.1.jar
urls[15] = file:/home/hschmiedehausen/.m2/repository/joda-time/joda-time/2.7/joda-time-2.7.jar
urls[16] = file:/home/hschmiedehausen/.m2/repository/com/google/guava/guava/18.0/guava-18.0.jar
urls[17] = file:/home/hschmiedehausen/.m2/repository/com/intellij/annotations/12.0/annotations-12.0.jar
urls[18] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/jgit/org.eclipse.jgit/3.7.0.201502260915-r/org.eclipse.jgit-3.7.0.201502260915-r.jar
urls[19] = file:/home/hschmiedehausen/.m2/repository/com/jcraft/jsch/0.1.50/jsch-0.1.50.jar
urls[20] = file:/home/hschmiedehausen/.m2/repository/com/googlecode/javaewah/JavaEWAH/0.7.9/JavaEWAH-0.7.9.jar
urls[21] = file:/home/hschmiedehausen/.m2/repository/org/apache/httpcomponents/httpclient/4.1.3/httpclient-4.1.3.jar
urls[22] = file:/home/hschmiedehausen/.m2/repository/org/apache/httpcomponents/httpcore/4.1.4/httpcore-4.1.4.jar
urls[23] = file:/home/hschmiedehausen/.m2/repository/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar
urls[24] = file:/home/hschmiedehausen/.m2/repository/commons-codec/commons-codec/1.4/commons-codec-1.4.jar
urls[25] = file:/home/hschmiedehausen/.m2/repository/org/slf4j/slf4j-simple/1.7.12/slf4j-simple-1.7.12.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:224)
 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:116)
 at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
 at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
 at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
 at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
 at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
 at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
 at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)
 at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)
 at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:497)
 at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
 at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
 at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
 at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default of goal pl.project13.maven:git-commit-id-plugin:2.1.14:revision failed: Unable to load the mojo 'revision' in the plugin 'pl.project13.maven:git-commit-id-plugin:2.1.14'. A required class is missing: org/slf4j/helpers/MarkerIgnoringBase
-----------------------------------------------------
realm = plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/home/hschmiedehausen/.m2/repository/pl/project13/maven/git-commit-id-plugin/2.1.14/git-commit-id-plugin-2.1.14.jar
urls[1] = file:/home/hschmiedehausen/.m2/repository/javax/enterprise/cdi-api/1.0/cdi-api-1.0.jar
urls[2] = file:/home/hschmiedehausen/.m2/repository/javax/annotation/jsr250-api/1.0/jsr250-api-1.0.jar
urls[3] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/sisu/sisu-guice/3.1.0/sisu-guice-3.1.0-no_aop.jar
urls[4] = file:/home/hschmiedehausen/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar
urls[5] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/sisu/org.eclipse.sisu.inject/0.0.0.M5/org.eclipse.sisu.inject-0.0.0.M5.jar
urls[6] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/aether/aether-util/0.9.0.M2/aether-util-0.9.0.M2.jar
urls[7] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.19/plexus-interpolation-1.19.jar
urls[8] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-utils/3.0.15/plexus-utils-3.0.15.jar
urls[9] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
urls[10] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
urls[11] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
urls[12] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.5.1/jackson-databind-2.5.1.jar
urls[13] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.5.0/jackson-annotations-2.5.0.jar
urls[14] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.5.1/jackson-core-2.5.1.jar
urls[15] = file:/home/hschmiedehausen/.m2/repository/joda-time/joda-time/2.7/joda-time-2.7.jar
urls[16] = file:/home/hschmiedehausen/.m2/repository/com/google/guava/guava/18.0/guava-18.0.jar
urls[17] = file:/home/hschmiedehausen/.m2/repository/com/intellij/annotations/12.0/annotations-12.0.jar
urls[18] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/jgit/org.eclipse.jgit/3.7.0.201502260915-r/org.eclipse.jgit-3.7.0.201502260915-r.jar
urls[19] = file:/home/hschmiedehausen/.m2/repository/com/jcraft/jsch/0.1.50/jsch-0.1.50.jar
urls[20] = file:/home/hschmiedehausen/.m2/repository/com/googlecode/javaewah/JavaEWAH/0.7.9/JavaEWAH-0.7.9.jar
urls[21] = file:/home/hschmiedehausen/.m2/repository/org/apache/httpcomponents/httpclient/4.1.3/httpclient-4.1.3.jar
urls[22] = file:/home/hschmiedehausen/.m2/repository/org/apache/httpcomponents/httpcore/4.1.4/httpcore-4.1.4.jar
urls[23] = file:/home/hschmiedehausen/.m2/repository/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar
urls[24] = file:/home/hschmiedehausen/.m2/repository/commons-codec/commons-codec/1.4/commons-codec-1.4.jar
urls[25] = file:/home/hschmiedehausen/.m2/repository/org/slf4j/slf4j-simple/1.7.12/slf4j-simple-1.7.12.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:153)
 at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
 ... 20 more
Caused by: org.apache.maven.plugin.PluginContainerException: Unable to load the mojo 'revision' in the plugin 'pl.project13.maven:git-commit-id-plugin:2.1.14'. A required class is missing: org/slf4j/helpers/MarkerIgnoringBase
-----------------------------------------------------
realm = plugin>pl.project13.maven:git-commit-id-plugin:2.1.14
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/home/hschmiedehausen/.m2/repository/pl/project13/maven/git-commit-id-plugin/2.1.14/git-commit-id-plugin-2.1.14.jar
urls[1] = file:/home/hschmiedehausen/.m2/repository/javax/enterprise/cdi-api/1.0/cdi-api-1.0.jar
urls[2] = file:/home/hschmiedehausen/.m2/repository/javax/annotation/jsr250-api/1.0/jsr250-api-1.0.jar
urls[3] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/sisu/sisu-guice/3.1.0/sisu-guice-3.1.0-no_aop.jar
urls[4] = file:/home/hschmiedehausen/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar
urls[5] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/sisu/org.eclipse.sisu.inject/0.0.0.M5/org.eclipse.sisu.inject-0.0.0.M5.jar
urls[6] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/aether/aether-util/0.9.0.M2/aether-util-0.9.0.M2.jar
urls[7] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.19/plexus-interpolation-1.19.jar
urls[8] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-utils/3.0.15/plexus-utils-3.0.15.jar
urls[9] = file:/home/hschmiedehausen/.m2/repository/org/codehaus/plexus/plexus-component-annotations/1.5.5/plexus-component-annotations-1.5.5.jar
urls[10] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/plexus/plexus-sec-dispatcher/1.3/plexus-sec-dispatcher-1.3.jar
urls[11] = file:/home/hschmiedehausen/.m2/repository/org/sonatype/plexus/plexus-cipher/1.4/plexus-cipher-1.4.jar
urls[12] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.5.1/jackson-databind-2.5.1.jar
urls[13] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.5.0/jackson-annotations-2.5.0.jar
urls[14] = file:/home/hschmiedehausen/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.5.1/jackson-core-2.5.1.jar
urls[15] = file:/home/hschmiedehausen/.m2/repository/joda-time/joda-time/2.7/joda-time-2.7.jar
urls[16] = file:/home/hschmiedehausen/.m2/repository/com/google/guava/guava/18.0/guava-18.0.jar
urls[17] = file:/home/hschmiedehausen/.m2/repository/com/intellij/annotations/12.0/annotations-12.0.jar
urls[18] = file:/home/hschmiedehausen/.m2/repository/org/eclipse/jgit/org.eclipse.jgit/3.7.0.201502260915-r/org.eclipse.jgit-3.7.0.201502260915-r.jar
urls[19] = file:/home/hschmiedehausen/.m2/repository/com/jcraft/jsch/0.1.50/jsch-0.1.50.jar
urls[20] = file:/home/hschmiedehausen/.m2/repository/com/googlecode/javaewah/JavaEWAH/0.7.9/JavaEWAH-0.7.9.jar
urls[21] = file:/home/hschmiedehausen/.m2/repository/org/apache/httpcomponents/httpclient/4.1.3/httpclient-4.1.3.jar
urls[22] = file:/home/hschmiedehausen/.m2/repository/org/apache/httpcomponents/httpcore/4.1.4/httpcore-4.1.4.jar
urls[23] = file:/home/hschmiedehausen/.m2/repository/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar
urls[24] = file:/home/hschmiedehausen/.m2/repository/commons-codec/commons-codec/1.4/commons-codec-1.4.jar
urls[25] = file:/home/hschmiedehausen/.m2/repository/org/slf4j/slf4j-simple/1.7.12/slf4j-simple-1.7.12.jar
Number of foreign imports: 1
import: Entry[import from realm ClassRealm[maven.api, parent: null]]

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

 at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:565)
 at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:121)
 ... 21 more
Caused by: java.lang.NoClassDefFoundError: org/slf4j/helpers/MarkerIgnoringBase
 at java.lang.ClassLoader.defineClass1(Native Method)
 at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
 at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
 at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
 at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)
 at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
 at pl.project13.maven.git.log.MavenLoggerBridge.<init>(MavenLoggerBridge.java:37)
 at pl.project13.maven.git.GitCommitIdMojo.<init>(GitCommitIdMojo.java:331)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
 at com.google.inject.internal.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:86)
 at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:108)
 at com.google.inject.internal.ConstructorInjector.access$000(ConstructorInjector.java:32)
 at com.google.inject.internal.ConstructorInjector$1.call(ConstructorInjector.java:92)
 at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115)
 at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:133)
 at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68)
 at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:90)
 at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:269)
 at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1009)
 at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1066)
 at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1005)
 at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1044)
 at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48)
 at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:86)
 at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:54)
 at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:70)
 at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115)
 at org.eclipse.sisu.bean.BeanScheduler$Activator.onProvision(BeanScheduler.java:176)
 at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:126)
 at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68)
 at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:68)
 at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:46)
 at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1009)
 at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1059)
 at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1005)
 at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:36)
 at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81)
 at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
 at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:263)
 at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:255)
 at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:546)
 ... 22 more
Caused by: java.lang.ClassNotFoundException: org.slf4j.helpers.MarkerIgnoringBase
 at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
 ... 74 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/PluginContainerException
(END)

[hgschmie]

2.1.13 is unaffected.

[ktoso]

Thanks for reporting. Closing as duplicate though as it was reported and is fixed already :-)
See: #197

We'll cut a 2.1.15 soon

[hgschmie]

that is kind of a simpler fix:

diff --git a/pom.xml b/pom.xml
index 9844749..666b2d8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -72,7 +72,7 @@
 <maven-plugin-api.version>3.1.1</maven-plugin-api.version>

 <jgit.version>3.7.0.201502260915-r</jgit.version>
- <slf4j.version>1.7.12</slf4j.version>
+ <slf4j.version>1.7.5</slf4j.version>
 <junit.version>4.12</junit.version>
 <mockito.version>2.0.5-beta</mockito.version>

[ktoso]

Good to know, I did not research that problem in depth. Can you confirm this solves the issue?
Maybe we could revert the far-jar-ing and just downgrade slf then

// cc @TheSnoozer

[hgschmie]

the problem is that by enforcing a later version of the appender, you are no longer compatible to the older version of the slf4j api (which is provided by the core class loader). Maven behaves absolutely correct, the bug is in the plugin. You can not use a newer version of slf4j.

Any version of Apache Maven since 3.1.1 ships slf4j 1.7.5

[hgschmie]

Yes. Building a 1.7.5-SNAPSHOT with the 1.7.5 slf4j API and appender jar fixes the problem for me.

[ktoso]

Thanks for checking! Sounds like a much simpler solution to the problem at hand, what about it @TheSnoozer - shall we revert the fat-jar, downgrade the dependency and release?

[hgschmie]

if you use a fat jar, you are still at the mercy of the class loader (if it does parent-first, you will still get the classes from the core, not the ones from your fatjar).

[hgschmie]

maybe add a comment to the line explainingn why this is 1.7.5 and why it should not be changed. Otherwise, you will get pull requests on a regular base wanting to update this dependency. :-)

[ktoso]

Yeah, I thought we're also repackaging (which solves the classloading order issue) but we don't.
So the problem isn't really solved yet. I'd want to get an ACK from Snoozer and we'll go ahead with your proposed fix @hgschmie, thanks a lot for bringing it up!

maybe add a comment to the line explainingn why this is 1.7.5 and why it should not be changed.
Otherwise, you will get pull requests on a regular base wanting to update this dependency. :-)

Good hint, I concur.

[hgschmie]

hmhm, wait a bit, I wasn't aware that the fatjar fix is already in the code base...

[ktoso]

Yes but not released, see previously linked PR

[hgschmie]

So, I am sorry, but I retract my previous statement. I wasn't aware of the fatjar packaging which made this work for me. The good news is that the class loaders for maven plugins seem to use child first behavior (which is what you want).

The actual fix is a bigger one and it is outlined here: eirslett/frontend-maven-plugin#178 (this is the fix for another plugin).

In a nut shell: You should rip out all your custom logging code, use slf4j directly (which is provided by the maven core from 3.1.0 onwards) and not look back. I tried to see if I could come up with a patch but the loggerbridge stuff is so deeply entwined with the commands that I can not fix that in 10 minutes so I ran out of time.

again, sorry, simply keep the fatjar solution (which will work at least for now) but you should consider looking into a fix as the one outlined for the frontend plugin. :-)

[TheSnoozer]

Hi folks,
I'll check if downgrading the slf4j-version to <slf4j.version>1.7.5</slf4j.version> fixes the problem.
Keep you updated in a minute. If it fixes the problem I would say keep the jar-jaring out of the plugin this is a kind of nasty workaround.
I saw the PR in eirslett/frontend-maven-plugin#178 but to be honest it's not obvious why this fixes the slfj4 Class NoDef-Found Problem...;)
Right under the suggest Fix there is a comment

Thanks for the hint [to the patch]. I have inspected the patch, but this isn't really a fix. At best, it's a workaround which I suspect to break on any other use of the SLF4J API in the plugin.

Edit:
Just downgraded to <slf4j.version>1.7.5</slf4j.version> and removed the shade-plugin.
The execution with

mvn clean install -Dmaven.test.skip=true && mvn clean package -Dmaven.test.skip=true -Pdemo

fails:

[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]]
[ERROR] 
[ERROR] -----------------------------------------------------: org.slf4j.helpers.MarkerIgnoringBase
[ERROR] -> [Help 1]

Using:

Apache Maven 3.3.3 (7994120775791599e205a5524ec3e0dfe41d4a06; 2015-04-22T13:57:37+02:00)
Maven home: /usr/share/maven-3.3.3
Java version: 1.7.0_80, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-7-oracle/jre
Default locale: de_DE, platform encoding: UTF-8
OS name: "linux", version: "3.16.0-33-generic", arch: "amd64", family: "unix"

Anything wrong in my setup?

--- a/pom.xml
+++ b/pom.xml
@@ -72,7 +72,7 @@
 <maven-plugin-api.version>3.1.1</maven-plugin-api.version>

 <jgit.version>3.7.0.201502260915-r</jgit.version>
- <slf4j.version>1.7.12</slf4j.version>
+ <slf4j.version>1.7.5</slf4j.version>
 <junit.version>4.12</junit.version>
 <mockito.version>2.0.5-beta</mockito.version>

@@ -212,34 +212,6 @@
 <target>${java.target}</target>
 </configuration>
 </plugin>
- <!-- we need to create a uber-jar for https://github.com/ktoso/maven-git-commit-id-plugin/issues/196 -->
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-shade-plugin</artifactId>
- <version>2.3</version>
- <executions>
- <execution>
- <phase>package</phase>
- <goals>
- <goal>shade</goal>
- </goals>
- <configuration>
- <createDependencyReducedPom>false</createDependencyReducedPom>
- <transformers>
- <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
- <mainClass>pl.project13.maven.git.GitCommitIdMojo</mainClass>
- </transformer>
- </transformers>
- <artifactSet>
- <includes>
- <include>org.slf4j:*</include>
- </includes>
- </artifactSet>
- </configuration>
- </execution>
- </executions>
- </plugin>
-

Edit 2:
The fix from eirslett/frontend-maven-plugin#178 may solved the class-loading issue, however they ignore -Dorg.slf4j.simplfaultLogLevel=warn (see #191).