After Undoing changes using java API in sandbox EWM need to be repaired to work further with after opening EWM. How can I correctly undo unresolved changes. I did dig all related forum question related to undo changes  until I reach to this solution. but it need  rapair interaction process afterward in EWM. Thank you in advance :).  how can I do  clean undo changeset in plain java  just like scm command : scm.exe repair "BRM Stream Workspace"

p.s. Also resolver0 as in before last line did not work for me so I use resolver to get repository. 

        List<IWorkspaceHandle> workspaceHandles = ...

        IWorkspaceHandle wh = workspaceHandles.get(0);

      ArrayList<String> target = getAvailableComponentPath(); //like JKEJAVAUI, JKEBUSSINESLOGIC

        FileSystemCore.startUp();
       ISharingManager sm = FileSystemCore.getSharingManager();
        ILocalChangeManager lcm = sm.getLocalChangeManager();

       PathLocation pathlocation = new PathLocation(sandBoxLocation);
      ILocation sandBoxLocation = pathlocation.getCanonicalForm();

        String[] targetPaths = new String[target.size()];
       targetPaths = target.toArray(targetPaths);
      
        for (int i = 0; i < targetPaths.length; i++) {

           ISandbox sbox = sm.getSandbox(sandBoxLocation, false);
          IRelativeLocation relativeLocation = new RelativeLocation(
          Arrays.asList(targetPaths[i]));

         IShareable shareable = sbox.findShareable(relativeLocation,
                 ResourceType.FOLDER);
           lcm.refreshChanges(new ISandbox[] { sbox },
                 RefreshType.TRAVERSE_ALL_WITH_RECOMPUTE_OF_KNOWN, null);
            ILocalChange[] localChanges = lcm.getPendingChanges(
                    new IShareable[] { shareable }, null);

          IRepositoryResolver resolver = new IRepositoryResolver() {

                  public ITeamRepository getRepoFor(String uri, UUID id) {

                        // Return the repository to be used

                     return repo;

                    }

           };
          
            if (localChanges.length > 0) {               

                IRepositoryResolver resolver0 = IRepositoryResolver.EXISTING_SHARED; //This one did not work 

               lcm.undoChanges(localChanges, resolver, true, null, monitor);
           }