正确做法： 用 java.util.concurrent.locks.ReentrantLock 代替 synchronized，因为 Lock 的等待可以被 JVM 处理为可卸载。
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The car is precisely what you'd expect: Quick-looking, slightly nutty, and probably not something you'll ever see on the street. We'll see how much of its tech will turn into real products (we're especially interested in those floating wheel covers).
As proposed, a runtime evaluator will need to be “best effort”,
discovered by random testers in production-grade compilers are in their