[ANN] Apache Software Foundation Parent POM Version 35 Released
The Apache Maven team is pleased to announce the release of the Apache Software Foundation Parent POM Version, version 35 https://maven.apache.org/pom/asf/ You should specify the version in your project as parent like the following: org.apache apache 35 You can download the appropriate sources etc. from the download page: http://maven.apache.org/pom/asf/download.html Release Notes https://github.com/apache/maven-apache-parent/releases/tag/apache-35 Enjoy, -The Apache Maven team - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
[RESULT] [VOTE] Release Apache Software Foundation Parent POM version 35
Hi, The vote has passed with the following result: +1: Sylwester Lachiewicz, Slawomir Jaranowski, Guillaume Nodet, Matthias Bünger PMC quorum: reached I will promote the source release zip file to the Apache distribution area and the artifacts to the central repo. -- Sławomir Jaranowski - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Investigate mvn4 large graph performance regression; was: Re: Maven 4.0.0 Release - Thoughts?
excellent! looks like the hash code paths were only part of the puzzle. I added some screenshots to this issue https://github.com/apache/maven/issues/2481, since it is easier to share graphs there compared to mail attachments. unfortunately the weather is nice so I am not sure how much time I can spend on this the next days, but this doesn't look to me like a showstopper for mvn4 in my opinion (as user) since it can be likely improved via regular updates. best regards, michael On 6/13/25 11:18, Sergey Chernov wrote: > I made a simple multi-module project generator which has some size > parameters. > Please see project description here > https://github.com/maven-turbo-reactor/maven-multiproject-generator > > The good news is that it highlights the performance problem in comparison > between Maven3 and Maven4. > The generated project (which has 4k modules with default config, but zero > java source classes) takes 30sec on Maven3 and 1m40s on Maven4. > > I'd like to point that it also declares usage of maven-enforcer-plugin with > this config: > ``` > > org.apache.maven.plugins > maven-enforcer-plugin > 3.3.0 > > > enforce > > > > false > > > > > enforce > > > > > ``` > This plugin was my main suspect for the slowness, but it seems that any > plugin that iterates the dependencies (including any compilation plugin) > are affecting performance on Maven4. If enforcer plugin is removed, the > build is still slow on Maven4 (2.5x slower than Maven3). > > On Thu, Jun 12, 2025 at 1:33 PM Martijn Dashorst > wrote: > >> On Thu, Jun 12, 2025 at 1:48 AM Michael Bien wrote: >> >>> If there is a public project which hits this bottleneck I could take a >>> look and play >>> with some ideas to try to make this scale better. (I don't really want to >>> spam this thread >>> too much) >>> >> You could take a look at https://github.com/wicketstuff/core >> >> Lots and lots of projects.. >> >> Martijn >> - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Maven 4.0.0 Release - Thoughts?
I made a simple multi-module project generator which has some size parameters. Please see project description here https://github.com/maven-turbo-reactor/maven-multiproject-generator The good news is that it highlights the performance problem in comparison between Maven3 and Maven4. The generated project (which has 4k modules with default config, but zero java source classes) takes 30sec on Maven3 and 1m40s on Maven4. I'd like to point that it also declares usage of maven-enforcer-plugin with this config: ``` org.apache.maven.plugins maven-enforcer-plugin 3.3.0 enforce false enforce ``` This plugin was my main suspect for the slowness, but it seems that any plugin that iterates the dependencies (including any compilation plugin) are affecting performance on Maven4. If enforcer plugin is removed, the build is still slow on Maven4 (2.5x slower than Maven3). On Thu, Jun 12, 2025 at 1:33 PM Martijn Dashorst wrote: > On Thu, Jun 12, 2025 at 1:48 AM Michael Bien wrote: > > > If there is a public project which hits this bottleneck I could take a > > look and play > > with some ideas to try to make this scale better. (I don't really want to > > spam this thread > > too much) > > > > You could take a look at https://github.com/wicketstuff/core > > Lots and lots of projects.. > > Martijn >
Re: Maven 4.0.0 Release - Thoughts?
Coolio, kudos Sergey! My numbers are (OS name: "linux", version: "6.14.9-300.fc42.x86_64", arch: "amd64", family: "unix", Java version: 21.0.7, vendor: Eclipse Adoptium): mvn 3.9.10: 0:39 mvn4 master + R2.0.9: 1:36 mvn4 master + R2.0.10-SNAPSHOT: 1:42 The "R" is Resolver, and 2.0.10 contains this: https://github.com/apache/maven-resolver/commit/93bd1cb084e756beb3e544d368afaf006082f557 https://github.com/apache/maven-resolver/commit/daff12619a5be961a5dad8c191a47edc4ec353c4 But it is not the culprit it seems. Still, we now have a reproducer to work with, and MANY thanks for that! Thanks T On Fri, Jun 13, 2025 at 11:19 AM Sergey Chernov wrote: > > I made a simple multi-module project generator which has some size > parameters. > Please see project description here > https://github.com/maven-turbo-reactor/maven-multiproject-generator > > The good news is that it highlights the performance problem in comparison > between Maven3 and Maven4. > The generated project (which has 4k modules with default config, but zero > java source classes) takes 30sec on Maven3 and 1m40s on Maven4. > > I'd like to point that it also declares usage of maven-enforcer-plugin with > this config: > ``` > > org.apache.maven.plugins > maven-enforcer-plugin > 3.3.0 > > > enforce > > > > false > > > > > enforce > > > > > ``` > This plugin was my main suspect for the slowness, but it seems that any > plugin that iterates the dependencies (including any compilation plugin) > are affecting performance on Maven4. If enforcer plugin is removed, the > build is still slow on Maven4 (2.5x slower than Maven3). > > On Thu, Jun 12, 2025 at 1:33 PM Martijn Dashorst > wrote: > > > On Thu, Jun 12, 2025 at 1:48 AM Michael Bien wrote: > > > > > If there is a public project which hits this bottleneck I could take a > > > look and play > > > with some ideas to try to make this scale better. (I don't really want to > > > spam this thread > > > too much) > > > > > > > You could take a look at https://github.com/wicketstuff/core > > > > Lots and lots of projects.. > > > > Martijn > > - To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
Re: Investigate mvn4 large graph performance regression; was: Re: Maven 4.0.0 Release - Thoughts?
Weather here is bad in my city...just suffering from typhoon days. I would give several pr about my investigations on Sergey Chernov's demo repo this weekend. Most of them be minor/medium level performance refinements.
