[MNG-5779] NoClassDefFoundError: org/slf4j/spi/LocationAwareLogger when generating javadoc during site reporting

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.1
• Component/s: Class Loading
• Assignee: Jason van Zyl
• Reporter: Herve Boutemy
• Created: 04/Mar/15 01:43
• Updated: 28/Mar/20 14:58
• Resolved: 05/Mar/15 12:44

Description

issue found while working on another topic: https://github.com/apache/maven/pull/32#issuecomment-76933957

when running m-site-p ITs, following issue happen with m-javadoc-p too (without failing the build): see full-reporting IT output log:

[INFO] Generating "JavaDocs" report             --- maven-javadoc-plugin:2.9.1:javadoc
[DEBUG] Trying to add links for dependencies...
[WARNING] An issue has occurred with maven-javadoc-plugin:2.9.1:javadoc, skipping LinkageError org/slf4j/spi/LocationAwareLogger, please report an issue to Maven dev team.
java.lang.NoClassDefFoundError: org/slf4j/spi/LocationAwareLogger
	at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:156)
	at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:131)
	at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:272)
	at org.apache.http.impl.conn.PoolingClientConnectionManager.<init>(PoolingClientConnectionManager.java:73)
	at org.apache.http.impl.conn.PoolingClientConnectionManager.<init>(PoolingClientConnectionManager.java:99)
	at org.apache.http.impl.conn.PoolingClientConnectionManager.<init>(PoolingClientConnectionManager.java:85)
	at org.apache.http.impl.conn.PoolingClientConnectionManager.<init>(PoolingClientConnectionManager.java:93)
	at org.apache.maven.plugin.javadoc.JavadocUtil.createHttpClient(JavadocUtil.java:1811)
	at org.apache.maven.plugin.javadoc.JavadocUtil.isValidPackageList(JavadocUtil.java:1704)
	at org.apache.maven.plugin.javadoc.AbstractJavadocMojo.isValidJavadocLink(AbstractJavadocMojo.java:5638)
	at org.apache.maven.plugin.javadoc.AbstractJavadocMojo.getDependenciesLinks(AbstractJavadocMojo.java:5480)
	at org.apache.maven.plugin.javadoc.AbstractJavadocMojo.collectLinks(AbstractJavadocMojo.java:2960)
	at org.apache.maven.plugin.javadoc.AbstractJavadocMojo.addLinkArguments(AbstractJavadocMojo.java:3921)
	at org.apache.maven.plugin.javadoc.AbstractJavadocMojo.addStandardDocletOptions(AbstractJavadocMojo.java:4676)
	at org.apache.maven.plugin.javadoc.AbstractJavadocMojo.executeReport(AbstractJavadocMojo.java:1954)
	at org.apache.maven.plugin.javadoc.JavadocReport.generate(JavadocReport.java:130)
	at org.apache.maven.plugins.site.render.ReportDocumentRenderer.renderDocument(ReportDocumentRenderer.java:236)
	at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:311)
	at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:129)
	at org.apache.maven.plugins.site.render.SiteMojo.renderLocale(SiteMojo.java:182)
	at org.apache.maven.plugins.site.render.SiteMojo.execute(SiteMojo.java:141)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
	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:851)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:275)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:186)
	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:606)
	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.slf4j.spi.LocationAwareLogger
	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)
	... 43 more

Issue Links

• is related to: MNG-5771 improved user-configurable core extensions mechanism
• relates to: MNG-5783 cobertura-maven-plugin:instrument failing NoClassDefFoundError: org/slf4j/LoggerFactory