B4J Question JRDC Error handling

Private Sub CheckRDCStatus As ResumableSub

    Dim j As HttpJob
    j.Initialize("", Me)
    j.GetRequest.Timeout = 10000
    j.Download($"http://${rdcPath}:${rdcPort}/test"$)
    Wait For (j) JobDone(j As HttpJob)
    Dim success As Boolean = j.Success
    If success Then
        
        Log(j.GetString)
        
    Else
        Log("Connection failed")
        Log(j.ErrorMessage))
    End If
    j.Release

    Return success

End Sub

RemoteServer is running (2023-03-08 09:32:57)
Connection successful.

'============================================================================================
Public Sub Testconnection(ipaddr As String, port As Int, timeout As Int)As ResumableSub
    Dim testSocket As Socket
    
    ConnStatus = False
        
    If testSocket.IsInitialized = False Then
        testSocket.Initialize("ipc_socket")
        testSocket.Connect(ipaddr, port, timeout)
    End If
        
    Try
        Log("Connect to Server - Wait for Connection")
        Wait for ipc_socket_Connected(Successful As Boolean)
        Log("Connect to Server - Socket Connected")
    Catch
        Log("Connect to Server - Socket try failed")
    End Try
        
    If Successful Then
        Log("Connect to Server - Socket Found")
    
        ConnStatus = True
        testSocket.Close
        Return True
    End If
    Log("Connect to Server - Socket Not Found")
    ConnStatus = False
    Return False
End Sub