openide/java/java-features-trainer/resources/intellij.java.featuresTrainer.xml

<idea-plugin>
  <extensions defaultExtensionNs="training">
    <ift.language.extension language="JAVA" defaultProductName="IDEA" implementationClass="com.intellij.java.ift.JavaLangSupport"/>
    <ift.learning.course language="JAVA" implementationClass="com.intellij.java.ift.JavaLearningCourse"/>
    <ifs.suggesterSupport language="JAVA" implementationClass="com.intellij.java.ifs.JavaSuggesterSupport"/>
  </extensions>
</idea-plugin>