[slf4j-dev] [JIRA] Updates for SLF4J-534: Improve error handling for situations where paths is null in findPossibleStaticLoggerBinderPathSet()

[QOS.CH (JIRA)]

SLF4J / SLF4J-534 [Open]
Improve error handling for situations where paths is null in findPossibleStaticLoggerBinderPathSet()

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https://jira.qos.ch/browse/SLF4J-534

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 Issue created
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Oliver Lietz created this issue on 12/Jan/22 9:37 AM
Summary:              Improve error handling for situations where paths is null in findPossibleStaticLoggerBinderPathSet()
Issue Type:           Improvement
Affects Versions:     1.7.32
Assignee:             SLF4J developers list
Components:           Core API
Created:              12/Jan/22 9:37 AM
Environment:
  NPE in JPMS/OSGi application:
  
  {noformat}
  Failed to instantiate SLF4J LoggerFactory
  Reported exception:
  java.lang.NullPointerException: Cannot invoke "java.util.Enumeration.hasMoreElements()" because "paths" is null
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.findPossibleStaticLoggerBinderPathSet(LoggerFactory.java:310)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.bind(LoggerFactory.java:146)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:417)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:362)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.ops4j.pax.logging.internal.Activator.start(Activator.java:112)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:849)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.Felix.activateBundle(Felix.java:2429)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.Felix.startBundle(Felix.java:2335)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1566)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
  	at java.base/java.lang.Thread.run(Thread.java:833)
  ERROR: Bundle org.ops4j.pax.logging.pax-logging-api [33] Error starting atomos:application:file:///[...]/de.bildschirmarbeiter.aem.toolbox.package/target/jlink/mp/pax-logging-api-2.0.15-SNAPSHOT.jar (org.osgi.framework.BundleException: Activator start error in bundle org.ops4j.pax.logging.pax-logging-api [33].)
  java.lang.IllegalStateException: Unexpected initialization failure
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.bind(LoggerFactory.java:175)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:417)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:362)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.ops4j.pax.logging.internal.Activator.start(Activator.java:112)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:849)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.Felix.activateBundle(Felix.java:2429)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.Felix.startBundle(Felix.java:2335)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1566)
  	at org.apache.felix.framework at 7.0.3/org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
  	at java.base/java.lang.Thread.run(Thread.java:833)
  Caused by: java.lang.NullPointerException: Cannot invoke "java.util.Enumeration.hasMoreElements()" because "paths" is null
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.findPossibleStaticLoggerBinderPathSet(LoggerFactory.java:310)
  	at ModuleConnectLoader-org.ops4j.pax.logging.pax-logging-api/org.ops4j.pax.logging.pax-logging-api at 2.0.15.SNAPSHOT/org.slf4j.LoggerFactory.bind(LoggerFactory.java:146)
  	... 10 more
  {noformat}
  
  Error should be more descriptive.
Priority:             Minor
Reporter:             Oliver Lietz
Severity:             enhancement


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