public class Preconditions extends Object
| 限定符和类型 | 方法和说明 |
|---|---|
static <T> T |
checkNotNull(T obj) |
static <T> T |
checkNotNull(T obj,
String errorMessage) |
static void |
checkTrue(boolean expression) |
static void |
checkTrue(boolean expression,
String errorMessage) |
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