xml.namespace="http://maven.apache.org/EXTENSIONS/${version}"
  xml.schemaLocation="https://maven.apache.org/xsd/core-extensions-${version}.xsd">

  <id>core-extensions</id>
  <name>CoreExtensions</name>
  <description><![CDATA[
  <p>This is a reference for the Core Extensions descriptor.</p>
  <p>The default location for the Core Extensions descriptor file is <code>${maven.projectBasedir}/.mvn/extensions.xml</code></p>
  ]]></description>

~~ under the License.

 ---
 Maven Core Extensions Reference
 ---
 Hervé Boutemy
 ---
 2016-06-25
 ---

Maven Core Extensions Reference

  Maven core provides default {{{./extension.html}extensions}} as defined in <<</META-INF/maven/extension.xml>>>:

  <description>
    Test that build extensions are properly merged during inheritance.
  </description>

  <build>
    <!-- project extensions should precede inherited extensions -->
    <extensions>
      <extension>
        <groupId>org.apache.maven.its.mng3899</groupId>
        <artifactId>b</artifactId>
        <version>0.1</version>
      </extension>
      <extension>

                <extensions>
                    <extension>
                        <groupId>io.takari.maven</groupId>
                        <artifactId>takari-smart-builder</artifactId>
                        <version>1.0.2</version>
                    </extension>
                </extensions>
                """;
        Path userConf = userHome.resolve(".m2");

    } // -- void removeExtension( CoreExtension )

    /**
     * Set a set of build extensions to use from this project.
     *
     * @param extensions a extensions object.
     */
    public void setExtensions(List<CoreExtension> extensions) {
        this.extensions = extensions;
    } // -- void setExtensions( List )

    /**
     * Set the modelEncoding field.
     *

maven.user.toolchains         = ${maven.user.conf}/toolchains.xml

#
# Extensions
#
maven.installation.extensions = ${maven.installation.conf}/extensions.xml
maven.project.extensions      = ${maven.project.conf}/extensions.xml
maven.user.extensions         = ${maven.user.conf}/extensions.xml

#
# Maven central repository URL.
#

 * Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits=15
 * Sec-WebSocket-Extensions: permessage-deflate; client_no_context_takeover
 * Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits="15"
 * Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits=15
 * Sec-WebSocket-Extensions: permessage-deflate; server_no_context_takeover
 * Sec-WebSocket-Extensions: permessage-deflate; server_no_context_takeover;

            }
        }

        @Test
        @DisplayName("Should handle rapid succession of different extensions")
        void testRapidDifferentExtensions() throws IOException {
            String[] extensions = { "pdf", "doc", "xls", "html", "jpg", "gif", "png", "txt", "xml", "css" };
            for (String ext : extensions) {
                assertNotNull(mimeMap.getMimeType(ext));
            }
        }
    }

            context.logger.warn(
                    "Order of core extensions precedence is project > user > installation. Selected extensions are:");
            for (CoreExtension extension : selectedExtensions.values()) {
                context.logger.warn(
                        "* " + extension.getId() + " configured in " + formatLocation(extension.getLocation("")));
            }
        }

  project.dependencies {
    osgiApi(kotlinOsgi)
  }

  val jarTask = tasks.getByName<Jar>(jarTaskName)
  val bundleExtension =
    jarTask.extensions.findByType() ?: jarTask.extensions.create(
      BundleTaskExtension.NAME,
      BundleTaskExtension::class.java,
      jarTask,
    )
  bundleExtension.run {
    setClasspath(osgi.compileClasspath + sourceSets["main"].compileClasspath)