IssueTracker

In b/258677934 I found that I could specify r8.runInSeparateProcess by adding this to settings.gradle :

buildscript {
    dependencies {
        classpath "com.android.tools.build:gradle-settings:8.0.0-alpha05"
    }
}

apply(plugin: "com.android.settings")

android {
    execution {
        profiles {
            Jeff {
                r8 {
                    runInSeparateProcess true
                }
            }
        }
        defaultProfile "Jeff"
    }
}

However, when I try to set jvmArgs in the same way, it doesn't have an effect:

android {
    execution {
        profiles {
            Jeff {
                r8 {
                    runInSeparateProcess true
                    setJvmOptions(["-Xms2g", "-Xmx2g"])
                }
            }
        }
        defaultProfile "Jeff"
    }
}

This appears to be because

https://android.googlesource.com/platform/tools/base/+/08c2b7273892834207e8fcc302a89b29eb88d69b/build-system/gradle-core/src/main/java/com/android/build/gradle/internal/tasks/R8Task.kt#587

says

forkOptions.jvmArgs?.addAll(executionOptions.get().jvmArgs)

rather than

forkOptions.jvmArgs(executionOptions.get().jvmArgs)