B4J Question Incosistency wait for (func/method) complete (obj as object) between development & production

[Ganiadi]

Hi, All

im facing inconsistency using Wait For(rsmSUB) Complete (lRet As Boolean) mainly when our websocket solution compiled and deployed into production. Sometime ok, sometime raise below error : i tried to debug using Log("START [Function/Method]: " & Main.srvr.CurrentThreadIndex) and Log("END [Function/Method]: " & Main.srvr.CurrentThreadIndex)

It works and runs smoothly and perfect in development mode. can anybody helps what should i do / may be im miss something ?

Tks for your help

 

[Erel]

Make sure to test it in release mode. In debug mode, the threading model of web servers is simplified.

 

[Ganiadi]

Thanks Erel fo the response :
Below is the result : using debug mode / development it works well :

Waiting for debugger to connect...
Program started.
2026-01-30 14:04:03.036:INFO ejs.Server:main: jetty-11.0.9; built: 2022-03-30T17:44:47.085Z; git: 243a48a658a183130a8c8de353178d154ca04f04; jvm 11.0.1+13
2026-01-30 14:04:03.722:INFO ejss.DefaultSessionIdManager:main: Session workerName=node0
X
X
2026-01-30 14:04:05.181:INFO ejs.AbstractConnector:main: Started ServerConnector@654f0d9c{HTTP/1.1, (http/1.1)}{0.0.0.0:7776}
2026-01-30 14:04:05.230:INFO ejs.Server:main: Started Server@20d525{STARTING}[11.0.9,sto=0] @11250ms
Emulated network latency: 200ms
===========================================
START pxWEBPrepared: 0
START pxJSLibRegistration: 0
END pxJSLibRegistration: 0
START CreateDynamicMin: 0
END CreateDynamicMin: 0
START pxInsertHeadCssLink: 0
END pxInsertHeadCssLink: 0
START pxInsertBodyHTML: 0
END pxInsertBodyHTML: 0
START pxInsertBodyScript: 0
END pxInsertBodyScript: 0
END pxWEBPrepared: 0
START GetHostList: 0
END GetHostList: 0
START GetProperties: 0
END GetProperties: 0
6
START CheckLogin: 0
Waiting for value (202 ms)
Waiting for value (200 ms)
Waiting for value (203 ms)
Waiting for value (200 ms)
END CheckLogin: 0


But I tried to run under Release / Release Obsfuscated the error unpredictable :
Below is the sample
when starting it loops many time , and after login it stopped

Waiting for debugger to connect...
Program started.
2026-01-30 14:04:03.036:INFO ejs.Server:main: jetty-11.0.9; built: 2022-03-30T17:44:47.085Z; git: 243a48a658a183130a8c8de353178d154ca04f04; jvm 11.0.1+13
2026-01-30 14:04:03.722:INFO ejss.DefaultSessionIdManager:main: Session workerName=node0
X
X
2026-01-30 14:04:05.181:INFO ejs.AbstractConnector:main: Started ServerConnector@654f0d9c{HTTP/1.1, (http/1.1)}{0.0.0.0:7776}
2026-01-30 14:04:05.230:INFO ejs.Server:main: Started Server@20d525{STARTING}[11.0.9,sto=0] @11250ms
Emulated network latency: 200ms
===========================================
START pxWEBPrepared: 1
START pxJSLibRegistration: 1
END pxJSLibRegistration: 1
START CreateDynamicMin: 1
END CreateDynamicMin: 1
START pxInsertHeadCssLink: 1
END pxInsertHeadCssLink: 1
START pxInsertBodyHTML: 1
END pxInsertBodyHTML: 1
START pxInsertBodyScript: 1
END pxInsertBodyScript: 1
END pxWEBPrepared: 1
START pxWEBPrepared: 2
START pxJSLibRegistration: 2
END pxJSLibRegistration: 2
START CreateDynamicMin: 2
END CreateDynamicMin: 2
START pxInsertHeadCssLink: 2
END pxInsertHeadCssLink: 2
START pxInsertBodyHTML: 2
END pxInsertBodyHTML: 2
START pxInsertBodyScript: 2
END pxInsertBodyScript: 2
END pxWEBPrepared: 2
START GetHostList: 2
END GetHostList: 2
START GetProperties: 2
END GetProperties: 2
6
START CheckLogin: 2
Waiting for value (10 ms)
Waiting for value (0 ms)
Waiting for value (2 ms)
Waiting for value (1 ms)
END CheckLogin: 2
START pxWEBPrepared: 3
START pxJSLibRegistration: 3
END pxJSLibRegistration: 3
START CreateDynamicMin: 3
END CreateDynamicMin: 3
START pxInsertHeadCssLink: 3
END pxInsertHeadCssLink: 3
START pxInsertBodyHTML: 3
END pxInsertBodyHTML: 3
START pxInsertBodyScript: 3
END pxInsertBodyScript: 3
END pxWEBPrepared: 3

java.lang.RuntimeException: java.lang.RuntimeException: Resumable sub already completed
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:140)
at anywheresoftware.b4a.BA$3.run(BA.java:267)
at anywheresoftware.b4a.keywords.SimpleMessageLoop.runMessageLoop(SimpleMessageLoop.java:47)
at anywheresoftware.b4a.StandardBA.startMessageLoop(StandardBA.java:43)
at anywheresoftware.b4j.object.WebSocketModule$Adapter$ThreadHandler.run(WebSocketModule.java:207)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.RuntimeException: Resumable sub already completed
at anywheresoftware.b4a.keywords.Common.WaitFor(Common.java:1073)
at B4J.Px5Solution.px5class$ResumableSub_px5SystemFrontUI.resume(px5class.java:4164)
at anywheresoftware.b4a.BA.checkAndRunWaitForEvent(BA.java:156)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:105)
... 9 more

Tks for helping