gatling.bat does not start because of missing jvm.dll

[simdevmon]

When I execute gatling.bat I get the following error message

C:\Portable\gatling-charts-highcharts-bundle-2.1.7\bin>gatling.bat
GATLING_HOME is set to "C:\Portable\gatling-charts-highcharts-bundle-2.1.7"
Error: missing server' JVM atC:\Program Files (x86)\Java\jre1.8.0_66\bin\server\jvm.dll'.
Please install or use the JRE or JDK that contains these missing components.

I am using the following environment

• Windows 10 Pro x64
• JRE 1.8.0_66 x86 / JDK 1.8.0_66 (installed JDK bundle Windows x86 from Oracle)
• Gatling 2.1.7

The recorder.bat works without any problems.

I found the following workaround:
Copy server directory from C:\Program Files (x86)\Java\jdk1.8.0_66\jre\bin to C:\Program Files (x86)\Java\jre1.8.0_66\bin.
In my opinion it would be better if gatling.bat would be executable straight away after a default installation of JavaSE.

[slandelle]

Your issue is that your JAVA_HOME points to your JRE instead of your JDK. As explained in the install doc, Gatling needs a JDK, a JRE is not sufficient.

[simdevmon]

The JAVA_HOME is set to JDK

C:>echo %JAVA_HOME%
C:\Program Files (x86)\Java\jdk1.8.0_66

However by default Oracle creates an entry for PATH with the value C:\PROGRAMDATA\ORACLE\JAVA\JAVAPATH that points to the JRE.

I still think it would be better to prefer JAVA_HOME over the default path if set.

[slandelle]

Mmm, it seems that JAVA_HOME is being ignored in gatling.bat...

[simdevmon]

Yes, this is what I mean. It should be something like this.

set JAVA=java
if exist "%JAVA_HOME%\bin\java.exe" goto gotSetJavaHome
goto gotRun

:gotSetJavaHome
set JAVA="%JAVA_HOME%\bin\java.exe"

:gotRun
rem Run the compiler
set COMPILATION_CLASSPATH=""
for %%i in ("%GATLING_HOME%\lib\*.jar") do call :addToPath "%%i"
%JAVA% %COMPILER_OPTS% -cp %COMPILER_CLASSPATH% io.gatling.compiler.ZincCompiler -ccp %COMPILATION_CLASSPATH% %USER_ARGS%  2>NUL
rem Run Gatling
%JAVA% %JAVA_OPTS% -cp %GATLING_CLASSPATH% io.gatling.app.Gatling %USER_ARGS%

If you like I can also create a PR for this.

[slandelle]

@simdevmon thanks!