Can not execute Sonar: Fail to decorate

I installed a sonar server on my own pc (Windows XP), and I deployed sonar on Tomcat with a MySQL database. I successfully analysed an old project. But with my current project, I get this exception when trying to execute `mvn sonar:sonar`: EDIT: ``` [INFO] [14:39:37.254] Sensor CoberturaSensor done: 218 ms [INFO] [14:39:37.254] Sensor Maven dependencies... [INFO] [14:39:41.426] Sensor Maven dependencies done: 4172 ms [INFO] [14:39:41.848] Execute decorators... [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1:53.354s [INFO] Finished at: Tue May 15 14:39:43 CEST 2012 [INFO] Final Memory: 21M/138M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.codehaus.mojo:sonar-maven-plugin:2.0:sonar (d efault-cli) on project XXX: Can not execute Sonar: Fail to decorate 'com.myPackage .myClass': 793 -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal o rg.codehaus.mojo:sonar-maven-plugin:2.0:sonar (default-cli) on project XXX: Can not execute Sonar at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor .java:217) 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.buildProje ct(LifecycleModuleBuilder.java:84) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje ct(LifecycleModuleBuilder.java:59) at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBu ild(LifecycleStarter.java:183) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(Lifecycl eStarter.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:537) 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(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Laun cher.java:290) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.jav a:230) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(La uncher.java:409) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java: 352) Caused by: org.apache.maven.plugin.MojoExecutionException: Can not execute Sonar at org.codehaus.mojo.sonar.Bootstraper.executeMojo(Bootstraper.java:118) at org.codehaus.mojo.sonar.Bootstraper.start(Bootstraper.java:65) at org.codehaus.mojo.sonar.SonarMojo.execute(SonarMojo.java:90) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(Default BuildPluginManager.java:101) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor .java:209) ... 19 more Caused by: org.sonar.api.utils.SonarException: Fail to decorate 'com.myPackage.myClass ' at org.sonar.batch.phases.DecoratorsExecutor.executeDecorator(Decorators Executor.java:84) at org.sonar.batch.phases.DecoratorsExecutor.decorateResource(Decorators Executor.java:70) at org.sonar.batch.phases.DecoratorsExecutor.decorateResource(Decorators Executor.java:63) at org.sonar.batch.phases.DecoratorsExecutor.decorateResource(Decorators Executor.java:63) at org.sonar.batch.phases.DecoratorsExecutor.execute(DecoratorsExecutor. java:55) at org.sonar.batch.phases.Phases.execute(Phases.java:94) at org.sonar.batch.bootstrap.ProjectModule.doStart(ProjectModule.java:14 3) at org.sonar.batch.bootstrap.Module.start(Module.java:83) at org.sonar.batch.bootstrap.BatchModule.analyze(BatchModule.java:115) at org.sonar.batch.bootstrap.BatchModule.doStart(BatchModule.java:105) at org.sonar.batch.bootstrap.Module.start(Module.java:83) at org.sonar.batch.bootstrap.BootstrapModule.doStart(BootstrapModule.jav a:109) at org.sonar.batch.bootstrap.Module.start(Module.java:83) at org.sonar.batch.bootstrapper.Batch.startBatch(Batch.java:72) at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:59) at org.sonar.maven3.SonarMojo.execute(SonarMojo.java:143) at org.codehaus.mojo.sonar.Bootstraper.executeMojo(Bootstraper.java:113) ... 23 more Caused by: java.lang.ArrayIndexOutOfBoundsException: 793 at org.sonar.plugins.core.timemachine.tracking.HashedSequenceComparator. equals(HashedSequenceComparator.java:34) at org.sonar.plugins.core.timemachine.ViolationTrackingBlocksRecognizer. computeLengthOfMaximalBlock(ViolationTrackingBlocksRecognizer.java:48) at org.sonar.plugins.core.timemachine.ViolationTrackingDecorator.mapViol ations(ViolationTrackingDecorator.java:130) at org.sonar.plugins.core.timemachine.ViolationTrackingDecorator.decorat e(ViolationTrackingDecorator.java:70) at org.sonar.batch.phases.DecoratorsExecutor.executeDecorator(Decorators Executor.java:79) ... 39 more ``` I don't understand where the problem comes from. Please anyone have an answer? Can it come from my POM configuration? PS: the command lines `mvn clean install` and `mvn site` work correctly...