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  1. Maven
  2. MNG-7511

Ensure the degreeOfConcurrency is a positive number in MavenExecutionRequest

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 3.8.6
    • 3.8.8, 3.9.0, 4.0.0-alpha-2, 4.0.0
    • Core
    • None

    Description

      The degreeOfConcurrency should always be a positive number, otherwise builds might fail.

      In Hazelcast we build with threads set to -T 0.5C in .mvn/maven.config.
      This is fine until we run the build on a single CPU machine. It fails then with IllegalArgumentException as the computed degreeOfConcurrency == 0.

      Stacktrace from Maven 3.6.3:

      [ERROR] IllegalArgumentException
      java.lang.IllegalArgumentException
          at java.util.concurrent.ThreadPoolExecutor.<init> (ThreadPoolExecutor.java:1293)
          at java.util.concurrent.ThreadPoolExecutor.<init> (ThreadPoolExecutor.java:1215)
          at java.util.concurrent.Executors.newFixedThreadPool (Executors.java:155)
          at org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder.build (MultiThreadedBuilder.java:88)
          at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
          at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
          at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
          at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
          at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
          at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
          at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
          at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
          at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
          at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
          at java.lang.reflect.Method.invoke (Method.java:566)
          at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
          at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
          at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
          at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
      

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            michael-o Michael Osipov
            kwart Josef Cacek
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            Dates

              Created:
              Updated:
              Resolved: