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Idea ——使用Junit+Coverage(覆盖率)报错(新版idea)_idea 上 使用junit+coverage(覆盖率)报错

idea 上 使用junit+coverage(覆盖率)报错

摘要

之前用idea写junit 查看代码覆盖率的时候遇到的问题. 
java.lang.reflect.InvocationTargetException…FATAL ERROR in native method: processing of -javaagent failed 
看完之后一脸蒙蔽。。。。好在问题解决了,记录一下解决方法。

遇到问题详细

stack如下


   
   
  1. java.lang.reflect.InvocationTargetException
  2. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  3. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: 62)
  4. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 43)
  5. at java.lang.reflect.Method.invoke(Method.java: 498)
  6. at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java: 386)
  7. at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java: 401)
  8. Caused by: java.lang.reflect.InvocationTargetException
  9. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  10. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: 62)
  11. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 43)
  12. at java.lang.reflect.Method.invoke(Method.java: 498)
  13. at com.intellij.rt.coverage.main.CoveragePremain.premain(CoveragePremain.java: 66)
  14. ... 6 more
  15. Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
  16. at com.intellij.rt.coverage.instrumentation.Instrumentator.premain(Instrumentator.java: 64)
  17. ... 11 more
  18. FATAL ERROR in native method: processing of -javaagent failed
  19. Process finished with exit code 1
  20. Exception in thread "main"
  • 1

解决

  1. 先看一下你自己idea.exe 的位置,这是我的E:\IntelliJ IDEA\IntelliJ IDEA 2016.1.1\bin 
    1
  2. 找到idea.exe.vmoptions这个文件(新版idea在help里面的自定义options里面修改) 
    2
  3. 记事本打开最后加入一行-Djava.io.tmpdir=F:\Temp ,这里要注意 F:\Temp 是随意写的目录,但一定要保证它存在。 
    3
  4. 重新打卡IDEA 在运行就可以啦。 
  5. 有的idea工具用的idea64.exe,所以修改的文件是idea64.exe.vmoptions

参考:
https://blog.csdn.net/Demon2015/article/details/76218029

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