IntelliJPlatformGradlePlugin/org.jetbrains.intellij.platform.gradle.providers/JavaRuntimeMetadataValueSource/obtain
obtain

open override fun obtain(): Map<String, String>
Sample output:
user@user-kubuntu:~ $ /opt/ideau/jbr/bin/java -XshowSettings:properties -version
Property settings:
    awt.toolkit.name = XToolkit
    file.encoding = UTF-8
    file.separator = /
    intellij.os.virtualization = none
    java.class.path =
    java.class.version = 65.0
    java.home = /opt/ideau/jbr
    java.io.tmpdir = /tmp
    java.library.path = /usr/java/packages/lib
        /usr/lib64
        /lib64
        /lib
        /usr/lib
    java.runtime.name = OpenJDK Runtime Environment
    java.runtime.version = 21.0.4+13-b509.17
    java.specification.name = Java Platform API Specification
    java.specification.vendor = Oracle Corporation
    java.specification.version = 21
    java.vendor = JetBrains s.r.o.
    java.vendor.url = https://openjdk.org/
    java.vendor.url.bug = https://bugreport.java.com/bugreport/
    java.vendor.version = JBR-21.0.4+13-509.17-jcef
    java.version = 21.0.4
    java.version.date = 2024-07-16
    java.vm.compressedOopsMode = Zero based
    java.vm.info = mixed mode
    java.vm.name = OpenJDK 64-Bit Server VM
    java.vm.specification.name = Java Virtual Machine Specification
    java.vm.specification.vendor = Oracle Corporation
    java.vm.specification.version = 21
    java.vm.vendor = JetBrains s.r.o.
    java.vm.version = 21.0.4+13-b509.17
    jbr.virtualization.information = No virtualization detected
    jdk.debug = release
    line.separator = \n
    native.encoding = UTF-8
    os.arch = amd64
    os.name = Linux
    os.version = 6.8.0-47-generic
    path.separator = :
    stderr.encoding = UTF-8
    stdout.encoding = UTF-8
    sun.arch.data.model = 64
    sun.boot.library.path = /opt/ideau/jbr/lib
    sun.cpu.endian = little
    sun.io.unicode.encoding = UnicodeLittle
    sun.java.launcher = SUN_STANDARD
    sun.jnu.encoding = UTF-8
    sun.management.compiler = HotSpot 64-Bit Tiered Compilers
    user.country = GB
    user.dir = /home/sasha
    user.home = /home/sasha
    user.language = en
    user.name = sasha

openjdk version "21.0.4" 2024-07-16
OpenJDK Runtime Environment JBR-21.0.4+13-509.17-jcef (build 21.0.4+13-b509.17)
OpenJDK 64-Bit Server VM JBR-21.0.4+13-509.17-jcef (build 21.0.4+13-b509.17, mixed mode)