[jira] [Created] (MJAVADOC-543) Archiving to jar is very slow

["Claes Nordmark (JIRA)" <ji...@apache.org>]

Claes Nordmark created MJAVADOC-543:
---------------------------------------

             Summary: Archiving to jar is very slow
                 Key: MJAVADOC-543
                 URL: https://issues.apache.org/jira/browse/MJAVADOC-543
             Project: Maven Javadoc Plugin
          Issue Type: Bug
    Affects Versions: 3.0.1
         Environment: Redhat7
            Reporter: Claes Nordmark


Doing a stackdump while "maven-javadoc-plugin:3.0.1:jar (attach-javadoc)" shows thread spending a lot of time in UnixNativeDispatcher.getgrgid.

This was not visible in java 8 and javadoc plugin version 2.4.

Our previous build time has been increased from 5min to 3h 30min.

Tested version Java 11 and 3.0.1 of maven-javadoc-plugin

maven config:


 
{code:java}
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>3.0.1</version>
<executions>
  <execution>
    <id>attach-javadocs</id>
    <goals>
      <goal>jar</goal>
    </goals>
    <configuration>
      <failOnError>false</failOnError>
    </configuration>
    </execution>
  </executions>
</plugin>{code}
 

{{java.lang.Thread.State: RUNNABLE}}
{{ at sun.nio.fs.UnixNativeDispatcher.getgrgid(java.base@11/Native Method)}}
{{ at sun.nio.fs.UnixUserPrincipals.fromGid(java.base@11/UnixUserPrincipals.java:129)}}
{{ at sun.nio.fs.UnixFileAttributes.group(java.base@11/UnixFileAttributes.java:208)}}
{{ - locked <0x00000006a2fe0f40> (a sun.nio.fs.UnixFileAttributes)}}
{{ at sun.nio.fs.UnixFileAttributeViews$Posix.addRequestedPosixAttributes(java.base@11/UnixFileAttributeViews.java:214)}}
{{ at sun.nio.fs.UnixFileAttributeViews$Unix.readAttributes(java.base@11/UnixFileAttributeViews.java:362)}}
{{ at sun.nio.fs.AbstractFileSystemProvider.readAttributes(java.base@11/AbstractFileSystemProvider.java:94)}}
{{ at java.nio.file.Files.readAttributes(java.base@11/Files.java:1996)}}
{{ at org.codehaus.plexus.components.io.attributes.FileAttributes.<init>(FileAttributes.java:67)}}
{{ at org.codehaus.plexus.components.io.resources.PlexusIoFileResourceCollection.addResources(PlexusIoFileResourceCollection.java:156)}}
{{ at org.codehaus.plexus.components.io.resources.PlexusIoFileResourceCollection.getResources(PlexusIoFileResourceCollection.java:250)}}
{{ at org.codehaus.plexus.archiver.AbstractArchiver$1.hasNext(AbstractArchiver.java:506)}}
{{ at org.codehaus.plexus.archiver.zip.AbstractZipArchiver.createArchiveMain(AbstractZipArchiver.java:257)}}
{{ at org.codehaus.plexus.archiver.zip.AbstractZipArchiver.execute(AbstractZipArchiver.java:235)}}
{{ at org.codehaus.plexus.archiver.AbstractArchiver.createArchive(AbstractArchiver.java:987)}}
{{ at org.apache.maven.archiver.MavenArchiver.createArchive(MavenArchiver.java:649)}}
{{ at org.apache.maven.plugins.javadoc.JavadocJar.generateArchive(JavadocJar.java:300)}}
{{ at org.apache.maven.plugins.javadoc.JavadocJar.doExecute(JavadocJar.java:205)}}
{{ at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.execute(AbstractJavadocMojo.java:1912)}}
{{ at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)}}
{{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)}}
{{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:154)}}
{{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:146)}}
{{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)}}
{{ at org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call(MultiThreadedBuilder.java:200)}}
{{ at org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call(MultiThreadedBuilder.java:196)}}
{{ at java.util.concurrent.FutureTask.run(java.base@11/FutureTask.java:264)}}
{{ at java.util.concurrent.Executors$RunnableAdapter.call(java.base@11/Executors.java:515)}}
{{ at java.util.concurrent.FutureTask.run(java.base@11/FutureTask.java:264)}}
{{ at java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11/ThreadPoolExecutor.java:1128)}}
{{ at java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11/ThreadPoolExecutor.java:628)}}
{{ at java.lang.Thread.run(java.base@11/Thread.java:834)}}



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