{
  "node_id": "java-61ba5b89d4284c1b9d59436bce805640",
  "keywords": [],
  "children": [
    {
      "Collections工具类": {
        "keywords": [],
        "children": [],
        "node_id": "java-a07f943448184bf985a9f929567ed94e",
        "title": "Collections工具类"
      }
    },
    {
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        "keywords": [],
        "children": [],
        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
        "title": "Arrays工具类"
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    }
  ],
  "export": [],
  "title": "常用工具类"
}