How to use

addRules

method

in

org.eclipse.jdt.internal.launching.environments.ExecutionEnvironment

@Override
public IAccessRule[][] getAccessRules(IVMInstall vm, LibraryLocation[] libraries, IJavaProject project) {
  IAccessRuleParticipant[] participants = getParticipants();
  Map<IAccessRuleParticipant, IAccessRule[][]> rulesByParticipant = collectRulesByParticipant(participants, vm, libraries, project);
  synchronized (this) {
    Map<IAccessRuleParticipant, IAccessRule[][]> cachedRules = fParticipantMap.get(vm);
    if (cachedRules == null || !cachedRules.equals(rulesByParticipant)) {
      ArrayList<List<IAccessRule>> libLists = new ArrayList<List<IAccessRule>>(); // array of lists of access rules
      for (int i = 0; i < libraries.length; i++) {
        libLists.add(new ArrayList<IAccessRule>());
      }
      for (int i = 0; i < participants.length; i++) {
        IAccessRuleParticipant participant = participants[i];
        addRules(rulesByParticipant.get(participant), libLists);
      }
      IAccessRule[][] allRules = new IAccessRule[libraries.length][];
      for (int i = 0; i < libLists.size(); i++) {
        List<IAccessRule> l = libLists.get(i);
        allRules[i] = l.toArray(new IAccessRule[l.size()]);
      }
      fParticipantMap.put(vm, rulesByParticipant);
      fRuleCache.put(vm, allRules);
      return allRules;
    }
    return fRuleCache.get(vm);
  }
}

@Override
public IAccessRule[][] getAccessRules(IVMInstall vm, LibraryLocation[] libraries, IJavaProject project) {
  IAccessRuleParticipant[] participants = getParticipants();
  Map<IAccessRuleParticipant, IAccessRule[][]> rulesByParticipant = collectRulesByParticipant(participants, vm, libraries, project);
  synchronized (this) {
    Map<IAccessRuleParticipant, IAccessRule[][]> cachedRules = fParticipantMap.get(vm);
    if (cachedRules == null || !cachedRules.equals(rulesByParticipant)) {
      ArrayList<List<IAccessRule>> libLists = new ArrayList<>(); // array of lists of access rules
      for (int i = 0; i < libraries.length; i++) {
        libLists.add(new ArrayList<IAccessRule>());
      }
      for (int i = 0; i < participants.length; i++) {
        IAccessRuleParticipant participant = participants[i];
        addRules(rulesByParticipant.get(participant), libLists);
      }
      IAccessRule[][] allRules = new IAccessRule[libraries.length][];
      for (int i = 0; i < libLists.size(); i++) {
        List<IAccessRule> l = libLists.get(i);
        allRules[i] = l.toArray(new IAccessRule[l.size()]);
      }
      fParticipantMap.put(vm, rulesByParticipant);
      fRuleCache.put(vm, allRules);
      return allRules;
    }
    return fRuleCache.get(vm);
  }
}