Not working in executable jar about nuix-java-engine-baseline HOT 2 CLOSED

Hello @VelpukondaRameshLio

Can you share the main method of your code? My first guess (without seeing that code) would be that the engine release directory is not being referenced or the engine bin and bin/x86 directories are not on the PATH environment variable (assuming you are on Windows).

If you are attempting to execute one of the examples in the repository, note that they pass on the Java system property value in nuix.engineDir when constructing the EngineWrapper instance.

https://github.com/Nuix/Nuix-Java-Engine-Baseline/blob/master/IntelliJ/src/main/java/com/nuix/javaenginesimple/examples/BasicInitializationExample.java#L29-L34

If you do no supply that as an argument (which your example command does not) then I could imagine an issue like this occurring.

I believe you will want to add a few more startup arguments:

• -Dnuix.engineDir="<ENGINE_RELEASE_DIRECTORY_HERE>"
• -Dnuix.logDir="<LOG_DIRECTORY_HERE>"
• -Djava.io.tmpdir="<TEMP_DIRECTORY_HERE>"

You want to make sure that the PATH environment variable includes the paths to the engine bin and bin/x86 directories. The Gradle build file automatically accomplishes this for you during tests using these lines:

String envPath = engineBinDirectory + ";" + engineX86BinDirectory
...
...
setEnvironment(["PATH":envPath])

https://github.com/Nuix/Nuix-Java-Engine-Baseline/blob/master/IntelliJ/build.gradle#L45
https://github.com/Nuix/Nuix-Java-Engine-Baseline/blob/master/IntelliJ/build.gradle#L76

But when running from a Jar independent of that, the PATH variable needs to be set for the JVM process either by having it configured in the PATH environment variable for the system or user, or starting the JVM using something that can configure that for just the JVM process. An example of this is using SETLOCAL/ENDLOCAL (docs) in a batch file which runs your command. Another example would be starting the JVM process using Process class in .NET which allows you to modify environment variable for a process like this:

Process nuixProcess = new Process();
...
...
string engineBinDir = "<ENGINE_BIN_DIR>";
string enginex86BinDir = "<ENGINE_X86_BIN_DIR>";
string existingPath = Environment.GetEnvironment("PATH");
nuixProcess.StartInfo.EnvironmentVariables.Add("PATH", existingPath+";"+engineBinDir+";"+enginex86BinDir );

from nuix-java-engine-baseline.

So as an example of confirming what the PATH is set to, you could have this code run very early on in your project:

// Print out the current PATH env var as seen by the process this code resides in
String currentPath = System.getenv("PATH");
System.out.println("Current PATH: "+currentPath);

Which should result in output like the following

Current PATH: D:\NuixEngineRelease\bin;D:\NuixEngineRelease\bin\x86

As you can see, my PATH points to both bin and bin/x86 directories of my Nuix engine release.

from nuix-java-engine-baseline.