src/java.base/share/classes/jdk/internal/loader/BootLoader.java

*** 28,37 ****
--- 28,38 ----
  import java.io.InputStream;
  import java.lang.module.ModuleReference;
  import java.lang.reflect.Layer;
  import java.lang.reflect.Module;
  import java.net.MalformedURLException;
+ import java.net.URI;
  import java.net.URL;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.security.AccessController;
*** 182,202 ****
      static class PackageHelper {
          private static final JavaLangAccess JLA = SharedSecrets.getJavaLangAccess();
  
          /**
           * Define the {@code Package} with the given name. The specified
!          * location is a jrt URL to a named module in the run-time image, a
!          * file path to a module in an exploded run-time image, or the file
!          * path to an enty on the boot class path (java agent Boot-Class-Path
           * or -Xbootclasspath/a.
           *
           * <p> If the given location is a JAR file containing a manifest,
           * the defined Package contains the versioning information from
           * the manifest, if present.
           *
           * @param name     package name
!          * @param location location where the package is (jrt URL or file path)
           */
          static Package definePackage(String name, String location) {
              Module module = findModule(location);
              if (module != null) {
                  // named module from runtime image or exploded module
--- 183,205 ----
      static class PackageHelper {
          private static final JavaLangAccess JLA = SharedSecrets.getJavaLangAccess();
  
          /**
           * Define the {@code Package} with the given name. The specified
!          * location is a jrt URL to a named module in the run-time image,
!          * a file URL to a module in an exploded run-time image, or a file
!          * path to an entry on the boot class path (java agent Boot-Class-Path
           * or -Xbootclasspath/a.
           *
           * <p> If the given location is a JAR file containing a manifest,
           * the defined Package contains the versioning information from
           * the manifest, if present.
           *
           * @param name     package name
!          * @param location location where the package is (jrt URL or file URL
!          *                 for a named module in the run-time or exploded image;
!          *                 a file path for a package from -Xbootclasspath/a)
           */
          static Package definePackage(String name, String location) {
              Module module = findModule(location);
              if (module != null) {
                  // named module from runtime image or exploded module
*** 220,232 ****
          private static Module findModule(String location) {
              String mn = null;
              if (location.startsWith("jrt:/")) {
                  // named module in runtime image ("jrt:/".length() == 5)
                  mn = location.substring(5, location.length());
!             } else {
                  // named module in exploded image
!                 Path path = Paths.get(location);
                  Path modulesDir = Paths.get(JAVA_HOME, "modules");
                  if (path.startsWith(modulesDir)) {
                      mn = path.getFileName().toString();
                  }
              }
--- 223,235 ----
          private static Module findModule(String location) {
              String mn = null;
              if (location.startsWith("jrt:/")) {
                  // named module in runtime image ("jrt:/".length() == 5)
                  mn = location.substring(5, location.length());
!             } else if (location.startsWith("file:")) {
                  // named module in exploded image
!                 Path path = Paths.get(URI.create(location));
                  Path modulesDir = Paths.get(JAVA_HOME, "modules");
                  if (path.startsWith(modulesDir)) {
                      mn = path.getFileName().toString();
                  }
              }