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https://issues.apache.org/jira/browse/LOGGING-102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dennis Lundberg updated LOGGING-102:
------------------------------------
Fix Version/s: 1.1.0
> [logging] Provide better error message than "No suitable Log implementation"
> ----------------------------------------------------------------------------
>
> Key: LOGGING-102
> URL: https://issues.apache.org/jira/browse/LOGGING-102
> Project: Commons Logging
> Issue Type: Improvement
> Environment: Operating System: other
> Platform: Other
> Reporter: Ralf Hauser
> Priority: Minor
> Fix For: 1.1.0
>
>
> when trying to do a totally different ant task, I got with debug the following
> exception
> ...\build.xml:3125: java.lang.ExceptionInInitial
> izerError
> at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:114)
> at org.apache.tools.ant.Task.perform(Task.java:365)
> at org.apache.tools.ant.Target.execute(Target.java:356)
> at org.apache.tools.ant.Target.performTasks(Target.java:384)
> at
> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1236)
> at org.apache.tools.ant.Project.executeTarget(Project.java:1205)
> at
> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
> at org.apache.tools.ant.Project.executeTargets(Project.java:1088)
> at org.apache.tools.ant.Main.runBuild(Main.java:676)
> at org.apache.tools.ant.Main.startAnt(Main.java:195)
> at org.apache.tools.ant.launch.Launcher.run(Launcher.java:265)
> at org.apache.tools.ant.launch.Launcher.main(Launcher.java:87)
> Caused by: java.lang.ExceptionInInitializerError
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:242)
> at
> org.apache.tools.ant.taskdefs.Definer.addDefinition(Definer.java:551)
> at org.apache.tools.ant.taskdefs.Definer.execute(Definer.java:221)
> at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
> at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:104)
> ... 11 more
> Caused by: org.apache.commons.logging.LogConfigurationException: No suitable
> Log
> implementation
> at
> org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:748)
> at
> org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:556)
> at
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:307)
> at
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:281)
> at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:560)
> at org.apache.jasper.JspC.<clinit>(JspC.java:90)
> ... 20 more
> --- Nested Exception ---
> java.lang.ExceptionInInitializerError
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:242)
> at
> org.apache.tools.ant.taskdefs.Definer.addDefinition(Definer.java:551)
> at org.apache.tools.ant.taskdefs.Definer.execute(Definer.java:221)
> at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
> at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:104)
> at org.apache.tools.ant.Task.perform(Task.java:365)
> at org.apache.tools.ant.Target.execute(Target.java:356)
> at org.apache.tools.ant.Target.performTasks(Target.java:384)
> at
> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1236)
> at org.apache.tools.ant.Project.executeTarget(Project.java:1205)
> at
> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
> at org.apache.tools.ant.Project.executeTargets(Project.java:1088)
> at org.apache.tools.ant.Main.runBuild(Main.java:676)
> at org.apache.tools.ant.Main.startAnt(Main.java:195)
> at org.apache.tools.ant.launch.Launcher.run(Launcher.java:265)
> at org.apache.tools.ant.launch.Launcher.main(Launcher.java:87)
> Caused by: org.apache.commons.logging.LogConfigurationException: No suitable
> Log
> implementation
> at
> org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:748)
> at
> org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:556)
> at
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:307)
> at
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:281)
> at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:560)
> at org.apache.jasper.JspC.<clinit>(JspC.java:90)
> ... 20 more
> Total time: 13 secondsClass org.apache.commons.logging.impl.LogFactoryImpl
> loaded from ant loader (parentFirst)
> Class java.lang.ExceptionInInitializerError loaded from parent loader
> (parentFirst)
> looking at the CVS head, there might be some relief:
> "User-specified log class " + specifiedLogClassName
> + " cannot be found or is not useable."
> but still, it would be really helpful to know what was missing from an admin
> point of view, so on top of the particular class name, it would be very
> useful,
> to get a hint at
> 1) which jar (log4j.jar) that "specifiedLogClassName" most likely is included
> in?
> 2) Or whether the config file was missing (log4j.properties?) and in
> 3) which directories/jar files it was searched for...
> 4) and what "logCategory" was being aimed for...
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