[MDEP-421] Unpack Incredibly Slow for

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Incomplete
• Affects Version/s: 2.8
• Component/s: unpack-dependencies
• Assignee: Robert Scholte
• Reporter: Mike Gilbode
• Created: 30/Jun/13 16:44
• Updated: 08/Dec/16 21:44
• Resolved: 08/Dec/16 21:44

Description

I've got a zipfile that is 240MB and has ~84k entries. I'm trying to use unpack-dependencies and it is taking an inordinate amount of time such that it is basically unusable. It seems that it's eagerly trying to read through every zip file entry before actually unpacking. This takes roughly 15 minutes where using the maven antrun plugin / unzip task takes less than a minute.

   java.lang.Thread.State: RUNNABLE
        at java.util.Hashtable.put(Hashtable.java:549)
        - locked <0x00000007e160ea18> (a java.util.Hashtable)
        at org.codehaus.plexus.archiver.zip.ZipFile.resolveLocalFileHeaderData(ZipFile.java:451)
        at org.codehaus.plexus.archiver.zip.ZipFile.<init>(ZipFile.java:153)
        at org.codehaus.plexus.archiver.zip.AbstractZipUnArchiver.execute(AbstractZipUnArchiver.java:138)
        at org.codehaus.plexus.archiver.AbstractUnArchiver.extract(AbstractUnArchiver.java:120)
        at org.apache.maven.plugin.dependency.AbstractDependencyMojo.unpack(AbstractDependencyMojo.java:315)
        at org.apache.maven.plugin.dependency.fromDependencies.UnpackDependenciesMojo.doExecute(UnpackDependenciesMojo.java:91)
        at org.apache.maven.plugin.dependency.AbstractDependencyMojo.execute(AbstractDependencyMojo.java:167)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        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.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(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.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)