270         while (moduleLocationIterator.hasNext()) {
 271             Set<Location> locns = (moduleLocationIterator.next());
 272             namesInSet.clear();
 273             for (Location l: locns) {
 274                 try {
 275                     Name n = names.fromString(fileManager.inferModuleName(l));
 276                     if (namesInSet.put(n, l) == null) {
 277                         ModuleSymbol msym = syms.enterModule(n);
 278                         if (msym.sourceLocation != null || msym.classLocation != null) {
 279                             // module has already been found, so ignore this instance
 280                             continue;
 281                         }
 282                         if (moduleLocationIterator.outer == StandardLocation.MODULE_SOURCE_PATH) {
 283                             msym.sourceLocation = l;
 284                             if (fileManager.hasLocation(StandardLocation.CLASS_OUTPUT)) {
 285                                 msym.classLocation = fileManager.getLocationForModule(StandardLocation.CLASS_OUTPUT, msym.name.toString());
 286                             }
 287                         } else {
 288                             msym.classLocation = l;
 289                         }



 290                         if (moduleLocationIterator.outer == StandardLocation.SYSTEM_MODULES ||
 291                             moduleLocationIterator.outer == StandardLocation.UPGRADE_MODULE_PATH) {
 292                             msym.flags_field |= Flags.SYSTEM_MODULE;
 293                         }
 294                         if (toFind == msym || toFind == null) {
 295                             // Note: cannot return msym directly, because we must finish
 296                             // processing this set first
 297                             results.add(msym);
 298                         }
 299                     } else {
 300                         log.error(Errors.DuplicateModuleOnPath(
 301                                 getDescription(moduleLocationIterator.outer), n));
 302                     }
 303                 } catch (IOException e) {
 304                     // skip location for now?  log error?
 305                 }
 306             }
 307             if (toFind != null && results.nonEmpty())
 308                 return results.toList();
 309         }

 270         while (moduleLocationIterator.hasNext()) {
 271             Set<Location> locns = (moduleLocationIterator.next());
 272             namesInSet.clear();
 273             for (Location l: locns) {
 274                 try {
 275                     Name n = names.fromString(fileManager.inferModuleName(l));
 276                     if (namesInSet.put(n, l) == null) {
 277                         ModuleSymbol msym = syms.enterModule(n);
 278                         if (msym.sourceLocation != null || msym.classLocation != null) {
 279                             // module has already been found, so ignore this instance
 280                             continue;
 281                         }
 282                         if (moduleLocationIterator.outer == StandardLocation.MODULE_SOURCE_PATH) {
 283                             msym.sourceLocation = l;
 284                             if (fileManager.hasLocation(StandardLocation.CLASS_OUTPUT)) {
 285                                 msym.classLocation = fileManager.getLocationForModule(StandardLocation.CLASS_OUTPUT, msym.name.toString());
 286                             }
 287                         } else {
 288                             msym.classLocation = l;
 289                         }
 290                         if (fileManager.hasLocation(StandardLocation.PATCH_MODULE_PATH)) {
 291                             msym.patchLocation = fileManager.getLocationForModule(StandardLocation.PATCH_MODULE_PATH, msym.name.toString());
 292                         }
 293                         if (moduleLocationIterator.outer == StandardLocation.SYSTEM_MODULES ||
 294                             moduleLocationIterator.outer == StandardLocation.UPGRADE_MODULE_PATH) {
 295                             msym.flags_field |= Flags.SYSTEM_MODULE;
 296                         }
 297                         if (toFind == msym || toFind == null) {
 298                             // Note: cannot return msym directly, because we must finish
 299                             // processing this set first
 300                             results.add(msym);
 301                         }
 302                     } else {
 303                         log.error(Errors.DuplicateModuleOnPath(
 304                                 getDescription(moduleLocationIterator.outer), n));
 305                     }
 306                 } catch (IOException e) {
 307                     // skip location for now?  log error?
 308                 }
 309             }
 310             if (toFind != null && results.nonEmpty())
 311                 return results.toList();
 312         }