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Michael Osipov commented on MPIR-247: ------------------------------------- [~hboutemy], I have created a [branch|https://svn.apache.org/repos/asf/maven/plugins/branches/MPIR-247] now, please have a look. > "Comparison method violates its general contract!" while generating site > ------------------------------------------------------------------------ > > Key: MPIR-247 > URL: https://jira.codehaus.org/browse/MPIR-247 > Project: Maven Project Info Reports Plugin > Issue Type: Bug > Components: dependency-management > Affects Versions: 2.4 > Environment: java version "1.7.0_04" > Java(TM) SE Runtime Environment (build 1.7.0_04-b20) > Java HotSpot(TM) 64-Bit Server VM (build 23.0-b21, mixed mode) > maven 3.0.4 > Reporter: Mirek Hankus > Assignee: Michael Osipov > Fix For: 2.8 > > > While generating site, I'm getting exception as follows. > {code} > message : Failed to execute goal > org.apache.maven.plugins:maven-site-plugin:3.1:site (default-site) on project > netpr-aggregator: Execution default-site of goal > org.apache.maven.plugins:maven-site-plugin:3.1:site failed: Comparison method > violates its general contract! > cause : Execution default-site of goal > org.apache.maven.plugins:maven-site-plugin:3.1:site failed: Comparison method > violates its general contract! > Stack trace : > org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute > goal org.apache.maven.plugins:maven-site-plugin:3.1:site (default-site) on > project netpr-aggregator: Execution default-site of goal > org.apache.maven.plugins:maven-site-plugin:3.1:site failed: Comparison method > violates its general contract! > 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-site of goal org.apache.maven.plugins:maven-site-plugin:3.1:site > failed: Comparison method violates its general contract! > at > org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110) > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) > ... 27 more > Caused by: java.lang.IllegalArgumentException: Comparison method violates its > general contract! > at java.util.ComparableTimSort.mergeHi(ComparableTimSort.java:835) > at java.util.ComparableTimSort.mergeAt(ComparableTimSort.java:453) > at java.util.ComparableTimSort.mergeCollapse(ComparableTimSort.java:376) > at java.util.ComparableTimSort.sort(ComparableTimSort.java:182) > at java.util.ComparableTimSort.sort(ComparableTimSort.java:146) > at java.util.Arrays.sort(Arrays.java:472) > at java.util.Collections.sort(Collections.java:155) > at > org.apache.maven.report.projectinfo.dependencies.renderer.DependencyManagementRenderer.getDependencyRow(DependencyManagementRenderer.java:228) > at > org.apache.maven.report.projectinfo.dependencies.renderer.DependencyManagementRenderer.renderDependenciesForScope(DependencyManagementRenderer.java:204) > at > org.apache.maven.report.projectinfo.dependencies.renderer.DependencyManagementRenderer.renderDependenciesForAllScopes(DependencyManagementRenderer.java:153) > at > org.apache.maven.report.projectinfo.dependencies.renderer.DependencyManagementRenderer.renderSectionProjectDependencies(DependencyManagementRenderer.java:146) > at > org.apache.maven.report.projectinfo.dependencies.renderer.DependencyManagementRenderer.renderBody(DependencyManagementRenderer.java:132) > at > org.apache.maven.reporting.AbstractMavenReportRenderer.render(AbstractMavenReportRenderer.java:79) > at > org.apache.maven.report.projectinfo.DependencyManagementReport.executeReport(DependencyManagementReport.java:116) > at > org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:190) > at > org.apache.maven.plugins.site.ReportDocumentRenderer.renderDocument(ReportDocumentRenderer.java:219) > at > org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:319) > at > org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:135) > at > org.apache.maven.plugins.site.SiteMojo.renderLocale(SiteMojo.java:175) > at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:138) > at > org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) > ... 28 more > {code} -- This message was sent by Atlassian JIRA (v6.1.6#6162)