Plexus Components

[PATCH] Huge performance improvement in JavacCompiler by caching the JavaC class

Details

  • Type: Improvement Improvement
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: plexus-compiler-1.8.2
  • Fix Version/s: plexus-compiler-1.8.6
  • Component/s: plexus-compiler
  • Labels:
    None
  • Environment:
    Plexus trunk
  • Number of attachments :
    1

Description

In the current version of org.codehaus.plexus.compiler.javac.JavacCompiler, for each compilation task a new classloader is being created to load JavaC.
This slows down the build process.

With the attached patch JavacCompiler will cache the classloader. For me this reduces the build time to 1/3 when compiling multiple projects.

Activity

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Jörg Waßmer made changes -
Field Original Value New Value
Attachment PLXCOMP-202.patch [ 59037 ]
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Jörg Waßmer added a comment -

This also solves "OutOfPermSpace" problems when running huge builds via the Maven reactor.

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Jörg Waßmer added a comment - This also solves "OutOfPermSpace" problems when running huge builds via the Maven reactor.
Olivier Lamy made changes -
Assignee Olivier Lamy [ olamy ]
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Olivier Lamy added a comment -

good catch !
I'm doing some testing and looks very good!

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Olivier Lamy added a comment - good catch ! I'm doing some testing and looks very good!
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Olivier Lamy added a comment -

pushed https://github.com/sonatype/plexus-compiler/commit/b6ac771d6deb2ada47f24d9873e8a7d381c5f8de

Thanks !

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Olivier Lamy added a comment - pushed https://github.com/sonatype/plexus-compiler/commit/b6ac771d6deb2ada47f24d9873e8a7d381c5f8de Thanks !
Olivier Lamy made changes -
Status Open [ 1 ] Closed [ 6 ]
Fix Version/s plexus-compiler-1.8.6 [ 18340 ]
Resolution Fixed [ 1 ]

People

  • Assignee:
    Olivier Lamy
    Reporter:
    Jörg Waßmer
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Dates

  • Created:
    Updated:
    Resolved: