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Error clearing SLF4J cache #8515
Description
Brief Summary
When Payara 7 starts, the following error message appears:
[2026-10-16T08:34:01.058+0200] [Payara 7.2026.10] [WARNUNG] [] [javax.enterprise.system.util] [tid: _ThreadID=180 _ThreadName=admin-thread-pool::admin-listener(2)] [timeMillis: 1792132441058] [levelValue: 900] [[
Error clearing SLF4J cache
java.lang.NullPointerException: Cannot invoke "java.lang.reflect.Field.set(Object, Object)" because the return value of "com.sun.enterprise.loader.CachingReflectionUtil.getField(java.lang.Class, String, boolean)" is null
at com.sun.enterprise.loader.CacheCleaner.clearSLF4jCache(CacheCleaner.java:111)
at com.sun.enterprise.loader.CacheCleaner.clearCaches(CacheCleaner.java:53)
at org.glassfish.web.loader.WebappClassLoader.stop(WebappClassLoader.java:2044)
at org.glassfish.web.loader.WebappClassLoader.preDestroy(WebappClassLoader.java:2007)
at org.glassfish.deployment.common.DeploymentContextImpl.getClassLoader(DeploymentContextImpl.java:292)
at org.glassfish.deployment.common.DeploymentContextImpl.getClassLoader(DeploymentContextImpl.java:234)
at com.sun.enterprise.v3.server.ApplicationLifecycle.prepare(ApplicationLifecycle.java:558)
at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:569)
Expected Outcome
When Payara 7 starts, the following error message appears:
[2026-10-16T08:34:01.058+0200] [Payara 7.2026.10] [WARNUNG] [] [javax.enterprise.system.util] [tid: _ThreadID=180 _ThreadName=admin-thread-pool::admin-listener(2)] [timeMillis: 1792132441058] [levelValue: 900] [[
Error clearing SLF4J cache
java.lang.NullPointerException: Cannot invoke "java.lang.reflect.Field.set(Object, Object)" because the return value of "com.sun.enterprise.loader.CachingReflectionUtil.getField(java.lang.Class, String, boolean)" is null
at com.sun.enterprise.loader.CacheCleaner.clearSLF4jCache(CacheCleaner.java:111)
at com.sun.enterprise.loader.CacheCleaner.clearCaches(CacheCleaner.java:53)
at org.glassfish.web.loader.WebappClassLoader.stop(WebappClassLoader.java:2044)
at org.glassfish.web.loader.WebappClassLoader.preDestroy(WebappClassLoader.java:2007)
at org.glassfish.deployment.common.DeploymentContextImpl.getClassLoader(DeploymentContextImpl.java:292)
at org.glassfish.deployment.common.DeploymentContextImpl.getClassLoader(DeploymentContextImpl.java:234)
at com.sun.enterprise.v3.server.ApplicationLifecycle.prepare(ApplicationLifecycle.java:558)
at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:569)
Current Outcome
This error message appears when I start Payara. My project itself does not use this old SLF4J library.
Reproducer
every time Payara 7 starts up
Operating System
Windows 11
JDK Version
Temerium 21.0.12
Payara Distribution
Payara Server Full Profile
Activity
StevenHachel commentedon Oct 16, 2026
Sorry, my mistake. The old SLF4j API was included in one of the dependencies.