// Only keep deletion
	deletePatch, deletePatchObj, err := keepOrDeleteNullInJsonPatch(deletePatch, true)
	if err != nil {
		return nil, err
	}

	hasConflicts, err := mergepatch.HasConflicts(addAndChangePatchObj, deletePatchObj)
	if err != nil {
		return nil, err
	}
	if hasConflicts {
		return nil, mergepatch.NewErrConflict(mergepatch.ToYAMLOrError(addAndChangePatchObj), mergepatch.ToYAMLOrError(deletePatchObj))
	}

    }

    /**
     * Informs if there are any batched up conflicts.
     */
    @Override
    public boolean hasConflicts() {
        return !conflicts.isEmpty();
    }

    /**

     */
    PotentialConflict registerCandidate(CANDIDATE candidate);

    /**
     * Informs whether there is any conflict at present
     */
    boolean hasConflicts();

    /**
     * Resolves next conflict and trigger provided action after the resolution
     */
    void resolveNextConflict(Action<RESULT> resolutionAction);

    /**

        CapabilitiesConflictHandler capabilitiesConflictHandler = resolveState.getConflictTracker().getCapabilitiesConflictHandler();

        while (resolveState.peek() != null || moduleConflictHandler.hasConflicts() || capabilitiesConflictHandler.hasConflicts()) {
            if (resolveState.peek() != null) {
                final NodeState node = resolveState.pop();
                LOGGER.debug("Visiting configuration {}.", node);

        String capabilityId = capability.getCapabilityId();

        return capabilityWithoutVersionToNodes.computeIfAbsent(capabilityId, k -> new LinkedHashSet<>());
    }

    @Override
    public boolean hasConflicts() {
        return !conflicts.isEmpty();
    }

    @Override
    public void resolveNextConflict(Action<ConflictResolutionResult> resolutionAction) {
        CapabilityConflict conflict = conflicts.poll();

            return NO_CONFLICT;
        }
        return new HasConflict(conflict.participants);
    }

    static PotentialConflict noConflict() {
        return NO_CONFLICT;
    }

    private static class HasConflict implements PotentialConflict {

        private final Set<ModuleIdentifier> participants;

        private HasConflict(Set<ModuleIdentifier> participants) {
            this.participants = participants;

	}

	// each HTTPMatchRequest of delegate must find a superset in root.
	// otherwise it conflicts
	for _, subMatch := range delegate {
		foundMatch := false
		for _, rootMatch := range root {
			if hasConflict(rootMatch, subMatch) {
				log.Warnf("HTTPMatchRequests conflict: root %v, delegate %v", rootMatch, subMatch)
				continue
			}
			// merge HTTPMatchRequest

				Gateways: []string{"ingress-gateway", "mesh"},
			},
			expected: true,
		},
	}

	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			got := hasConflict(tc.root, tc.leaf)
			if got != tc.expected {
				t.Errorf("got %v, expected %v", got, tc.expected)
			}
		})
	}
}

// Note: this is to prevent missing merge new added HTTPRoute fields