$p='C:\Users\ytd_extdev_0903\incoming\jeecg-system-start-3.5.3.NEW.jar'
if(Test-Path $p){ $i=Get-Item $p; "exists length=$($i.Length) time=$($i.LastWriteTime)" } else { 'missing NEW jar' }
Get-Process java -EA SilentlyContinue | Select-Object Id | Measure-Object | ForEach-Object { "java_count=$($_.Count)" }