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, <dk0...@att.com> wrote: > > -----Original Message----- > > From: KARR, DAVID <dk0...@att.com> > > Sent: Friday, April 1, 2022 11:03 AM > > To: Maven Users List <users@maven.apache.org> > > 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 > >
