[
https://jira.qos.ch/browse/SLF4J-456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ceki Gülcü resolved SLF4J-456.
------------------------------
Resolution: Fixed
Fixed in [commit fb418|https://github.com/qos-ch/slf4j/commit/fb418db538a4990].
> SLF4J 1.8 on JVMs < 9
> ---------------------
>
> Key: SLF4J-456
> URL: https://jira.qos.ch/browse/SLF4J-456
> Project: SLF4J
> Issue Type: Bug
> Components: Core API, jcl-over-slf4j
> Affects Versions: 1.8.0-beta2
> Reporter: Thorsten Heit
> Assignee: Ceki Gülcü
> Fix For: 1.8.0-beta4
>
>
> When I use slf4j-1.8.0-beta2 in an application that is being deployed to our
> Websphere 9 server, I see error messages in the deployment manager console:
> {noformat}
> (...)
> [2/18/19 15:51:31:862 CET] 000022bd WSModuleDescr E WSWS7011E: The
> configuration for the myapp-war-2019.4.0-SNAPSHOT.war application module
> cannot load correctly.
> The following error occurred:
> com.ibm.ws.metadata.annotations.AnnotationException: Annotation processing
> failed for class: module-info.class
> at
> com.ibm.ws.metadata.annotations.AnnotationConfigReader.getAnnotationData(AnnotationConfigReader.java:883)
> at
> com.ibm.ws.metadata.annotations.AnnotationConfigReader.getAnnotationDataForZippedArchive(AnnotationConfigReader.java:766)
> at
> com.ibm.ws.metadata.annotations.AnnotationConfigReader.getAnnotationData(AnnotationConfigReader.java:696)
> at
> com.ibm.ws.metadata.annotations.AnnotationConfigReader.populateModuleData(AnnotationConfigReader.java:353)
> at
> com.ibm.ws.metadata.MetaDataOrchestrator.getModuleData(MetaDataOrchestrator.java:112)
> at
> com.ibm.ws.websvcs.annotations.collector.WASAnnotationCollector.getMDO(WASAnnotationCollector.java:258)
> at
> com.ibm.ws.websvcs.annotations.collector.WASAnnotationCollector.collect(WASAnnotationCollector.java:146)
> at
> com.ibm.ws.websvcs.desc.WSModuleDescriptorImpl.getClassDataObjects(WSModuleDescriptorImpl.java:1458)
> at
> com.ibm.ws.websvcs.desc.WSModuleDescriptorImpl.initDBCMap(WSModuleDescriptorImpl.java:2153)
> at
> com.ibm.ws.websvcs.desc.WSModuleDescriptorImpl.buildJAXWSServiceRefs(WSModuleDescriptorImpl.java:1137)
> at
> com.ibm.ws.websvcs.desc.WSModuleDescriptorImpl._containsWebServiceClients(WSModuleDescriptorImpl.java:639)
> at
> com.ibm.ws.websvcs.desc.WSModuleDescriptorImpl.containsWebServiceClients(WSModuleDescriptorImpl.java:611)
> at
> com.ibm.ws.websvcs.deploy.WSCacheWriter.writeModuleCache(WSCacheWriter.java:583)
> at
> com.ibm.ws.websvcs.deploy.WSCacheWriter.writeApplicationCache(WSCacheWriter.java:242)
> at
> com.ibm.ws.websvcs.deploy.WSCacheWriter.writeApplicationCache(WSCacheWriter.java:167)
> at
> com.ibm.ws.websvcs.deploy.PersistentStorageInstallSaveTask.performTask(PersistentStorageInstallSaveTask.java:196)
> at
> com.ibm.ws.management.application.sync.AppBinaryProcessor$ExpandApp.expand(AppBinaryProcessor.java:1770)
> at
> com.ibm.ws.management.application.sync.AppBinaryProcessor$AppBinThread.run(AppBinaryProcessor.java:1276)
> at java.lang.Thread.run(Thread.java:811)
> Caused by: java.lang.IllegalArgumentException
> at org.objectweb.asm.ClassReader.<init>(Unknown Source)
> at org.objectweb.asm.ClassReader.<init>(Unknown Source)
> at org.objectweb.asm.ClassReader.<init>(Unknown Source)
> at
> com.ibm.ws.metadata.annotations.AnnotationConfigReader.getAnnotationData(AnnotationConfigReader.java:836)
> ... 18 more
> (...){noformat}
> Switching back to the older 1.7.25 version lets this error message disappear.
> The reason is that Websphere (still) uses Java 8 which cannot parse / process
> the {{module-info.class}} that was compiled with Java 9.
> My WAR inside the EAR actually only uses {{slf4j-api-1.8.0-beta2.jar}} and
> {{jcl-over-slf4j-1.8.0-beta2.jar}}, but I assume that all Jars containing
> this file are affected.
> Solution:
> Move the class to {{META-INF/versions/9}} and mark the resulting jar as being
> a multi-release jar. See the example in
> [https://github.com/apache/maven-compiler-plugin/blob/master/src/it/multirelease-patterns/singleproject-runtime/pom.xml]
> for how to do this
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