void (final PackageDependenciesNode treeNode, final StringBuffer denyRules, final StringBuffer allowRules) { final Enumeration enumeration = treeNode.breadthFirstEnumeration(); while (enumeration.hasMoreElements()) { PsiElement childPsiElement = ((PackageDependenciesNode)enumeration.nextElement()).getPsiElement(); if (myIllegalDependencies.containsKey(childPsiElement)) { final Map<DependencyRule, Set<PsiFile>> illegalDeps = myIllegalDependencies.get(childPsiElement); for (final DependencyRule rule : illegalDeps.keySet()) { if (rule.isDenyRule()) { if (denyRules.indexOf(rule.getDisplayText()) == -1) { denyRules.append(rule.getDisplayText()); denyRules.append("\n"); } } else { if (allowRules.indexOf(rule.getDisplayText()) == -1) { allowRules.append(rule.getDisplayText()); allowRules.append("\n"); } } } } } }