src/jdk.jartool/share/classes/sun/tools/jar/Main.java

@@ -697,11 +697,11 @@
             }
             name = name.substring(i + 1, name.length());
         }
         String pn = toPackageName(name);
         // add if this is a class or resource in a package
-        if (Checks.isJavaIdentifier(pn)) {
+        if (Checks.isPackageName(pn)) {
             packages.add(pn);
         }
     }
 
     private String toEntryName(String name, Set<String> cpaths, boolean isDir) {

@@ -1993,11 +1993,11 @@
             } else {
                 system = ModuleFinder.ofSystem();
             }
             // get a resolved module graph
             Configuration config =
-                Configuration.empty().resolveRequires(system, finder, roots);
+                Configuration.empty().resolve(system, finder, roots);
 
             // filter modules resolved from the system module finder
             this.modules = config.modules().stream()
                 .map(ResolvedModule::name)
                 .filter(mn -> roots.contains(mn) && !system.find(mn).isPresent())