Sponsor Request: Running jtreg plugin can fail with NoClassDefFoundError: com/beust/jcommander/ParameterException

[Maurizio Cimadamore]

I don't have jcommander.jar in my jtreg/lib folder.

Jon, do you know if the list of bundled libraries changes on a 
per-platform basis?

Thanks
Maurizio

On 01/04/2020 14:34, Jorn Vernee wrote:
> Hi,
>
> When running a jtreg run configuration with the intellij jtreg plugin 
> I am running into:
>
> java.lang.NoClassDefFoundError: com/beust/jcommander/ParameterException
>     at 
> com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:87)
>     at 
> com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:54)
>     at 
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
> Method)
>     at 
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>     at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.base/java.lang.reflect.Method.invoke(Method.java:564)
>     at 
> com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
>     at java.base/java.lang.Thread.run(Thread.java:832)
> Caused by: java.lang.ClassNotFoundException: 
> com.beust.jcommander.ParameterException
>     at 
> java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606)
>     at 
> java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
>     at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
>     ... 8 more
>
> It looks like the jcommander jar is missing from the runtime class 
> path. Following change fixes it for me [1]. I've also added the jcov 
> jars just in case, since they ship with jtreg, and might also be 
> needed at some point, though the particular problem I'm seeing is 
> fixed if I only add the jcommander jar.
>
> Thanks,
> Jorn
>
> [1]:
>
> diff --git 
> a/plugins/idea/src/com/oracle/plugin/jtreg/configuration/JTRegConfigurationRunnableState.java 
> b/plugins/idea/src/com/oracle/plugin/jtreg/configuration/JTRegConfigurationRunnableState.java 
>
> index d79f503..a813ac9 100644
> --- 
> a/plugins/idea/src/com/oracle/plugin/jtreg/configuration/JTRegConfigurationRunnableState.java
> +++ 
> b/plugins/idea/src/com/oracle/plugin/jtreg/configuration/JTRegConfigurationRunnableState.java
> @@ -158,6 +158,9 @@ class JTRegConfigurationRunnableState extends 
> JavaTestFrameworkRunnableState<JTR
> javaParameters.getClassPath().add(jtregSettings.getJTRegDir() + 
> "/lib/testng.jar");
> javaParameters.getClassPath().add(jtregSettings.getJTRegDir() + 
> "/lib/junit.jar");
> javaParameters.getClassPath().add(jtregSettings.getJTRegDir() + 
> "/lib/asmtools.jar");
> + javaParameters.getClassPath().add(jtregSettings.getJTRegDir() + 
> "/lib/jcommander.jar");
> + javaParameters.getClassPath().add(jtregSettings.getJTRegDir() + 
> "/lib/jcov.jar");
> + javaParameters.getClassPath().add(jtregSettings.getJTRegDir() + 
> "/lib/jcov_network_saver.jar");
>      }
>
>      protected void configureRTClasspath(JavaParameters 
> javaParameters, Module module) throws CantRunException {
>