Difference between export, indirect export, requirements and indirect requirements in Java9?

Question

I was looking through the API docs for jdk.accessibilityand noticed that it lists all of these separately.

• Are modules with a scope requiresin a single module - is this an indirect requirement consuming module?

• The module module-info.javafor the module is as follows:

  module jdk.accessibility {
      requires transitive java.desktop;
  
      exports com.sun.java.accessibility.util;
  }
  

  and for java.desktop- it's something like (trying to include a variable -

  module java.desktop {
      ...
      requires java.prefs;
      ...
      requires transitive java.xml;
      exports java.applet;
      ...
      exports sun.awt to
          javafx.swing,
          jdk.accessibility,
          oracle.desktop;
      opens javax.swing.plaf.basic to jdk.jconsole;
      ...
      uses javax.sound.sampled.spi.MixerProvider;
      ...
      provides javax.sound.sampled.spi.MixerProvider with
          com.sun.media.sound.DirectAudioDeviceProvider,
          com.sun.media.sound.PortMixerProvider;
  

  But then the document for jdk.accessibilitydoes not mention sun.awtboth “Required as well as indirect requirement” or “Indirect export”. What is the reason for the insolvency here?

, , (2), Java9.

Answer 1

, :

module java.desktop {
    ...
    ...
    exports sun.awt to
        javafx.swing,
        jdk.accessibility,
        oracle.desktop;
}

sun.awt - , . ( .) , , sun.awt , java.desktop .

: , jdk.accessibility sun.awt . java.desktop jdk.accessibility, API. ( ), , jdk.accessibility java.desktop transitive.