How to use the "java_home" as runtime env

[Nonoas]

I want firstly use "java_home" to run the .exe, so that the user could not install jre for every javafx app.how to do it?

[fvarrui]

Hi @Nonoas!
You just have to not bundle a JRE with your app setting bundleJre=false. I guess that this should do the trick

[fvarrui]

Which JRE have you installed? Is JAVA_HOME env variable well defined?

[fvarrui]

Could you post here your JP config?

[Nonoas]

@fvarrui
java version

java version "17" 2021-09-14 LTS
Java(TM) SE Runtime Environment (build 17+35-LTS-2724)
Java HotSpot(TM) 64-Bit Server VM (build 17+35-LTS-2724, mixed mode, sharing)

JP config

tasks.register('packageMyApp', PackageTask) {
    dependsOn clean, jar
    // mandatory
    mainClass = mainClassName
    // optional
//    modules = ["java.base", "java.management", "java.net.http", "java.scripting", "java.sql",
//               "jdk.jsobject", "jdk.unsupported", "jdk.unsupported.desktop", "jdk.xml.dom"]
    bundleJre = false
    generateInstaller = false
    administratorRequired = false
    winConfig { createZipball = true }

}

[fvarrui]

Is JAVA_HOME env variable well defined?

[Nonoas]

@fvarrui java version

java version "17" 2021-09-14 LTS
Java(TM) SE Runtime Environment (build 17+35-LTS-2724)
Java HotSpot(TM) 64-Bit Server VM (build 17+35-LTS-2724, mixed mode, sharing)

JP config

tasks.register('packageMyApp', PackageTask) {
    dependsOn clean, jar
    // mandatory
    mainClass = mainClassName
    // optional
//    modules = ["java.base", "java.management", "java.net.http", "java.scripting", "java.sql",
//               "jdk.jsobject", "jdk.unsupported", "jdk.unsupported.desktop", "jdk.xml.dom"]
    bundleJre = false
    generateInstaller = false
    administratorRequired = false
    winConfig { createZipball = true }

}

this is output of my java -version , so JAVA_HOME must no problem

[fvarrui]

Sorry, but running java -version only proves that Java is defined in your PATH env variable. Please, run echo %JAVA_HOME% just to be sure.

Anyway, I'll try to reproduce your issue and tell you something asap