Re: How can I tell what value of "maxmem" the maven-compiler-plugin is using by default?
If you don’t provide the fork=true parameter then javac will be started inline
and no heap settings are applicable.
Beside that the debug (-X) output is correctly showing you the expanded values,
if the property is not expanded it was not specified.
Gruss
Bernd
--
http://bernd.eckenfels.net
Von: KARR, DAVID
Gesendet: Friday, April 1, 2022 8:02:37 PM
An: Maven Users List
Betreff: How can I tell what value of "maxmem" the maven-compiler-plugin is
using by default?
I noticed that we have one build that is trying to compile so many files that
it is running out of memory in the maven-compiler-plugin execution. I see that
I can set the "maxmem" property in that plugin's configuration. What would be
nice to know is what the default value is. I thought that perhaps "mvn -X"
would tell me that, but that only tells me that the default value is
"${maven.compiler.maxmem}". That doesn't help me. How can I get the default
value of this property, or any particular property, from a given pom?
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Re: How can I tell what value of "maxmem" the maven-compiler-plugin is using by default?
Yes, it's using the javac compilers default.
It may differ depending on the JVM. OpenJ9, for example, will use up to 25%
of your memory by default. Others may use something between 64M and 512M.
Be aware that maxmem will only work if fork is set to true:
https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html#maxmem
Otherwise (no forking) compiling is done in the same process as Maven is
running in. You can then use -Xmx (eg in the .mvn config) as usual.
Ben
On Fri, 1 Apr 2022, 20:10 KARR, DAVID, wrote:
> > -Original Message-
> > From: KARR, DAVID
> > Sent: Friday, April 1, 2022 11:03 AM
> > To: Maven Users List
> > Subject: How can I tell what value of "maxmem" the maven-compiler-plugin
> > is using by default?
> >
> > I noticed that we have one build that is trying to compile so many files
> > that it is running out of memory in the maven-compiler-plugin execution.
> > I see that I can set the "maxmem" property in that plugin's
> > configuration. What would be nice to know is what the default value is.
> > I thought that perhaps "mvn -X" would tell me that, but that only tells
> > me that the default value is "${maven.compiler.maxmem}". That doesn't
> > help me. How can I get the default value of this property, or any
> > particular property, from a given pom?
>
> Self-answering, I guess if this is simply not providing a value if none is
> provided, that would leave it to the default maxmem for the jvm, which I
> guess is 256mb. Is that what is happening here?
>
>
> -
> To unsubscribe, e-mail: users-unsubscr...@maven.apache.org
> For additional commands, e-mail: users-h...@maven.apache.org
>
>
RE: How can I tell what value of "maxmem" the maven-compiler-plugin is using by default?
> -Original Message-
> From: KARR, DAVID
> Sent: Friday, April 1, 2022 11:03 AM
> To: Maven Users List
> Subject: How can I tell what value of "maxmem" the maven-compiler-plugin
> is using by default?
>
> I noticed that we have one build that is trying to compile so many files
> that it is running out of memory in the maven-compiler-plugin execution.
> I see that I can set the "maxmem" property in that plugin's
> configuration. What would be nice to know is what the default value is.
> I thought that perhaps "mvn -X" would tell me that, but that only tells
> me that the default value is "${maven.compiler.maxmem}". That doesn't
> help me. How can I get the default value of this property, or any
> particular property, from a given pom?
Self-answering, I guess if this is simply not providing a value if none is
provided, that would leave it to the default maxmem for the jvm, which I guess
is 256mb. Is that what is happening here?
-
To unsubscribe, e-mail: users-unsubscr...@maven.apache.org
For additional commands, e-mail: users-h...@maven.apache.org
How can I tell what value of "maxmem" the maven-compiler-plugin is using by default?
I noticed that we have one build that is trying to compile so many files that
it is running out of memory in the maven-compiler-plugin execution. I see that
I can set the "maxmem" property in that plugin's configuration. What would be
nice to know is what the default value is. I thought that perhaps "mvn -X"
would tell me that, but that only tells me that the default value is
"${maven.compiler.maxmem}". That doesn't help me. How can I get the default
value of this property, or any particular property, from a given pom?
-
To unsubscribe, e-mail: users-unsubscr...@maven.apache.org
For additional commands, e-mail: users-h...@maven.apache.org
