Maven installation configuration with per-user configuration for example:
 <<<$\{maven.conf}/logging>>> directory was added to core's classpath (see <<<$\{maven.home}/bin/m2.conf>>>). See your implementation
 documentation for details on file names, formats, and so on.

 During Maven initialization, Maven tweaks default root logging level to match CLI verbosity choice. Since such feature isn't available

            config.addProfile(profile);
        }

        String localRepoPath = System.getProperty(
                "maven.repo.local",
                System.getProperty("user.home") + File.separator + ".m2" + File.separator + "repository");
        Path absolutePath = Paths.get(localRepoPath).toAbsolutePath();
        config.setLocalRepository(MavenRepositorySystem.createArtifactRepository(

      <dependency>
        <groupId>org.apache.maven.mercury</groupId>
        <artifactId>mercury-repo-local-m2</artifactId>
        <version>${mercuryVersion}</version>
        <scope>test</scope>
      </dependency>
      <dependency>
        <groupId>org.apache.maven.mercury</groupId>
        <artifactId>mercury-repo-remote-m2</artifactId>
        <version>${mercuryVersion}</version>
        <scope>test</scope>
      </dependency>

    @SuppressWarnings("checkstyle:constantname")
    String userHome = System.getProperty("user.home");

    @SuppressWarnings("checkstyle:constantname")
    File userMavenConfigurationHome = new File(userHome, ".m2");

    @SuppressWarnings("checkstyle:constantname")
    File defaultUserLocalRepository = new File(userMavenConfigurationHome, "repository");

    String DEFAULT_REMOTE_REPO_ID = MavenRepositorySystem.DEFAULT_REMOTE_REPO_ID;

  <id>toolchains</id>
  <name>MavenToolchains</name>
  <description><![CDATA[
    This is a reference for the Maven Toolchains descriptor.
    <p>The default location for the toolchains file is {@code ~/.m2/toolchains.xml}
    <p>A Toolchain is a preconfigured object that Maven plugins can use for tool configuration retrieval (location and other information).

      PRG="`dirname "$PRG"`/$link"
    fi
  done

  saveddir=`pwd`

  M2_HOME=`dirname "$PRG"`/..

  # make it fully qualified
  M2_HOME=`cd "$M2_HOME" && pwd`

  cd "$saveddir"
  # echo Using m2 at $M2_HOME
fi

# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin ; then
  [ -n "$M2_HOME" ] &&
    M2_HOME=`cygpath --unix "$M2_HOME"`
  [ -n "$JAVA_HOME" ] &&

        Object value = ee.evaluate(expr);

        assertEquals(expr, value);
    }

    @Test
    public void testPOMPropertyExtractionWithMissingProjectWithDotNotation() throws Exception {
        String key = "m2.name";
        String checkValue = "value";

        MavenProject project = createDefaultProject();
        project.getModel().getProperties().setProperty(key, checkValue);

    <p>Includes things that should not be distributed with the <code>pom.xml</code> file, such as developer identity, along with
    local settings, like proxy information.</p>
    <p>The default location for the settings file is {@code ~/.m2/settings.xml}.</p>
    ]]>
  </description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.settings</value>
    </default>
  </defaults>
  <classes>

  fi
done

saveddir=`pwd`

MAVEN_HOME=`dirname "$PRG"`/..

# make it fully qualified
MAVEN_HOME=`cd "$MAVEN_HOME" && pwd`

cd "$saveddir"

CLASSWORLDS_CONF="$MAVEN_HOME/bin/m2.conf"

# For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
if $cygwin || $mingw ; then
  [ -n "$JAVA_HOME" ] &&
    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
fi

set "MAVEN_HOME=%MAVEN_HOME:~0,-5%"
if "%MAVEN_HOME%"=="" goto error

:checkMCmd
if not exist "%MAVEN_HOME%\bin\mvn.cmd" goto error

@REM ==== END VALIDATION ====

:init

set "CLASSWORLDS_CONF=%MAVEN_HOME%\bin\m2.conf"

@REM Find the project basedir, i.e., the directory that contains the directory ".mvn".
@REM Fallback to current working directory if not found.

set "EXEC_DIR=%CD%"
set "WDIR=%EXEC_DIR%"