src/java.base/share/classes/jdk/internal/module/SystemModules.java

@@ -27,18 +27,18 @@
 
 import java.lang.module.ModuleDescriptor;
 
 /*
  * SystemModules class will be generated at link time to create
- * ModuleDescriptor for the installed modules directly to improve
+ * ModuleDescriptor for the system modules directly to improve
  * the module descriptor reconstitution time.
  *
  * This will skip parsing of module-info.class file and validating
  * names such as module name, package name, service and provider type names.
  * It also avoids taking a defensive copy of any collection.
  *
- * @see jdk.tools.jlink.internal.plugins.SystemModuleDescriptorPlugin
+ * @see jdk.tools.jlink.internal.plugins.SystemModulesPlugin
  */
 public final class SystemModules {
     /**
      * Name of the system modules.
      *

@@ -47,15 +47,10 @@
      * the fastpath.
      */
     public static final String[] MODULE_NAMES = new String[0];
 
     /**
-     * Hash of system modules.
-     */
-    public static byte[][] MODULES_TO_HASH = new byte[0][];
-
-    /**
      * Number of packages in the boot layer from the installed modules.
      *
      * Don't make it final to avoid inlining during compile time as
      * the value will be changed at jlink time.
      */

@@ -64,10 +59,26 @@
     /**
      * Returns a non-empty array of ModuleDescriptors in the run-time image.
      *
      * When running an exploded image it returns an empty array.
      */
-    public static ModuleDescriptor[] modules() {
-        throw new InternalError("should not reach here");
+    public static ModuleDescriptor[] descriptors() {
+        throw new InternalError("expected to be overridden at link time");
+    }
+
+    /**
+     * Returns a non-empty array of ModuleHashes recorded in each module
+     * in the run-time image.
+     *
+     * When running an exploded image it returns an empty array.
+     */
+    public static ModuleHashes[] hashes() {
+        throw new InternalError("expected to be overridden at link time");
     }
 
+    /**
+     * Returns a non-empty array of ModuleResolutions in the run-time image.
+     */
+    public static ModuleResolution[] moduleResolutions() {
+        throw new InternalError("expected to be overridden at link time");
+    }
 }