In Ubuntu. when you get this error.
java.lang.NoClassDefFoundError: org/tanukisoftware/wrapper/WrapperListener
Maybe you can try set app.parameter(wrapper.conf) as below.

wrapper.app.parameter.1=
wrapper.app.parameter.2=YourParamenter

Let first row empty, due to it can not detect the parameter from first row.

My environment:
wrapper version 3.3.9
ubuntu server 20.04
java 8

Send multiple attacment with powershell email

Here is the sample:

Send-MailMessage -From $emailfrom  -To $emailto -Credential $Credential -SmtpServer $emailserver -port $emailport -Subject "testing" -body $emailbody -attachment @("D:\1.txt","D:\2.txt","D:\3.txt")