src/jdk.jdeps/share/classes/com/sun/tools/jdeps/JdepsConfiguration.java

*** 68,77 ****
--- 68,78 ----
  
  public class JdepsConfiguration implements AutoCloseable {
      // the token for "all modules on the module path"
      public static final String ALL_MODULE_PATH = "ALL-MODULE-PATH";
      public static final String ALL_DEFAULT = "ALL-DEFAULT";
+     public static final String ALL_SYSTEM = "ALL-SYSTEM";
      public static final String MODULE_INFO = "module-info.class";
  
      private final SystemModuleFinder system;
      private final ModuleFinder finder;
  
*** 197,212 ****
          Objects.requireNonNull(name);
          Module m = nameToModule.get(name);
          return m!= null ? Optional.of(m.descriptor()) : Optional.empty();
      }
  
-     boolean isSystem(Module m) {
-         return system.find(m.name()).isPresent();
-     }
- 
      boolean isValidToken(String name) {
!         return ALL_MODULE_PATH.equals(name) || ALL_DEFAULT.equals(name);
      }
  
      /**
       * Returns the modules that the given module can read
       */
--- 198,211 ----
          Objects.requireNonNull(name);
          Module m = nameToModule.get(name);
          return m!= null ? Optional.of(m.descriptor()) : Optional.empty();
      }
  
      boolean isValidToken(String name) {
!         return ALL_MODULE_PATH.equals(name) ||
!                 ALL_DEFAULT.equals(name) ||
!                 ALL_SYSTEM.equals(name);
      }
  
      /**
       * Returns the modules that the given module can read
       */
*** 532,541 ****
--- 531,543 ----
                          this.addAllApplicationModules = true;
                          break;
                      case ALL_DEFAULT:
                          this.addAllDefaultModules = true;
                          break;
+                     case ALL_SYSTEM:
+                         this.addAllSystemModules = true;
+                         break;
                      default:
                          this.rootModules.add(mn);
                  }
              }
              return this;