copy to ~/.m2/extensions.xml

Signed-off-by: Olivier Lamy <olamy@apache.org>

Author: olamy

Jenkinsfile

@@ -67,7 +67,7 @@ def mavenBuild(jdk, extraArgs) {
       withEnv(["JAVA_HOME=${tool "$jdk"}",
                "PATH+MAVEN=${ tool "$jdk" }/bin:${tool "maven_3_latest"}/bin",
                "MAVEN_OPTS=-Xms4G -Xmx4G -Djava.awt.headless=true"]) {
-        sh "cp .github/ci-extensions.xml ~/.m2/extensions.xml"
+        sh "cp .github/ci-extensions.xml ~/.mvn/extensions.xml"
         sh "mvn --errors --batch-mode --show-version org.apache.maven.plugins:maven-wrapper-plugin:3.3.2:wrapper -Dmaven=4.0.0-rc-3"
         sh "./mvnw clean install -B -U -e -DskipTests -PversionlessMavenDist -V -DdistributionTargetDir=${env.WORKSPACE}/.apache-maven-master"
         // we use two steps so that we can cache artifacts downloaded from Maven Central repository