Emma 代码覆盖率工具错误 - 找不到主方法

Question

我正在使用Emma代码覆盖工具，我有Java8。我是艾玛的新手，可用的帮助很少。我尝试使用以下链接。

1. http://emma.sourceforge.net/intro.html
2. http://users.csc.calpoly.edu/~jdalbey/309/Lectures/emmademo.html

但是当我尝试运行时，我不断收到以下错误：

java -cp emma.jar emmarun -jar .../jdk1.4.2/demo/jfc/SwingSet2/SwingSet2.jar 
java -cp TestToolsemma.jar;. emmarun -cp . CircleConverter 

我也尝试了这里的选项，但没有帮助。

错误是-

CoverageDemo>java -XX:-UseSplitVerifier -cp TestToolsemma.jar;. emmarun -cp . CircleConverter
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option UseSplitVerifier; support was removed in 8.0
EMMA: no coverage data collected at runtime [all reports will be empty]
EMMA: writing [txt] report to [C:UserspkothavaleDownloadsCoverageDemocoverage.txt] ...
[EMMA v2.0, build 4217]
emmarun: [MAIN_METHOD_NOT_FOUND] application class [CircleConverter] does not have a runnable public main() method
Exception in thread "main" com.vladium.emma.EMMARuntimeException: [MAIN_METHOD_NOT_FOUND] application class [CircleConverter] does not have a runnable public main() method
        at com.vladium.emma.rt.AppRunner._run(AppRunner.java:497)
        at com.vladium.emma.rt.AppRunner.run(AppRunner.java:97)
        at com.vladium.emma.runCommand.run(runCommand.java:247)
        at emmarun.main(emmarun.java:27)
Caused by: java.lang.VerifyError: Expecting a stackmap frame at branch target 11
Exception Details:

Answer 1

实际上，问题是由于这一行：

Caused by: java.lang.VerifyError: Expecting a stackmap frame at branch target 11

我通过此链接找到了解决方案：java.lang.VerifyError：期望在分支目标JDK 1.7上有一个堆栈图帧

但简而言之，java7

引入了更严格的验证，要禁用它，如果您使用的是java7，我们可以添加选项"-XX：-UseSplitVerifier"，如果您在java8中，则可以添加"-noverify"。

所以java8的正确命令行是：

java -noverify -cp emma.jar emmarun -jar .../jdk1.4.2/demo/jfc/SwingSet2/SwingSet2.jar