code: public static boolean isUninstallable(Set<IFixInfo> installedFixes, IFixInfo fixToBeUninstalled) {
  
          if (Boolean.valueOf(System.getenv(S_DISABLE)).booleanValue()) {
              return true;
          }
  
          if (fixToBeUninstalled != null) {
              for (IFixInfo fix : installedFixes) {
                  if (!(fixToBeUninstalled.getId().equals(fix.getId())) && !confirmNoFileConflicts(fixToBeUninstalled.getUpdates().getFiles(), fix.getUpdates().getFiles())) {
                      if (!isSupersededBy(fix.getResolves().getProblems(), fixToBeUninstalled.getResolves().getProblems())) {
                          return false;
                      }
                  }
              }
              return true;
          }
          return false;
      }
docs: Return true if fixToBeUninstalled can be uninstalled. fixToBeUninstalled can only be uninstalled if there are no file conflicts with other fixes in the installedFixes Set
  that supersedes fixToBeUninstalled
  
  @param installedFixes The set of fixes that is already installed, the set does not include the fixToBeUninstalled
  @param fixToBeUninstalled The fix to be uninstalled
  @return Return true if the fixToBeUninstalled can be uninstalled. False otherwise.