Set impersonate="true" cause failed to call jar file

Dear All Expert,
I ready need all ur help, on currently i have one web application is running to call the jar file in web (Login Checking), but after i try to change the setting identity impersonate="true", the jar file cannot be call and running. I set the Virtual Directory as anonymously access, and set the Application ID (In Administrator Group) in IIS. I try a few time checking, after i set the impersonate="true", i will get the message
Faulting application java.exe, version 6.0.210.7, faulting module ntdll.dll, version 5.2.3790.3959, fault address 0x000000000003a7c0
 
below is the script used to call the jar file
Dim strArgu As String = "" Dim processJar = New System.Diagnostics.Process() strArgu = " -classpath cryptcare.jar;commons-codec-1.3.jar com.xx.care.ldapcontrols.LDAPConnector ""LOGON""" & " ...