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From Thomas Broyer <>
Subject Re: Any reason ant should compile faster?
Date Wed, 24 Jul 2013 15:28:11 GMT
On Wed, Jul 24, 2013 at 4:28 PM, Russell Gold <> wrote:
> Hi,
> Maybe somebody else has run into this. I'm converting a really messy 200-ant-script build
to maven, and some steps seems to run a lot slower, now.
> The case I'm wondering about now is one where we have over 10,000 source files in a directory,
and compile them bit-by-bit. One step specifies about 300 files, and thanks to javac dependency
logic, actually compiles about 4000 files in ant.
> I have converted this to maven by moving the 4000 files into the maven project src/main/java
tree. Maven, of course, tells javac to compile all 4000 files.
> In ant, this step takes about 20 seconds. In maven, it takes about 90 seconds. Any ideas

Maybe just because the staleness check used by the
maven-compiler-plugin (or is it plexus-compiler?) now scans the 4000
files whereas your Ant script only scanned 300 files.
The way the compiler is invoked might play a role too, the default
depends on the version of the maven-compiler-plugin (and
plexus-compiler) you're using.

Thomas Broyer

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