B4J Question GetSystemProperty - whole key list?

[Blitzer]

log (GetSystemProperty ("whole key list", ""))

'Non-UI application (console / server application)
#Region Project Attributes
    #CommandLineArgs:
    #MergeLibraries: True
#End Region

Sub Process_Globals
   
End Sub

Sub AppStart (Args() As String)
    Log(GetSystemProperty("os.name", ""))
    Log(GetSystemProperty("os.arch", ""))
    Log(GetSystemProperty("user.dir", ""))
    Log(GetSystemProperty("user.home", ""))
    Log(GetSystemProperty("AppData", ""))
    Log(GetSystemProperty("java.version", ""))
    Log(GetSystemProperty("java.home", ""))
    Log(GetSystemProperty("file.separator", ""))
End Sub

Is there a whole key list somewhere?

Blitzer

 

[stevel05]

I don't know how old this page is but there is a list here: http://journals.ecs.soton.ac.uk/java/tutorial/java/system/properties.html

google "java system properties", you may find a more up to date list if it's changed.

 

[tchart]

The attached project uses inline Java to get all of the System Properties as a Map (using getJVMSystemProperties).

It returns a map with all keys and values.

Code is also shown here; https://www.b4x.com/android/forum/threads/return-b4x-map-from-inline-java.123221/

NOTE: The inline java code has to be in a class module.

 

[Erel]

Another option:

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
    Dim props As Map = GetSystemProperties
    For Each k As String In props.Keys
        Log($"${k}: ${props.Get(k)}"$)
    Next
End Sub

Sub GetSystemProperties As Map
    Dim jo As JavaObject
    jo = jo.InitializeStatic("java.lang.management.ManagementFactory").RunMethod("getRuntimeMXBean", Null)
    Dim m As JavaObject
    m.InitializeNewInstance("anywheresoftware.b4a.objects.collections.Map$MyMap", Null)
    m.RunMethod("putAll", Array(jo.RunMethod("getSystemProperties", Null)))
    Return m
End Sub