TLDR; issue fixed :) tracked in https://issues.apache.org/jira/browse/MSITE-863
fixed in maven-reporting-exec 1.5-SNAPSHOT https://issues.apache.org/jira/browse/MSHARED-921 this is caused by Xpp3Dom class incompatibility with Xpp3DomUtils.mergeXpp3Dom(...): - Xpp3Dom version is taken from Maven core classloader as exported: see http://maven.apache.org/ref/3.6.3/maven-core/core-extensions.html - Xpp3DomUtils is taken from current plugin classloader with recent upgrade of plexus-utils in maven-site-plugin 3.9.0, Xpp3DomUtils is a recent version (plexus-utils >= 3.2.0) that expects to merge the input location (see https://github.com/codehaus-plexus/plexus-utils/issues/61) but older Maven core versions don't have this input location field in Xpp3Dom, since they provide older plexus-utils that was upgraded to add location tracking in MNG-6597 for Maven 3.6.1 I fixed the issue by shading and older Xpp3DomUtils class into maven-reporting-exec I'll release Maven Reporting Exec 1.5 soon, then Maven Site Plugin 3.9.1 Regards, Hervé Le lundi 25 mai 2020, 09:21:40 CEST Karl Heinz Marbaise a écrit : > Hi Hervé, > > you can reproduce the issue on mojohaus parent repository > (github.com:mojohaus/mojo-parent.git) and using the branch "issue-105" > > and just: > > mvn site site:stage > > Using Maven 3.5.2 fails with the described issue. > > Kind regards > Karl Heinz Marbaise > > On 25.05.20 08:41, Hervé BOUTEMY wrote: > > uh, strange: maven-site-plugin ITs are ok with many Maven and JDK versions > > [1] > > > > I'll need some time to investigate > > > > Regards, > > > > Hervé > > > > > > [1] > > https://builds.apache.org/blue/organizations/jenkins/maven-box%2Fmaven-si > > te-plugin/detail/master/94/pipeline> > > Le dimanche 24 mai 2020, 12:01:46 CEST Karl Heinz Marbaise a écrit : > >> Hi to all, > >> > >> I've stumbled upon the following problem during the site generation > >> > >> mojo-parent (issue-105)$ mvn site site:stage > >> .. > >> [INFO] > >> [INFO] --- maven-site-plugin:3.9.0:site (default-site) @ mojo-parent --- > >> [INFO] configuring report plugin > >> org.apache.maven.plugins:maven-plugin-plugin:3.6.0 > >> [INFO] preparing maven-plugin-plugin:report report requires > >> 'process-classes' forked phase execution > >> [INFO] > >> [INFO] >>> maven-plugin-plugin:3.6.0:report > process-classes @ > >> mojo-parent >>> > >> [INFO] > >> [INFO] --- maven-enforcer-plugin:1.4:enforce (mojo-enforcer-rules) @ > >> mojo-parent --- > >> [INFO] > >> [INFO] <<< maven-plugin-plugin:3.6.0:report < process-classes @ > >> mojo-parent <<< > >> [INFO] 'process-classes' forked phase execution for > >> maven-plugin-plugin:report report preparation done > >> [INFO] 1 report detected for maven-plugin-plugin:3.6.0: report > >> [INFO] configuring report plugin > >> org.apache.maven.plugins:maven-changes-plugin:2.11 > >> [INFO] 1 report configured for maven-changes-plugin:2.11: github-report > >> [INFO] configuring report plugin > >> org.apache.maven.plugins:maven-checkstyle-plugin:2.16 > >> [INFO] 1 report configured for maven-checkstyle-plugin:2.16: checkstyle > >> [INFO] configuring report plugin > >> org.apache.maven.plugins:maven-javadoc-plugin:3.2.0 > >> [INFO] > >> ------------------------------------------------------------------------ > >> [INFO] BUILD FAILURE > >> [INFO] > >> ------------------------------------------------------------------------ > >> [INFO] Total time: 2.144 s > >> [INFO] Finished at: 2020-05-24T11:50:11+02:00 > >> [INFO] Final Memory: 30M/128M > >> [INFO] > >> ------------------------------------------------------------------------ > >> [ERROR] Failed to execute goal > >> org.apache.maven.plugins:maven-site-plugin:3.9.0:site (default-site) on > >> project mojo-parent: Execution default-site of goal > >> org.apache.maven.plugins:maven-site-plugin:3.9.0:site failed: An API > >> incompatibility was encountered while executing > >> org.apache.maven.plugins:maven-site-plugin:3.9.0:site: > >> java.lang.NoSuchMethodError: 'java.lang.Object > >> org.codehaus.plexus.util.xml.Xpp3Dom.getInputLocation()' > >> [ERROR] ----------------------------------------------------- > >> [ERROR] realm = > >> plugin>org.apache.maven.plugins:maven-site-plugin:3.9.0 > >> [ERROR] strategy = > >> org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy > >> [ERROR] urls[0] = > >> file:/Users/khmarbaise/.m2/repository/org/apache/maven/plugins/maven-site > >> -pl ugin/3.9.0/maven-site-plugin-3.9.0.jar > >> > >> > >> This can be reproduced with 3.0.5 up to 3.6.1. > >> > >> Versions 3.6.2 and 3.6.3 are working fine. > >> > >> This means using maven-site-plugin 3.9.0 only working with Maven 3.6.2+ > >> ...in contradiction to the site[1] which says it is requirement 3.0.. > >> > >> Or has someone a different explanation for this? > >> > >> Kind regards > >> Karl Heinz Marbaise > >> > >> > >> [1]: https://maven.apache.org/plugins/maven-site-plugin/plugin-info.html --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
