We have an application that uses the ecsjtapi library version 7.0.0.64. We recently upgraded to Java 11. After that, we get an error:

2023-05-17 09:27:58,135 [ERROR] [pool-14-thread-3]{JTAPIService$ProviderReInitializer} Failed to start the provider...
java.lang.IllegalArgumentException
at java.base/java.util.concurrent.ThreadPoolExecutor.setCorePoolSize(ThreadPoolExecutor.java:1535)
at com.avaya.jtapi.tsapi.impl.core.JtapiEventThreadManager.execute(JtapiEventThreadManager.java:61)
at com.avaya.jtapi.tsapi.impl.monitor.TsapiProviderMonitor.deliverEvents(TsapiProviderMonitor.java:204)
at com.avaya.jtapi.tsapi.impl.core.TSProviderImpl.sendSnapshot(TSProviderImpl.java:1490)
at com.avaya.jtapi.tsapi.impl.core.TSProviderImpl.addMonitor(TSProviderImpl.java:3314)
at com.avaya.jtapi.tsapi.impl.TsapiProvider.addProviderListener(TsapiProvider.java:1029)
at com.avaya.jtapi.tsapi.impl.LucentV11ProviderImpl.addProviderListener(LucentV11ProviderImpl.java:23)
at com.ini.cti.jtapi.JTAPIService.login(JTAPIService.java:190)
at com.ini.cti.jtapi.JTAPIService$ProviderReInitializer.run(JTAPIService.java:293)
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:829)

Does this mean that we need a different version of the ecsjtapi library, or is it something else?

Thanks.

Jeff Werner
Interactive Northwest, Inc
503-454-1303

Java 11 is not supported with the JTAPI R7 Client
JTAPI R7 client has been out of support since 2018
JTAPI Client R7 was only tested against Java R8.
See
https://www.devconnectprogram.com/fileMedia/download/844e6f85-dd8d-4d7f-87d7-6a41c02a80b7

Is there another JTAPI version (after R7) that does support Java 11? Or is JTAPI dead and so won't ever support Java 11?

JTAPI isnt dead Avaya continues to add content/ build new versions of the client and SDK, but the product team isnt keeping up with Java versions. I am not sure what the hold up is other than Java 8 is still being maintained.

You can try with latest version -
https://www.devconnectprogram.com/site/global/products_resources/avaya_aura_application_enablement_services/releases/8_1_3/index.gsp#download-8

Thank you for the suggestion. However, looking at the ecsjtapia.jar included in the jtapi-sdk-8.1.3.6.0.8 bundle, the method in question (JtapiEventThreadManager) is still setting the core pool size before the maximum pool size, which is what is causing the issue when run with Java 11.

I repeat. Java 11 is not supported with JTAPI 10.1