Launching PointOfSale from LoadRunerVugen-change in user.hooks loads the application but no recording and vice versa when recording not launching

Question

The application is java based and it launches the application with help of xml file in accordance it calls all jar files using batch file. I am using LoadRunner vugen protocol Java record replay and triggers the application but when its launching its not recording and vice versa when recording not launching - this happens when I change in user.hook file if you can help me to understand about this user.hook file (classes folder) that would be great

Please find the format of user.hooks used below

; User Hooks definition file
; This file can be modified in order to place user specific hooks

;--------------------------- Hooks Section --------------------

; This is a sample hook -

[Hook-Name]
;---------- ClassName-MethodName --------

class      = MyPackage.MyClass
method     = MyMethod
signature  = ()V
cb_class   = mercury.ProtocolSupport
general_cb = true

;[Instance]
;---------- Stub hooks --------
;class      = !XXXXXXXXX.system.engine..*
;method     = !.*
;signature  = !.*
;cb_class   = mercury.rmi.RMISupport
;general_cb = true


[PosThread]
;---------- Stub hooks --------
class      = !XXXXXXXXX.system.engine.PosThread..*
method     = XXXXXXX
signature  = !.*
cb_class   = mercury.rmi.RMISupport
general_cb = true

;[GeneralResponse]
;---------- Stub hooks --------
;class      = !XXXXXXXXX.XXXXXXXXX.db..*
;method     = !.*
;signature  = !.*
;cb_class   = mercury.rmi.RMISupport
;general_cb = true

[ClientHTTPServer]
;---------- Stub hooks --------
class      = XXXXXXXX.system.common.ClientHTTPServer
method     = !.*
signature  = !.*
ignore_mtd = !fetchEqual
cb_class   = mercury.rmi.RMISupport
general_cb = true

;[GeneralRequestor]
;---------- Stub hooks --------
;class      = XXXXXXX.system.common.GeneralRequestor
;method     = connectToServer
;signature  = !.*
;cb_class   = mercury.rmi.RMISupport
;general_cb = true

;[GeneralRequestor_pr]
;---------- Stub hooks --------
;class      = XXXXXXX.system.common.GeneralRequestor
;method     = process`enter code here`
;signature  = !.*
;cb_class   = mercury.rmi.RMISupport
;general_cb = true