SslConfig is null when trying to capture logs using Syslog with TLS
Aperta
I maintainer di solito rispondono entro 1 giorno
@vy ci sta già lavorando.
Dal 16/2/2026.
Valutazione
Questa issue non è ancora stata valutata.
Descrizione
appenders
bug
configuration
layouts
priority: P1
Description
Essentially, I am trying to test the sending of log messages using Syslog over TLS protocol. My tests work completely fine with TCP but break for a number of reasons (since we've upgraded from JDK17 -> 21). The trust store is being set programmatically along with the 'SSL' protocol. However, I encounter issues whereby you get NPE's for it being unable to initialise the SSL Configuration required.
With an SSL block it 'seems' to work, but that hasn't been required before and as per the log4j docs should still not be required as long as the system variables for the trustStore etc are being set before any appenders are created. Would greatly appreciate any assistance on this 🙇 .
Configuration
Version: 2.25.3
Operating system: Windows 11
JDK: JDK21
Logs
2026-01-20T12:20:03.986235Z pool-2-thread-1 @coroutine#3 ERROR Could not create plugin of type class org.apache.logging.log4j.core.appender.SyslogAppender for element Syslog: java.lang.NullPointerException: Cannot invoke "org.apache.logging.log4j.core.net.ssl.SslConfiguration.getKeyStoreConfig()" because "sslConfig" is null
java.lang.NullPointerException: Cannot invoke "org.apache.logging.log4j.core.net.ssl.SslConfiguration.getKeyStoreConfig()" because "sslConfig" is null
at org.apache.logging.log4j.core.net.SslSocketManager.createSslConfigurationId(SslSocketManager.java:252)
at org.apache.logging.log4j.core.net.SslSocketManager.getSocketManager(SslSocketManager.java:227)
at org.apache.logging.log4j.core.appender.SocketAppender.createSocketManager(SocketAppender.java:579)
at org.apache.logging.log4j.core.appender.SyslogAppender$Builder.build(SyslogAppender.java:151)
at org.apache.logging.log4j.core.appender.SyslogAppender$Builder.build(SyslogAppender.java:49)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:124)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1206)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1125)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1117)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:715)
at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:271)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:324)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:697)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:786)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:808)
at org.apache.logging.log4j.core.config.Configurator.reconfigure(Configurator.java:281)
at io.kotest.core.spec.ListenersKt$functionOverrideCallbacks$1.beforeEach(listeners.kt:41)
at io.kotest.engine.test.TestExtensions.beforeTestBeforeAnyBeforeContainer-gIAlu-s(TestExtensions.kt:80)
at io.kotest.engine.test.interceptors.LifecycleInterceptor.intercept(LifecycleInterceptor.kt:47)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.TestCaseExtensionInterceptor$intercept$2.invokeSuspend(TestCaseExtensionInterceptor.kt:24)
at io.kotest.engine.test.interceptors.TestCaseExtensionInterceptor$intercept$2.invoke(TestCaseExtensionInterceptor.kt)
at io.kotest.engine.test.interceptors.TestCaseExtensionInterceptor$intercept$2.invoke(TestCaseExtensionInterceptor.kt)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1$1.invokeSuspend(TestExtensions.kt:143)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1$1.invoke(TestExtensions.kt)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1$1.invoke(TestExtensions.kt)
at io.micronaut.test.extensions.kotest5.MicronautKotest5Extension.intercept(MicronautKotest5Extension.kt:42)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1.invokeSuspend(TestExtensions.kt:140)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1.invoke(TestExtensions.kt)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1.invoke(TestExtensions.kt)
at io.kotest.engine.test.TestExtensions.intercept(TestExtensions.kt:148)
at io.kotest.engine.test.interceptors.TestCaseExtensionInterceptor.intercept(TestCaseExtensionInterceptor.kt:24)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.BeforeSpecListenerInterceptor$intercept$runTest$1$4$1.invokeSuspend(BeforeSpecListenerInterceptor.kt:50)
at io.kotest.engine.test.interceptors.BeforeSpecListenerInterceptor$intercept$runTest$1$4$1.invoke(BeforeSpecListenerInterceptor.kt)
at io.kotest.engine.test.interceptors.BeforeSpecListenerInterceptor$intercept$runTest$1$4$1.invoke(BeforeSpecListenerInterceptor.kt)
at io.kotest.engine.test.interceptors.BeforeSpecListenerInterceptor.intercept(BeforeSpecListenerInterceptor.kt:60)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.TestEnabledCheckInterceptor.intercept(TestEnabledCheckInterceptor.kt:31)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.CoroutineErrorCollectorInterceptor$intercept$3.invokeSuspend(CoroutineErrorCollectorInterceptor.kt:34)
at io.kotest.engine.test.interceptors.CoroutineErrorCollectorInterceptor$intercept$3.invoke(CoroutineErrorCollectorInterceptor.kt)
at io.kotest.engine.test.interceptors.CoroutineErrorCollectorInterceptor$intercept$3.invoke(CoroutineErrorCollectorInterceptor.kt)
at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndspatched(Undispatched.kt:66)
at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:43)
at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:165)
at kotlinx.coroutines.BuildersKt.withContext(Unknown Source)
at io.kotest.engine.test.interceptors.CoroutineErrorCollectorInterceptor.intercept(CoroutineErrorCollectorInterceptor.kt:33)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor$intercept$4.invokeSuspend(coroutineDispatcherFactoryInterceptor.kt:57)
at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor$intercept$4.invoke(coroutineDispatcherFactoryInterceptor.kt)
at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor$intercept$4.invoke(coroutineDispatcherFactoryInterceptor.kt)
at io.kotest.engine.concurrency.FixedThreadCoroutineDispatcherFactory$withDispatcher$4.invokeSuspend(FixedThreadCoroutineDispatcherFactory.kt:59)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:34)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
2026-01-20T12:20:03.995535800Z pool-2-thread-1 @coroutine#3 ERROR Unable to invoke factory method in class org.apache.logging.log4j.core.appender.SyslogAppender for element Syslog: java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.SyslogAppender
java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.SyslogAppender
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:268)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:140)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1206)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1125)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1117)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:715)
at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:271)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:324)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:697)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:786)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:808)
at org.apache.logging.log4j.core.config.Configurator.reconfigure(Configurator.java:281)
at io.kotest.core.spec.ListenersKt$functionOverrideCallbacks$1.beforeEach(listeners.kt:41)
at io.kotest.engine.test.TestExtensions.beforeTestBeforeAnyBeforeContainer-gIAlu-s(TestExtensions.kt:80)
at io.kotest.engine.test.interceptors.LifecycleInterceptor.intercept(LifecycleInterceptor.kt:47)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.TestCaseExtensionInterceptor$intercept$2.invokeSuspend(TestCaseExtensionInterceptor.kt:24)
at io.kotest.engine.test.interceptors.TestCaseExtensionInterceptor$intercept$2.invoke(TestCaseExtensionInterceptor.kt)
at io.kotest.engine.test.interceptors.TestCaseExtensionInterceptor$intercept$2.invoke(TestCaseExtensionInterceptor.kt)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1$1.invokeSuspend(TestExtensions.kt:143)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1$1.invoke(TestExtensions.kt)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1$1.invoke(TestExtensions.kt)
at io.micronaut.test.extensions.kotest5.MicronautKotest5Extension.intercept(MicronautKotest5Extension.kt:42)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1.invokeSuspend(TestExtensions.kt:140)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1.invoke(TestExtensions.kt)
at io.kotest.engine.test.TestExtensions$intercept$execute$1$1.invoke(TestExtensions.kt)
at io.kotest.engine.test.TestExtensions.intercept(TestExtensions.kt:148)
at io.kotest.engine.test.interceptors.TestCaseExtensionInterceptor.intercept(TestCaseExtensionInterceptor.kt:24)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.BeforeSpecListenerInterceptor$intercept$runTest$1$4$1.invokeSuspend(BeforeSpecListenerInterceptor.kt:50)
at io.kotest.engine.test.interceptors.BeforeSpecListenerInterceptor$intercept$runTest$1$4$1.invoke(BeforeSpecListenerInterceptor.kt)
at io.kotest.engine.test.interceptors.BeforeSpecListenerInterceptor$intercept$runTest$1$4$1.invoke(BeforeSpecListenerInterceptor.kt)
at io.kotest.engine.test.interceptors.BeforeSpecListenerInterceptor.intercept(BeforeSpecListenerInterceptor.kt:60)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.TestEnabledCheckInterceptor.intercept(TestEnabledCheckInterceptor.kt:31)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.CoroutineErrorCollectorInterceptor$intercept$3.invokeSuspend(CoroutineErrorCollectorInterceptor.kt:34)
at io.kotest.engine.test.interceptors.CoroutineErrorCollectorInterceptor$intercept$3.invoke(CoroutineErrorCollectorInterceptor.kt)
at io.kotest.engine.test.interceptors.CoroutineErrorCollectorInterceptor$intercept$3.invoke(CoroutineErrorCollectorInterceptor.kt)
at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndspatched(Undispatched.kt:66)
at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:43)
at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:165)
at kotlinx.coroutines.BuildersKt.withContext(Unknown Source)
at io.kotest.engine.test.interceptors.CoroutineErrorCollectorInterceptor.intercept(CoroutineErrorCollectorInterceptor.kt:33)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invokeSuspend(TestCaseExecutor.kt:100)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.TestCaseExecutor$execute$3$1.invoke(TestCaseExecutor.kt)
at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor$intercept$4.invokeSuspend(coroutineDispatcherFactoryInterceptor.kt:57)
at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor$intercept$4.invoke(coroutineDispatcherFactoryInterceptor.kt)
at io.kotest.engine.test.interceptors.CoroutineDispatcherFactoryInterceptor$intercept$4.invoke(coroutineDispatcherFactoryInterceptor.kt)
at io.kotest.engine.concurrency.FixedThreadCoroutineDispatcherFactory$withDispatcher$4.invokeSuspend(FixedThreadCoroutineDispatcherFactory.kt:59)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:34)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
2026-01-20T12:20:04.004096Z pool-2-thread-1 @coroutine#3 ERROR Null object returned for Syslog in Appenders.
2026-01-20T12:20:04.020423300Z pool-2-thread-1 @coroutine#3 ERROR Unable to locate appender "LogToSyslog" for logger config "root"
Reproduction
I've converted my kotlin code into a basic JUnit test that aims to send a log message via TLS through Syslog. Apologies for not providing a comprehensive test in this case but the kotlin file should have enough to be able to run. You might just need to setup a basic GenericContainer companion class that uses the image 'balabit/syslog-ng:4.4.0'.
- Lingua principale
- Java
- Stelle
- 3.6k
- Fork
- 1.8k
- Merge medio
- 5g 6h
- PR unite (30g)
- 24
Preparare l'ambiente
- Nessun Dockerfile né file Docker Compose
- Ha un modello di pull request
- Nessuna guida per i contributori
Come iniziare
- Leggi tutta la issue e poi la guida ai contributi del progetto.
- Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
- Fai un fork del repository e lavora su un branch.
- Apri una pull request che faccia riferimento al numero della issue.
Altre issue di apache/logging-log4j2
-
additivity attributeApertawaiting-for-maintainer
Difficoltà 2/5 1-3 ore Idoneità per principianti 63/100
apache/logging-log4j2#4475 ·
I maintainer di solito rispondono entro 1 giorno
-
Migrate `log4j-api-test` tests to JUnit 5Forse di nuovo libera Una pull request per questa issue è stata chiusa senza essere unita. Apertaapi priority: P3 tests waiting-for-maintainer
Difficoltà 2/5 1-3 ore Idoneità per principianti 68/100
apache/logging-log4j2#4430 · 1 commento ·
I maintainer di solito rispondono entro 1 giorno
-
`Rfc5424Layout` does not escape the `newLineEscape` replacement in SD-PARAM-VALUEForse già presa @lunarbae628 l’ha presa 5 giorni fa. Apertabug layouts priority: P3
apache/logging-log4j2#4464 · 2 commenti · 1 assegnatario ·
I maintainer di solito rispondono entro 1 giorno
-
configuration enhancement layouts
Difficoltà 4/5 3-5 giorni Idoneità per principianti 55/100
apache/logging-log4j2#4463 ·
I maintainer di solito rispondono entro 1 giorno
-
`evaluateOnStartup="true"` saves logs under wrong file names after missing scheduled rollForse di nuovo libera Una pull request per questa issue è stata chiusa senza essere unita. Apertaappenders:Rolling bug priority: P1 waiting-for-maintainer
Difficoltà 3/5 1-2 giorni Idoneità per principianti 30/100
apache/logging-log4j2#4449 ·
I maintainer di solito rispondono entro 1 giorno
Tutte le issue di apache/logging-log4j2
Issue simili
-
untriaged
Difficoltà 2/5 1-3 ore Idoneità per principianti 68/100
opensearch-project/opensearch-prometheus-exporter#680 ·
I maintainer di solito rispondono entro 2 giorni
-
Difficoltà 2/5 1-3 ore Idoneità per principianti 66/100
I maintainer di solito rispondono entro 2 giorni
-
bug
Difficoltà 1/5 Meno di un'ora Idoneità per principianti 78/100
-
Good First Issue
Difficoltà 1/5 1-3 ore Idoneità per principianti 88/100
hiero-ledger/hiero-sdk-java#3059 ·
I maintainer di solito rispondono entro 1 giorno
-
bug live-tv platform:desktop platform:mobile platform:tv
Difficoltà 2/5 1-3 ore Idoneità per principianti 85/100
fk0u/cleanyourtv-tahoe#102 ·
I maintainer di solito rispondono entro 1 giorno