原文:http://www.harding.edu/fmccown/java_csharp_comparison.html Java Program Structure C# package hello; public class HelloWorld {   public static void main(String[] args) {      String name = "Java"; // See if an argument was passed from the comm…

android  java.lang.IllegalArgumentException: Comparison method violates its general contract! 问题 java.lang.IllegalArgumentException: Comparison method violates its general contract! at java.util.TimSort.mergeLo(TimSort.java:) at java.util.TimSort.mer…

Java 异常解决 在你的代码前加一句 System.setProperty("java.util.Arrays.useLegacyMergeSort", "true"); 我也不知道什么原理,可是攻克了!!!哈哈…

这个错误就是写比较器的时候少写了返回值的情况: 比如: Collections.sort(list, new Ordering<QtmSysUserListDto>() { @Override public int compare(QtmSysUserListDto arg0, QtmSysUserListDto arg1) { if(arg0.getFlag().length()>arg1.getFlag().length()){ return -1; }else if(arg0.ge…

Collections.sort(listMonthlyUsage, new Comparator<MonthlyUsageDto>() { //按照元素从小到大排序 @Override public int compare(MonthlyUsageDto o1, MonthlyUsageDto o2) { if(o1.getCstId() > o2.getCstId()) return 1; else return -1; // return o1.getCstId() - o2.ge…

转载:http://www.tuicool.com/articles/MZreyuv 异常信息 java.lang.IllegalArgumentException: Comparison method violates its general contract! at java.util.TimSort.mergeHi(TimSort.java:868) at java.util.TimSort.mergeAt(TimSort.java:485) at java.util.TimSort.me…

catalog . Comparison of parser generators . Writing a simple lexer in PHP . phc . JLexPHP: A PHP Lexer(xx.lex.php) Created By Java By x.lex File Input . JFlex . JLex: A Lexical Analyzer Generator for Java . PhpParser 0. Comparison of parser generator…

1.摘要 前一阵遇到了一个使用Collections.sort()时报异常的问题,跟小伙伴@zhuidawugui 一起排查了一下,发现问题的原因是JDK7的排序实现改为了TimSort,之后我们又进一步研究了一下这个神奇的算法. 2.背景 先说一下为什么要研究这个异常,前几天线上服务器发现日志里有偶发的异常:   1 2 3 4 5 6 7 8 9 java.lang.IllegalArgumentException: Comparison method violates its genera…

Java Program Structure C# package hello; public class HelloWorld {    public static void main(String[] args) {       String name = "Java"; // See if an argument was passed from the command line       if (args.length == 1)          name = args[0]…

生产环境出现的错误排查,错误log如下 java.lang.IllegalArgumentException: Comparison method violates its general contract! at java.util.TimSort.mergeLo(TimSort.java:747) ~[na:1.7.0_40] at java.util.TimSort.mergeAt(TimSort.java:483) ~[na:1.7.0_40] at java.util.TimSort.…