Can't run Maven and Gradle By NGrinder Controller

[binary-river]

1. Describe the bug 🐞

Can't find Maven and Gradle when running NGrinder Controller even though maven_home and gradle_home are set already.
( I think it happens only on windows. Reason will be described below )

It seems this problem caused by InstallationChecker.java file. ( ngrinder-controller/src/main/java/org/ngrinder/starter/InstallationChecker.java)

first and second line of enum, there's command only "mvn -version", "gradle -version".
Unfortunately, on windows, that doens't work. Those only works on linux and might be mac.
On windows platform, that command should be changed to "mvn.cmd -version", "gradle.bat -version"

I hope it will help this project.

2. Reproduction steps

1. Go to directory Ngrinder controller war file exists.
2. run war file using java command "java -Djava.io.tmpdir=%NGRINDER_HOME%\lib -jar [warfilename].war
3. See error :
   "WARNING: Maven isn't installed, You can't run Maven groovy scripts. Please install Maven and set MAVEN_HOME."
   "WARNING: Gradle isn't installed, You can't run Gradle groovy scripts. Please install Gradle and set GRADLE_HOME."

3. Environment

• Controller
  • OS: Windows NT
  • Browser: none
  • JDK version: 14
  • Controller version: 3.5.8

4. Screenshots

If necessary, add screenshots to help explain your problem.

[hlgaza]

I'm having a similar problem where ngrinder cannot find GRADLE_HOME, but in my installation gradle -version works fine.