Scala中的PowerMock:java.lang.NullPointerException当getPackage

这段代码只是getPackage和getName（还没有使用任何模拟技术），但失败了

有人见过这个问题吗

代码：

错误日志：

[info] - test1 *** FAILED ***
[info]   java.lang.NullPointerException:
[info]   at org.apache.tmp.MyTest.test1(MyTest.scala:15)
[info]   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[info]   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[info]   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[info]   at java.lang.reflect.Method.invoke(Method.java:497)
[info]   at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
[info]   at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:310)
[info]   at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
[info]   at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
[info]   at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
[info]   ...

---

我想我找到了答案，但我不明白为什么它会起作用

答：在sbt内部，我们应该首先“设置fork:=true”，然后一切都会正常工作

该问题可能与进程与线程问题有关

[info] - test1 *** FAILED ***
[info]   java.lang.NullPointerException:
[info]   at org.apache.tmp.MyTest.test1(MyTest.scala:15)
[info]   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[info]   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[info]   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[info]   at java.lang.reflect.Method.invoke(Method.java:497)
[info]   at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
[info]   at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:310)
[info]   at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
[info]   at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
[info]   at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
[info]   ...