We upgraded RegClient to Java 21 in one of the environments, and since then, RegClient has not been launching properly.
Please find the attached screenshot and logs for your reference.
2026-02-03 09:34:57,247 INFO [JavaFX Application Thread] i.m.r.u.ClientSetupValidator : Loading props/mosip-application.properties completed
2026-02-03 09:34:57,280 INFO [JavaFX Application Thread] i.m.r.u.SoftwareUpdateUtil : invoking url : https://regclient.niradev1.idencode.link/registration-client/1.3.0-beta.2/MANIFEST.MF
2026-02-03 09:34:59,049 INFO [JavaFX Application Thread] i.m.r.u.ClientSetupValidator : Checksum validation started with manifest version : 1.3.0-beta.2
2026-02-03 09:35:02,859 INFO [JavaFX Application Thread] i.m.r.u.ClientSetupValidator : Checksum validation completed validation_failed : false, patch_downloaded : false
2026-02-03 09:35:02,910 INFO [JavaFX-Launcher] i.m.r.u.ClientIntegrityValidator : Loading props/mosip-application.properties completed
2026-02-03 09:35:02,945 INFO [JavaFX-Launcher] i.m.r.u.ClientIntegrityValidator : Integrity check started → lib\registration-services-1.3.0-beta.2.jar
2026-02-03 09:35:03,054 INFO [JavaFX-Launcher] i.m.r.u.ClientIntegrityValidator : Integrity check passed → registration-services-1.3.0-beta.2.jar
2026-02-03 09:35:03,060 INFO [JavaFX-Launcher] i.m.r.u.ClientIntegrityValidator : Integrity check started → lib\registration-client-1.3.0-beta.2.jar
2026-02-03 09:35:03,529 INFO [JavaFX-Launcher] i.m.r.u.ClientIntegrityValidator : Integrity check passed → registration-client-1.3.0-beta.2.jar
2026-02-03 09:35:17,362 ERROR [JavaFX-Launcher] i.m.r.c.ClientApplication : Application Initialization Error
java.lang.IllegalArgumentException: Unable to instantiate factory class: org.springframework.boot.autoconfigure.AutoConfigurationImportFilter
at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:163)
at org.springframework.core.io.support.SpringFactoriesLoader.loadFactories(SpringFactoriesLoader.java:101)
at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.getAutoConfigurationImportFilters(AutoConfigurationImportSelector.java:266)
at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.filter(AutoConfigurationImportSelector.java:237)
at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.selectImports(AutoConfigurationImportSelector.java:102)
at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector$AutoConfigurationGroup.process(AutoConfigurationImportSelector.java:386)
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGrouping.getImports(ConfigurationClassParser.java:830)
at org.springframework.context.annotation.ConfigurationClassParser.processDeferredImportSelectors(ConfigurationClassParser.java:563)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:188)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:316)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:233)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.(AnnotationConfigApplicationContext.java:88)
at io.mosip.registration.controller.ClientApplication.init(ClientApplication.java:84)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(Unknown Source)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalArgumentException: Class [org.springframework.boot.autoconfigure.condition.OnBeanCondition] is not assignable to [org.springframework.boot.autoconfigure.AutoConfigurationImportFilter]
at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:158)
… 19 common frames omitted
2026-02-03 09:35:17,381 ERROR [JavaFX Application Thread] i.m.r.p.ClientPreLoader : Unable to instantiate factory class: org.springframework.boot.autoconfigure.AutoConfigurationImportFilter
java.lang.IllegalArgumentException: Unable to instantiate factory class: org.springframework.boot.autoconfigure.AutoConfigurationImportFilter
at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:163)
at org.springframework.core.io.support.SpringFactoriesLoader.loadFactories(SpringFactoriesLoader.java:101)
at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.getAutoConfigurationImportFilters(AutoConfigurationImportSelector.java:266)
at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.filter(AutoConfigurationImportSelector.java:237)
at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.selectImports(AutoConfigurationImportSelector.java:102)
at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector$AutoConfigurationGroup.process(AutoConfigurationImportSelector.java:386)
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGrouping.getImports(ConfigurationClassParser.java:830)
at org.springframework.context.annotation.ConfigurationClassParser.processDeferredImportSelectors(ConfigurationClassParser.java:563)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:188)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:316)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:233)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.(AnnotationConfigApplicationContext.java:88)
at io.mosip.registration.controller.ClientApplication.init(ClientApplication.java:84)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(Unknown Source)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalArgumentException: Class [org.springframework.boot.autoconfigure.condition.OnBeanCondition] is not assignable to [org.springframework.boot.autoconfigure.AutoConfigurationImportFilter]
at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:158)
… 19 common frames omitted