meiMingle opened a new issue, #902: URL: https://github.com/apache/maven-mvnd/issues/902
Recently I upgraded mvnd from 0.9.0 to 1.0-m8. However, the build often fails. Although it does not fail every time, there is at least one fifth chance of failure with errors similar to the following. . > [ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources (default-resources) on project cap-app-schema: Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources failed. ConcurrentModificationException -> [Help 1]org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources (default-resources) on project cap-app-schema: Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources failed. at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:333) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174) at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75) at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162) at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105) at io.takari.maven.builder.smart.SmartBuilderImpl.buildProject (SmartBuilderImpl.java:209) at io.takari.maven.builder.smart.SmartBuilderImpl$ProjectBuildTask.run (SmartBuilderImpl.java:81) at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511) at java.util.concurrent.FutureTask.run (FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624) at java.lang.Thread.run (Thread.java:750) Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources failed. at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:133) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174) at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75) at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162) at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105) at io.takari.maven.builder.smart.SmartBuilderImpl.buildProject (SmartBuilderImpl.java:209) at io.takari.maven.builder.smart.SmartBuilderImpl$ProjectBuildTask.run (SmartBuilderImpl.java:81) at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511) at java.util.concurrent.FutureTask.run (FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624) at java.lang.Thread.run (Thread.java:750) Caused by: java.util.ConcurrentModificationException at java.util.Hashtable$Enumerator.next (Hashtable.java:1408) at java.util.Hashtable.putAll (Hashtable.java:523) at org.apache.maven.shared.filtering.DefaultMavenFileFilter.getDefaultFilterWrappers (DefaultMavenFileFilter.java:198) at org.apache.maven.shared.filtering.DefaultMavenResourcesFiltering.filterResources (DefaultMavenResourcesFiltering.java:161) at org.apache.maven.plugin.resources.ResourcesMojo.execute (ResourcesMojo.java:301) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:126) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174) at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75) at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162) at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105) at io.takari.maven.builder.smart.SmartBuilderImpl.buildProject (SmartBuilderImpl.java:209) at io.takari.maven.builder.smart.SmartBuilderImpl$ProjectBuildTask.run (SmartBuilderImpl.java:81) at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511) at java.util.concurrent.FutureTask.run (FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624) at java.lang.Thread.run (Thread.java:750) [ERROR] 992[ERROR] Re-run Maven using the -X switch to enable full debug logging. 993[ERROR] 994[ERROR] For more information about the errors and possible solutions, please read the following articles: 995[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException 996[ERROR] 997[ERROR] After correcting the problems, you can resume the build with the command 998[ERROR] mvn <args> -r -- This is an automated message from the Apache Git Service. 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