预防比较器空指针异常的util
public final class ComparatorUtil { private ComparatorUtil() { throw new AssertionError("Util禁止反射实例化"); } public static <T> int compareTo(Comparable<T> c1, T c2) { return c1 == null || c2 == null ? 0 : c1.compareTo(c2); } }
ComparatorUtil 防止空指针异常
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转载自www.cnblogs.com/zad27/p/11303359.html
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