Confusing error message when setting SEP on a program in a non-existing library #54
Description
V7R5 with server ptfs for Debug Service 3.0.2 installed.
Debug Service Trust store is set up with a cert signed by an external CA (Sectigo) (NOTE: this may also happen with internal certs, but I'm getting a different error there complaining about the cert itself).
When trying to set an SEP for a program in a library that doesn't exist on the system, an error message is thrown: "com.ibm.etools.iseries.services.qsys.rse.SystemMessageException: The TCP/IP network connection to LOCALHOST was dropped."
Debug Console shows:
Connection settings: { 'host': 'USALID08.INFOR.COM', 'port': 8005, 'secure': true, 'capath': 'undefined', 'ignoreCertificateErrors': false, 'TLS_Version': undefined }
From client: initialize({"clientID":"vscode","clientName":"Bob-IDE","adapterID":"IBMiDebug","pathFormat":"path","linesStartAt1":true,"columnsStartAt1":true,"supportsVariableType":true,"supportsVariablePaging":true,"supportsRunInTerminalRequest":true,"locale":"en","supportsProgressReporting":true,"supportsInvalidatedEvent":true,"supportsMemoryReferences":true,"supportsArgsCanBeInterpretedByShell":true,"supportsMemoryEvent":true,"supportsStartDebuggingRequest":true,"supportsANSIStyling":true})
To client: {"seq":0,"type":"response","request_seq":1,"command":"initialize","success":true,"body":{"supportsEvaluateForHovers":true,"supportsSetVariable":true,"supportsValueFormattingOptions":true,"supportsModulesRequest":true,"supportTerminateDebuggee":true,"supportsFunctionBreakpoints":true,"supportsConfigurationDoneRequest":true}}
From client: launch({"type":"IBMiDebug","request":"launch","subType":"sep","action":"set","name":"Service Entry Point","user":"HEYMCHR","password":"Vectra18","host":"USALID08.INFOR.COM","port":8005,"sepDaemonPort":8008,"secure":true,"ignoreCertificateErrors":false,"library":"HEYMCHR","program":"CHGDECFMT","programType":"*PGM","module":"*ALL","procedure":"*ALL","trace":true,"workbenchSettings":{"updateProductionFiles":false,"enableDebugTracing":false},"__sessionId":"2f1909f2-a588-4a39-8c3c-dc85a558acb1"})
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stderr","output":"Connection settings: { 'host': 'USALID08.INFOR.COM', 'port': 8005, 'secure': true, 'capath': 'undefined', 'ignoreCertificateErrors': false, 'TLS_Version': undefined }"}}
To client: {"type":"event","seq":2,"event":"initialized"}
From client: setFunctionBreakpoints({"breakpoints":[]})
To client: {"type":"response","seq":0,"request_seq":3,"success":true,"command":"setFunctionBreakpoints","body":{"breakpoints":[]}}
From client: configurationDone(undefined)
To client: {"type":"response","seq":0,"request_seq":4,"success":true,"command":"configurationDone"}
From client: threads(undefined)
To client: {"type":"response","seq":0,"request_seq":5,"success":true,"command":"threads","body":{"threads":[]}}
To client: {"type":"event","seq":6,"event":"exited","body":{"exitcode":0,"message":"com.ibm.etools.iseries.services.qsys.rse.SystemMessageException: The TCP/IP network connection to LOCALHOST was dropped."}}
To client: {"type":"response","seq":0,"request_seq":2,"success":false,"command":"launch","body":{"error":{"id":"8999","format":"com.ibm.etools.iseries.services.qsys.rse.SystemMessageException: The TCP/IP network connection to LOCALHOST was dropped."}}}
startDebugServiceNavigator.log file shows:
java version "11.0.28" 2025-07-15
IBM Semeru Runtime Certified Edition (build 11.0.28+6)
Eclipse OpenJ9 VM (build openj9-0.53.0, JRE 11 OS/400 ppc64-64-Bit Compressed References 20250905_000000 (JIT enabled, AOT enabled)
OpenJ9 - 017819f167
OMR - 266a8c6f5
JCL - 640b5ea777 based on jdk-11.0.28+6)
Mon Dec 22 15:27:39 Eastern Standard Time 2025
[Debugger] Profile: QDBGSRV
[Debugger] createAS400WithProfileToken 7.6:false
[Debugger] creating QSECOFR
[Debugger] createAS400wPT complete.
[Debugger] HAT Debug elevated profile: sys: localhost
[Debugger] getKey regenerated: false for as400: localhost user:
[Debugger] retrieveKeystoreFileAttributes for system: localhost
[Debugger] programName: /QSYS.LIB/QC3RTVFA.PGM parm2 format name: KSFA0100
[Debugger] program QC3RTVFA run returned true
[Debugger] success: true
[Debugger] retrieved masterKey: 1 status: 1
[Debugger] checkPassword
EQARD1007I The Remote Debug Service daemon started on port 8001.
EQARD1053I The Remote Debug Service daemon started on secured port 8005.
(2025-12-22 15:29:14.0306) Created IBM i connection for SEP (host: LOCALHOST, user: HEYMCHR)
ToolboxConnectorService.internalConnect: connecting LOCALHOST
ToolboxConnectorService.internalConnect(): Login with IBM i UserID and Password
ToolboxConnectorService.internalConnect: connected LOCALHOST
Connected to host LOCALHOST
(2025-12-22 15:29:14.0676) DBGM0021I Initializing service entry points for user HEYMCHR on host USALID08.INFOR.COM.
(2025-12-22 15:29:15.0315) DBGM0021I Initializing service entry points for user HEYMCHR on host USALID08.INFOR.COM.
QSYSObjectService.listObjects(HEYMCHR/CHGDECFMT OBJTYPE(*PGM)): java.lang.Exception: CPF9810 HEYMCHR
The TCP/IP network connection to {0} was dropped.: The TCP/IP network connection to LOCALHOST was dropped.
So, the log shows the CPF9810 which is expected, but setting the SEP shows a completely different and confusing error on the UI.