After upgrade to libwagon2-java 2.12, maven crashes when attempting to build any project

[Michael Marley]

After I upgraded to libwagon2-java 2.12 on Artful, I get the following error and stacktrace when trying to build any project in Maven (installed using apt):

[WARNING] Error injecting: org.apache.maven.wagon.providers.http.HttpWagon$__sisu1
java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
        at org.apache.maven.wagon.providers.http.httpclient.conn.ssl.AbstractVerifier.<init>(AbstractVerifier.java:60)
        at org.apache.maven.wagon.providers.http.httpclient.conn.ssl.AllowAllHostnameVerifier.<init>(AllowAllHostnameVerifier.java:44)
        at org.apache.maven.wagon.providers.http.httpclient.conn.ssl.AllowAllHostnameVerifier.<clinit>(AllowAllHostnameVerifier.java:46)
        at org.apache.maven.wagon.providers.http.httpclient.conn.ssl.SSLConnectionSocketFactory.<clinit>(SSLConnectionSocketFactory.java:145)
        at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.createConnManager(AbstractHttpClientWagon.java:348)
        at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.<clinit>(AbstractHttpClientWagon.java:274)
        at org.apache.maven.wagon.providers.http.HttpWagon$__sisu1$$FastClassByGuice$$fd3b369a.newInstance(<generated>)
        at com.google.inject.internal.cglib.reflect.$FastConstructor.newInstance(FastConstructor.java:40)
        at com.google.inject.internal.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:61)
        at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:105)
        at com.google.inject.internal.ConstructorInjector.access$000(ConstructorInjector.java:32)
        at com.google.inject.internal.ConstructorInjector$1.call(ConstructorInjector.java:89)
        at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115)
        at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:133)
        at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68)
        at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:87)
        at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:267)
        at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016)
        at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
        at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012)
        at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051)
        at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48)
        at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
        at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53)
        at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:65)
        at com.google.inject.internal.ProvisionListenerStackCallback$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:63)
        at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)
        at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016)
        at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
        at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012)
        at org.eclipse.sisu.inject.Guice4$1.get(Guice4.java:162)
        at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81)
        at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51)
        at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:263)
        at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:255)
        at org.eclipse.aether.internal.transport.wagon.PlexusWagonProvider.lookup(PlexusWagonProvider.java:58)
        at org.eclipse.aether.transport.wagon.WagonTransporter.lookupWagon(WagonTransporter.java:271)
        at org.eclipse.aether.transport.wagon.WagonTransporter.<init>(WagonTransporter.java:115)
        at org.eclipse.aether.transport.wagon.WagonTransporterFactory.newInstance(WagonTransporterFactory.java:127)
        at org.eclipse.aether.internal.impl.DefaultTransporterProvider.newTransporter(DefaultTransporterProvider.java:110)
        at org.eclipse.aether.connector.basic.BasicRepositoryConnector.<init>(BasicRepositoryConnector.java:115)
        at org.eclipse.aether.connector.basic.BasicRepositoryConnectorFactory.newInstance(BasicRepositoryConnectorFactory.java:180)
        at org.eclipse.aether.internal.impl.DefaultRepositoryConnectorProvider.newRepositoryConnector(DefaultRepositoryConnectorProvider.java:113)
        at org.eclipse.aether.internal.impl.DefaultMetadataResolver$ResolveTask.run(DefaultMetadataResolver.java:603)
        at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:67)
        at org.eclipse.aether.internal.impl.DefaultMetadataResolver$1.execute(DefaultMetadataResolver.java:527)
        at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolve(DefaultMetadataResolver.java:382)
        at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolveMetadata(DefaultMetadataResolver.java:205)
        at org.apache.maven.repository.internal.DefaultVersionResolver.resolveVersion(DefaultVersionResolver.java:237)
        at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:231)
        at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:198)
        at org.eclipse.aether.internal.impl.DefaultDependencyCollector.resolveCachedArtifactDescriptor(DefaultDependencyCollector.java:535)
        at org.eclipse.aether.internal.impl.DefaultDependencyCollector.getArtifactDescriptorResult(DefaultDependencyCollector.java:519)
        at org.eclipse.aether.internal.impl.DefaultDependencyCollector.processDependency(DefaultDependencyCollector.java:409)
        at org.eclipse.aether.internal.impl.DefaultDependencyCollector.processDependency(DefaultDependencyCollector.java:363)
        at org.eclipse.aether.internal.impl.DefaultDependencyCollector.process(DefaultDependencyCollector.java:351)
        at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:254)
        at org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:316)
        at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:172)
        at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:195)
        at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:128)
        at org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:245)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:199)
        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:863)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
        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:498)
        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.ClassNotFoundException: org.apache.commons.logging.LogFactory
        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)
        ... 87 more

Reverting back to 2.10 causes the error to go away and the build to run correctly.

[Hans Joachim Desserud (hjd)]

Thanks for taking your time to report this issue and help making Ubuntu better.

I get the same error message when attempting to build a project with Maven on artful now.

It should be noted that there's a newer version of maven packaged (https://launchpad.net/ubuntu/+source/maven), which should hopefully build soon. (The remaining missing build dependency was just synced) I'm not quite sure what the underlying cause for this issue is, but I wonder if the newer maven might be more compatible with this version of libwagon2-java. If the issue persists, I'll look more into this.

[Hans Joachim Desserud (hjd)]

Now that maven 3.5 is available in artful, I am no longer able to reproduce this issue. There might be some interdependencies between wagon2 and maven, but it seems to have been resolved. If you can verify that maven works for you as well with the latest upgrades, I believe this can be marked fix released.

[Michael Marley (mamarley)]

Confirmed; after the update to Maven 3.5, everything builds correctly again. Thanks!