{"id":823,"date":"2023-04-13T21:36:13","date_gmt":"2023-08-15T13:41:30","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/java-util-concurrentmodificationexception-%e5%8f%af%e4%bb%a5%e7%94%a8-java-util-concurrentmodificationexception%e6%9d%a5%e8%a1%a8%e8%be%be%e3%80%82\/"},"modified":"2025-08-03T10:55:40","modified_gmt":"2025-08-03T02:55:40","slug":"java-util-concurrentmodificationexception-%e5%8f%af%e4%bb%a5%e7%94%a8-java-util-concurrentmodificationexception%e6%9d%a5%e8%a1%a8%e8%be%be%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java-util-concurrentmodificationexception-%e5%8f%af%e4%bb%a5%e7%94%a8-java-util-concurrentmodificationexception%e6%9d%a5%e8%a1%a8%e8%be%be%e3%80%82\/","title":{"rendered":"Java ConcurrentModificationException\u5f02\u5e38\u8be6\u89e3\uff1a\u539f\u56e0\u3001\u89e3\u51b3\u65b9\u6848\u4e0e\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"

\u5728\u4f7f\u7528Java\u96c6\u5408\u7c7b\u65f6\uff0cjava.util.ConcurrentModificationException\uff08\u5e76\u53d1\u4fee\u6539\u5f02\u5e38\uff09\u662f\u975e\u5e38\u5e38\u89c1\u7684\u5f02\u5e38\u3002Java\u96c6\u5408\u7c7b\u662f\u5feb\u901f\u5931\u8d25\uff08fail-fast\uff09\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5982\u679c\u5728\u4f7f\u7528\u8fed\u4ee3\u5668\u904d\u5386\u96c6\u5408\u65f6\uff0c\u96c6\u5408\u88ab\u4fee\u6539\uff0c\u90a3\u4e48\u8c03\u7528\u8fed\u4ee3\u5668\u7684next()\u65b9\u6cd5\u5c06\u629b\u51faConcurrentModificationException\u5f02\u5e38\u3002\u5e76\u53d1\u4fee\u6539\u5f02\u5e38\u53ef\u80fd\u4f1a\u53d1\u751f\u5728\u591a\u7ebf\u7a0b\u548c\u5355\u7ebf\u7a0b\u7684Java\u7f16\u7a0b\u73af\u5883\u4e2d\u3002<\/p>\n

Java\u4e2d\u7684ConcurrentModificationException\u5f02\u5e38<\/h2>\n
\"java.util.ConcurrentModificationException,<\/div>\n
package com.Olivia.ConcurrentModificationException;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.HashMap;\r\nimport java.util.Iterator;\r\nimport java.util.List;\r\nimport java.util.Map;\r\n\r\npublic class ConcurrentModificationExceptionExample {\r\n\r\n\tpublic static void main(String args[]) {\r\n\t\tList<String> myList = new ArrayList<String>();\r\n\r\n\t\tmyList.add(\"1\");\r\n\t\tmyList.add(\"2\");\r\n\t\tmyList.add(\"3\");\r\n\t\tmyList.add(\"4\");\r\n\t\tmyList.add(\"5\");\r\n\r\n\t\tIterator<String> it = myList.iterator();\r\n\t\twhile (it.hasNext()) {\r\n\t\t\tString value = it.next();\r\n\t\t\tSystem.out.println(\"\u5217\u8868\u503c:\" + value);\r\n\t\t\tif (value.equals(\"3\"))\r\n\t\t\t\tmyList.remove(value);\r\n\t\t}\r\n\r\n\t\tMap<String, String> myMap = new HashMap<String, String>();\r\n\t\tmyMap.put(\"1\", \"1\");\r\n\t\tmyMap.put(\"2\", \"2\");\r\n\t\tmyMap.put(\"3\", \"3\");\r\n\r\n\t\tIterator<String> it1 = myMap.keySet().iterator();\r\n\t\twhile (it1.hasNext()) {\r\n\t\t\tString key = it1.next();\r\n\t\t\tSystem.out.println(\"\u6620\u5c04\u503c:\" + myMap.get(key));\r\n\t\t\tif (key.equals(\"2\")) {\r\n\t\t\t\tmyMap.put(\"1\", \"4\");\r\n\t\t\t\t\/\/ myMap.put(\"4\", \"4\");\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t}\r\n}\r\n<\/code><\/pre>\n
\u5f53\u6267\u884c\u4ee5\u4e0a\u7a0b\u5e8f\u65f6\uff0c\u4f1a\u629b\u51fajava.util.ConcurrentModificationException\u5f02\u5e38\uff0c\u5982\u4e0b\u63a7\u5236\u53f0\u65e5\u5fd7\u6240\u793a\u3002<\/p>\n
\u5217\u8868\u503c:1\r\n\u5217\u8868\u503c:2\r\n\u5217\u8868\u503c:3\r\nException in thread \"main\" java.util.ConcurrentModificationException\r\n\tat java.base\/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:937)\r\n\tat java.base\/java.util.ArrayList$Itr.next(ArrayList.java:891)\r\n\tat com.Olivia.ConcurrentModificationException.ConcurrentModificationExceptionExample.main(ConcurrentModificationExceptionExample.java:22)\r\n\r\n<\/code><\/pre>\n
\u4ece\u8f93\u51fa\u7684\u5806\u6808\u8ddf\u8e2a\u6765\u770b\uff0c\u660e\u663e\u53ef\u4ee5\u770b\u51fa\u5f53\u6211\u4eec\u8c03\u7528\u8fed\u4ee3\u5668\u7684next()\u51fd\u6570\u65f6\u4f1a\u629b\u51fa\u5e76\u53d1\u4fee\u6539\u5f02\u5e38\u3002\u5982\u679c\u4f60\u60f3\u77e5\u9053\u8fed\u4ee3\u5668\u5982\u4f55\u68c0\u6d4b\u4fee\u6539\uff0c\u5b83\u7684\u5b9e\u73b0\u5b58\u5728\u4e8eAbstractList\u7c7b\u4e2d\uff0c\u5176\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6574\u6570\u53d8\u91cfmodCount\u3002modCount\u8bb0\u5f55\u4e86\u5217\u8868\u5927\u5c0f\u6539\u53d8\u7684\u6b21\u6570\u3002\u5728\u6bcf\u6b21\u8c03\u7528next()\u51fd\u6570\u65f6\uff0cmodCount\u7684\u503c\u88ab\u7528\u4e8e\u68c0\u67e5\u662f\u5426\u6709\u4efb\u4f55\u4fee\u6539\uff0c\u8fd9\u4e2a\u68c0\u67e5\u662f\u5728\u51fd\u6570checkForComodification()\u4e2d\u8fdb\u884c\u7684\u3002\u73b0\u5728\uff0c\u6ce8\u91ca\u6389\u5217\u8868\u90e8\u5206\u5e76\u518d\u6b21\u8fd0\u884c\u7a0b\u5e8f\uff0c\u4f60\u4f1a\u53d1\u73b0\u73b0\u5728\u6ca1\u6709\u629b\u51faConcurrentModificationException\u5f02\u5e38\u4e86\u3002\u8f93\u51fa\uff1a<\/p>\n
\u6620\u5c04\u503c:3\r\n\u6620\u5c04\u503c:2\r\n\u6620\u5c04\u503c:4\r\n<\/code><\/pre>\n
\u7531\u4e8e\u6211\u4eec\u5728myMap\u4e2d\u66f4\u65b0\u73b0\u6709\u7684\u952e\u503c\u5bf9\uff0cmyMap\u7684\u5927\u5c0f\u6ca1\u6709\u6539\u53d8\uff0c\u6240\u4ee5\u6211\u4eec\u6ca1\u6709\u6536\u5230ConcurrentModificationException\u3002\u8f93\u51fa\u5728\u60a8\u7684\u7cfb\u7edf\u4e2d\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\uff0c\u56e0\u4e3aHashMap\u7684\u952e\u96c6\u4e0d\u50cf\u5217\u8868\u90a3\u6837\u6709\u5e8f\u3002\u5982\u679c\u60a8\u53d6\u6d88\u6ce8\u91ca\u6211\u5728HashMap\u4e2d\u6dfb\u52a0\u65b0\u952e\u503c\u5bf9\u7684\u8bed\u53e5\uff0c\u5c06\u4f1a\u5f15\u53d1ConcurrentModificationException\u3002<\/p>\n
\u4e3a\u907f\u514d\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\u51fa\u73b0ConcurrentModificationException<\/h3>\n
    \n
  1. \u4f60\u53ef\u4ee5\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u6570\u7ec4\uff0c\u7136\u540e\u5728\u6570\u7ec4\u4e0a\u8fdb\u884c\u8fed\u4ee3\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u5c0f\u5230\u4e2d\u7b49\u5927\u5c0f\u7684\u5217\u8868\uff0c\u4f46\u5982\u679c\u5217\u8868\u5f88\u5927\uff0c\u5219\u4f1a\u4e25\u91cd\u5f71\u54cd\u6027\u80fd\u3002<\/li>\n
  2. \u4f60\u53ef\u4ee5\u901a\u8fc7\u5c06\u5217\u8868\u653e\u5728\u540c\u6b65\u5757\u4e2d\u6765\u5728\u8fed\u4ee3\u65f6\u9501\u5b9a\u5217\u8868\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u63a8\u8350\uff0c\u56e0\u4e3a\u4f1a\u53d6\u6d88\u591a\u7ebf\u7a0b\u7684\u597d\u5904\u3002<\/li>\n
  3. \u5982\u679c\u4f60\u4f7f\u7528\u7684\u662fJDK1.5\u6216\u66f4\u9ad8\u7248\u672c\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528ConcurrentHashMap\u548cCopyOnWriteArrayList\u7c7b\u3002\u8fd9\u662f\u63a8\u8350\u7684\u65b9\u6cd5\uff0c\u4ee5\u907f\u514d\u5e76\u53d1\u4fee\u6539\u5f02\u5e38\u3002<\/li>\n<\/ol>\n
    \u4e3a\u4e86\u5728\u5355\u7ebf\u7a0b\u73af\u5883\u4e2d\u907f\u514dConcurrentModificationException<\/h3>\n
    \u4f60\u53ef\u4ee5\u4f7f\u7528\u8fed\u4ee3\u5668\u7684remove()\u51fd\u6570\u6765\u4ece\u5e95\u5c42\u96c6\u5408\u5bf9\u8c61\u4e2d\u5220\u9664\u5bf9\u8c61\u3002\u4f46\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ea\u80fd\u5220\u9664\u76f8\u540c\u7684\u5bf9\u8c61\uff0c\u800c\u4e0d\u80fd\u5220\u9664\u5217\u8868\u4e2d\u7684\u5176\u4ed6\u5bf9\u8c61\u3002\u8ba9\u6211\u4eec\u4f7f\u7528\u5e76\u53d1\u96c6\u5408\u7c7b\u8fd0\u884c\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n
    package com.Olivia.ConcurrentModificationException;\r\n\r\nimport java.util.Iterator;\r\nimport java.util.List;\r\nimport java.util.Map;\r\nimport java.util.concurrent.ConcurrentHashMap;\r\nimport java.util.concurrent.CopyOnWriteArrayList;\r\n\r\npublic class AvoidConcurrentModificationException {\r\n\r\n\tpublic static void main(String[] args) {\r\n\r\n\t\tList<String> myList = new CopyOnWriteArrayList<String>();\r\n\r\n\t\tmyList.add(\"1\");\r\n\t\tmyList.add(\"2\");\r\n\t\tmyList.add(\"3\");\r\n\t\tmyList.add(\"4\");\r\n\t\tmyList.add(\"5\");\r\n\r\n\t\tIterator<String> it = myList.iterator();\r\n\t\twhile (it.hasNext()) {\r\n\t\t\tString value = it.next();\r\n\t\t\tSystem.out.println(\"\u5217\u8868\u503c:\" + value);\r\n\t\t\tif (value.equals(\"3\")) {\r\n\t\t\t\tmyList.remove(\"4\");\r\n\t\t\t\tmyList.add(\"6\");\r\n\t\t\t\tmyList.add(\"7\");\r\n\t\t\t}\r\n\t\t}\r\n\t\tSystem.out.println(\"\u5217\u8868\u5927\u5c0f:\" + myList.size());\r\n\r\n\t\tMap<String, String> myMap = new ConcurrentHashMap<String, String>();\r\n\t\tmyMap.put(\"1\", \"1\");\r\n\t\tmyMap.put(\"2\", \"2\");\r\n\t\tmyMap.put(\"3\", \"3\");\r\n\r\n\t\tIterator<String> it1 = myMap.keySet().iterator();\r\n\t\twhile (it1.hasNext()) {\r\n\t\t\tString key = it1.next();\r\n\t\t\tSystem.out.println(\"\u6620\u5c04\u503c:\" + myMap.get(key));\r\n\t\t\tif (key.equals(\"1\")) {\r\n\t\t\t\tmyMap.remove(\"3\");\r\n\t\t\t\tmyMap.put(\"4\", \"4\");\r\n\t\t\t\tmyMap.put(\"5\", \"5\");\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tSystem.out.println(\"\u6620\u5c04\u5927\u5c0f:\" + myMap.size());\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
    \u4ee5\u4e0a\u7a0b\u5e8f\u7684\u8f93\u51fa\u5982\u4e0b\u6240\u793a\u3002\u60a8\u53ef\u4ee5\u770b\u5230\u7a0b\u5e8f\u6ca1\u6709\u629b\u51faConcurrentModificationException\u7684\u5f02\u5e38\u3002<\/p>\n
    \u5217\u8868\u503c:1\r\n\u5217\u8868\u503c:2\r\n\u5217\u8868\u503c:3\r\n\u5217\u8868\u503c:4\r\n\u5217\u8868\u503c:5\r\n\u5217\u8868\u5927\u5c0f:6\r\n\u6620\u5c04\u503c:1\r\n\u6620\u5c04\u503c:2\r\n\u6620\u5c04\u503c:4\r\n\u6620\u5c04\u503c:5\r\n\u6620\u5c04\u5927\u5c0f:4\r\n<\/code><\/pre>\n
    \u4ece\u4e0a\u9762\u7684\u4f8b\u5b50\u53ef\u4ee5\u770b\u51fa\uff0c<\/p>\n
      \n
    1. \u5e76\u53d1\u96c6\u5408\u7c7b\u53ef\u4ee5\u5b89\u5168\u5730\u88ab\u4fee\u6539\uff0c\u5b83\u4eec\u4e0d\u4f1a\u629b\u51faConcurrentModificationException\u5f02\u5e38\u3002<\/li>\n<\/ol>\n
      \u5728CopyOnWriteArrayList\u7684\u60c5\u51b5\u4e0b\uff0c\u8fed\u4ee3\u5668\u4e0d\u4f1a\u9002\u5e94\u5217\u8868\u4e2d\u7684\u53d8\u5316\uff0c\u800c\u662f\u5bf9\u539f\u59cb\u5217\u8868\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n
      \u5728ConcurrentHashMap\u7684\u60c5\u51b5\u4e0b\uff0c\u884c\u4e3a\u5e76\u4e0d\u603b\u662f\u76f8\u540c\u3002\u5bf9\u4e8e\u6761\u4ef6\uff1a<\/p>\n
      if (key.equals(\"1\")) {\r\n    myMap.remove(\"3\");\r\n}<\/code><\/pre>\n
      \u8f93\u51fa\u7ed3\u679c\u662f\uff1a<\/p>\n
      \u6620\u5c04\u503c:1\r\n\u6620\u5c04\u503c:null\r\n\u6620\u5c04\u503c:4\r\n\u6620\u5c04\u503c:2\r\n\u6620\u5c04\u5927\u5c0f:4\r\n<\/code><\/pre>\n
      \u5b83\u63a5\u53d7\u4e86\u6dfb\u52a0\u4e86\u952e”4″\u7684\u65b0\u5bf9\u8c61\uff0c\u4f46\u6ca1\u6709\u63a5\u53d7\u6dfb\u52a0\u4e86\u952e”5″\u7684\u4e0b\u4e00\u4e2a\u5bf9\u8c61\u3002\u73b0\u5728\uff0c\u5982\u679c\u6211\u5c06\u6761\u4ef6\u66f4\u6539\u4e3a\u4ee5\u4e0b\u60c5\u51b5\u3002<\/p>\n
      if (key.equals(\"3\")) {\r\n    myMap.remove(\"2\");\r\n}<\/code><\/pre>\n
      \u8f93\u51fa\u7ed3\u679c\u662f\uff1a<\/p>\n
      \u6620\u5c04\u503c:1\r\n\u6620\u5c04\u503c:3\r\n\u6620\u5c04\u503c:null\r\n\u6620\u5c04\u5927\u5c0f:4\r\n<\/code><\/pre>\n
      \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u4e0d\u8003\u8651\u65b0\u6dfb\u52a0\u7684\u5bf9\u8c61\u3002\u6240\u4ee5\u5982\u679c\u4f60\u4f7f\u7528ConcurrentHashMap\uff0c\u907f\u514d\u6dfb\u52a0\u65b0\u5bf9\u8c61\uff0c\u56e0\u4e3a\u5b83\u53ef\u80fd\u6839\u636e\u952e\u96c6\u5408\u8fdb\u884c\u5904\u7406\u3002\u8bf7\u6ce8\u610f\uff0c\u76f8\u540c\u7684\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u5728\u60a8\u7684\u7cfb\u7edf\u4e2d\u6253\u5370\u4e0d\u540c\u7684\u503c\uff0c\u56e0\u4e3aHashMap\u7684\u952e\u96c6\u5408\u662f\u65e0\u5e8f\u7684\u3002<\/p>\n
      \u4f7f\u7528for\u5faa\u73af\u6765\u907f\u514djava.util.ConcurrentModificationException<\/h3>\n
      \u5982\u679c\u4f60\u5728\u5355\u7ebf\u7a0b\u73af\u5883\u4e2d\u5de5\u4f5c\uff0c\u5e76\u4e14\u5e0c\u671b\u4f60\u7684\u4ee3\u7801\u80fd\u591f\u5904\u7406\u5217\u8868\u4e2d\u65b0\u589e\u52a0\u7684\u989d\u5916\u5bf9\u8c61\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u4f7f\u7528for\u5faa\u73af\u6765\u5b9e\u73b0\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u8fed\u4ee3\u5668\u3002<\/p>\n
      for (int i = 0; i < myList.size(); i++) {\r\n    System.out.println(myList.get(i));\r\n    if (myList.get(i).equals(\"3\")) {\r\n        myList.remove(i);\r\n        i--;\r\n        myList.add(\"6\");\r\n    }\r\n}\r\n<\/code><\/pre>\n
      \u8bf7\u6ce8\u610f\uff0c\u6211\u5728\u51cf\u5c11\u8ba1\u6570\u5668\uff0c\u56e0\u4e3a\u6211\u6b63\u5728\u79fb\u9664\u76f8\u540c\u7684\u5bf9\u8c61\uff0c\u5982\u679c\u60a8\u9700\u8981\u79fb\u9664\u4e0b\u4e00\u4e2a\u6216\u66f4\u8fdc\u7684\u5bf9\u8c61\uff0c\u5219\u65e0\u9700\u51cf\u5c11\u8ba1\u6570\u5668\u3002\u60a8\u53ef\u4ee5\u81ea\u884c\u5c1d\u8bd5\u3002:) \u8fd8\u6709\u4e00\u4ef6\u4e8b\uff1a\u5982\u679c\u60a8\u5c1d\u8bd5\u4f7f\u7528\u5b50\u5217\u8868\u4fee\u6539\u539f\u59cb\u5217\u8868\u7684\u7ed3\u6784\uff0c\u60a8\u5c06\u4f1a\u6536\u5230ConcurrentModificationException\u5f02\u5e38\u3002\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u6765\u770b\u770b\u3002<\/p>\n
      package com.Olivia.ConcurrentModificationException;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\n\r\npublic class ConcurrentModificationExceptionWithArrayListSubList {\r\n\r\n\tpublic static void main(String[] args) {\r\n\r\n\t\tList<String> names = new ArrayList<>();\r\n\t\tnames.add(\"Java\");\r\n\t\tnames.add(\"PHP\");\r\n\t\tnames.add(\"SQL\");\r\n\t\tnames.add(\"Angular 2\");\r\n\r\n\t\tList<String> first2Names = names.subList(0, 2);\r\n\r\n\t\tSystem.out.println(names + \" , \" + first2Names);\r\n\r\n\t\tnames.set(1, \"JavaScript\");\r\n\t\t\/\/ \u68c0\u67e5\u4e0b\u9762\u7684\u8f93\u51fa\u3002:)\r\n\t\tSystem.out.println(names + \" , \" + first2Names);\r\n\r\n\t\t\/\/ \u8ba9\u6211\u4eec\u4fee\u6539\u5217\u8868\u5927\u5c0f\u5e76\u83b7\u53d6ConcurrentModificationException\r\n\t\tnames.add(\"NodeJS\");\r\n\t\tSystem.out.println(names + \" , \" + first2Names); \/\/ \u8fd9\u4e00\u884c\u629b\u51fa\u5f02\u5e38\r\n\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
      \u4e0a\u8ff0\u7a0b\u5e8f\u7684\u8f93\u51fa\u7ed3\u679c\u662f\uff1a<\/p>\n
      [Java, PHP, SQL, Angular 2] , [Java, PHP]\r\n[Java, JavaScript, SQL, Angular 2] , [Java, JavaScript]\r\nException in thread \"main\" java.util.ConcurrentModificationException\r\n\tat java.base\/java.util.ArrayList$SubList.checkForComodification(ArrayList.java:1282)\r\n\tat java.base\/java.util.ArrayList$SubList.listIterator(ArrayList.java:1151)\r\n\tat java.base\/java.util.AbstractList.listIterator(AbstractList.java:311)\r\n\tat java.base\/java.util.ArrayList$SubList.iterator(ArrayList.java:1147)\r\n\tat java.base\/java.util.AbstractCollection.toString(AbstractCollection.java:465)\r\n\tat java.base\/java.lang.String.valueOf(String.java:2801)\r\n\tat java.base\/java.lang.StringBuilder.append(StringBuilder.java:135)\r\n\tat com.Olivia.ConcurrentModificationException.ConcurrentModificationExceptionWithArrayListSubList.main(ConcurrentModificationExceptionWithArrayListSubList.java:26)\r\n<\/code><\/pre>\n
      \u6839\u636eArrayList subList\u7684\u6587\u6863\uff0c\u53ea\u5141\u8bb8\u5728subList\u65b9\u6cd5\u8fd4\u56de\u7684\u5217\u8868\u4e0a\u8fdb\u884c\u7ed3\u6784\u6027\u4fee\u6539\u3002\u8fd4\u56de\u7684\u5217\u8868\u4e0a\u7684\u6240\u6709\u65b9\u6cd5\u9996\u5148\u68c0\u67e5\u5907\u7528\u5217\u8868\u7684\u5b9e\u9645modCount\u662f\u5426\u7b49\u4e8e\u5176\u9884\u671f\u503c\uff0c\u5e76\u5728\u4e0d\u76f8\u7b49\u65f6\u629b\u51faConcurrentModificationException\u5f02\u5e38\u3002<\/p>\n
      \u60a8\u53ef\u4ee5\u4ece\u6211\u4eec\u7684GitHub\u5b58\u50a8\u5e93\u4e2d\u4e0b\u8f7d\u6240\u6709\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5728\u4f7f\u7528Java\u96c6\u5408\u7c7b\u65f6\uff0cjava.util.ConcurrentModificationException\uff08\u5e76 […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2173,1196,1402],"class_list":["post-823","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-concurrentmodificationexception","tag-java"],"yoast_head":"\nJava ConcurrentModificationException\u5f02\u5e38\u8be6\u89e3\uff1a\u539f\u56e0\u3001\u89e3\u51b3\u65b9\u6848\u4e0e\u6700\u4f73\u5b9e\u8df5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u6df1\u5165\u89e3\u6790Java ConcurrentModificationException\u5f02\u5e38\u7684\u4ea7\u751f\u539f\u56e0\uff0c\u63d0\u4f9b\u5b9e\u7528\u7684\u89e3\u51b3\u65b9\u6848\u548c\u6700\u4f73\u5b9e\u8df5\u3002\u4e86\u89e3\u5982\u4f55\u5728\u904d\u5386\u96c6\u5408\u65f6\u907f\u514d\u6b64\u5f02\u5e38\uff0c\u638c\u63e1Java\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u5f02\u5e38\u5904\u7406\u6280\u5de7\uff0c\u63d0\u5347\u4ee3\u7801\u8d28\u91cf\u548c\u7a33\u5b9a\u6027\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/java-util-concurrentmodificationexception-\u53ef\u4ee5\u7528-java-util-concurrentmodificationexception\u6765\u8868\u8fbe\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java ConcurrentModificationException\u5f02\u5e38\u8be6\u89e3\uff1a\u539f\u56e0\u3001\u89e3\u51b3\u65b9\u6848\u4e0e\u6700\u4f73\u5b9e\u8df5\" \/>\n<meta property=\"og:description\" content=\"\u6df1\u5165\u89e3\u6790Java ConcurrentModificationException\u5f02\u5e38\u7684\u4ea7\u751f\u539f\u56e0\uff0c\u63d0\u4f9b\u5b9e\u7528\u7684\u89e3\u51b3\u65b9\u6848\u548c\u6700\u4f73\u5b9e\u8df5\u3002\u4e86\u89e3\u5982\u4f55\u5728\u904d\u5386\u96c6\u5408\u65f6\u907f\u514d\u6b64\u5f02\u5e38\uff0c\u638c\u63e1Java\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u5f02\u5e38\u5904\u7406\u6280\u5de7\uff0c\u63d0\u5347\u4ee3\u7801\u8d28\u91cf\u548c\u7a33\u5b9a\u6027\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java-util-concurrentmodificationexception-\u53ef\u4ee5\u7528-java-util-concurrentmodificationexception\u6765\u8868\u8fbe\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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