resources/META-INF/plugin-java.xml

<?xml version="1.0" encoding="UTF-8"?>
<idea-plugin>
  <resource-bundle>messages.GrammarKitBundle</resource-bundle>
  <extensions defaultExtensionNs="com.intellij">
    <projectService serviceInterface="org.intellij.grammar.java.JavaHelper" serviceImplementation="org.intellij.grammar.java.JavaHelper$PsiHelper"/>
    <referencesSearch implementation="org.intellij.jflex.psi.impl.JFlexStateUsageSearcher"/>
    <regExpLanguageHost forClass="org.intellij.grammar.psi.impl.BnfStringImpl" implementationClass="org.intellij.grammar.psi.impl.BnfStringRegexHost"/>

    <multiHostInjector implementation="org.intellij.jflex.psi.impl.JFlexJavaCodeInjector"/>
    <lang.elementManipulator forClass="org.intellij.jflex.psi.impl.JFlexJavaCodeImpl"
                             implementationClass="org.intellij.jflex.psi.impl.JFlexJavaCodeManipulator"/>

    <notificationGroup id="grammarkit.parser.generator.log" displayType="NONE" key="notification.group.parser.generator.log"/>
  </extensions>
  <actions>
    <group id="grammar.group">
      <action id="grammar.Generate" class="org.intellij.grammar.actions.GenerateAction">
        <keyboard-shortcut keymap="$default" first-keystroke="control shift G"/>
      </action>
      <action id="grammar.Run.JFlex" class="org.intellij.grammar.actions.BnfRunJFlexAction"
              use-shortcut-of="grammar.Generate">
      </action>
      <action id="grammar.Generate.ParserUtil" class="org.intellij.grammar.actions.BnfGenerateParserUtilAction"/>
      <action id="grammar.Generate.JFlexLexer" class="org.intellij.grammar.actions.BnfGenerateLexerAction"/>
      <separator/>
      <action id="grammar.fleet.Generate" class="org.intellij.grammar.fleet.GenerateFleetAction"/>
      <action id="grammar.fleet.Generate.JFlexLexer" class="org.intellij.grammar.fleet.BnfGenerateFleetLexerAction"/>
      <action id="grammar.fleet.Run.JFlex" class="org.intellij.grammar.fleet.BnfRunFleetJFlexAction"/>
      <add-to-group group-id="grammar.file.group" anchor="first"/>
    </group>
  </actions>
</idea-plugin>