模拟java.sql.TimeStamp时的AssertionError

Question

请在下面找到我的java代码。

Timestamp timestamp = PowerMock.createMock(Timestamp.class);
PowerMock.expectNew(Timestamp.class, new Class[] {long.class}, System.currentTimeMillis()).andReturn(timestamp).times(2);
PowerMock.replay(timestamp, Timestamp.class);
PowerMock.verify(timestamp, Timestamp.class);

然后我得到以下错误

  

java.lang.AssertionError：验证时出现预期失败：       java.sql.Timestamp（1431344562673）：expected：1，actual：0 at org.powermock.api.easymock.internal.invocationcontrol.NewInvocationControlAssertionError.throwAssertionErrorForNewSubstitutionFailure（NewInvocationControlAssertionError.java:21）     在   org.powermock.api.easymock.PowerMock.verifyClass（PowerMock.java:2279）     在org.powermock.api.easymock.PowerMock.verify（PowerMock.java:1646）

为什么？