Author: rdonkin
Date: Sun Feb 12 08:28:32 2006
New Revision: 377199
URL: http://svn.apache.org/viewcvs?rev=377199&view=rev
Log:
Print classloader details when the class loaded is incompatible. Added comment
suggesting fix.
Modified:
jakarta/commons/proper/logging/trunk/src/java/org/apache/commons/logging/LogFactory.java
Modified:
jakarta/commons/proper/logging/trunk/src/java/org/apache/commons/logging/LogFactory.java
URL:
http://svn.apache.org/viewcvs/jakarta/commons/proper/logging/trunk/src/java/org/apache/commons/logging/LogFactory.java?rev=377199&r1=377198&r2=377199&view=diff
==============================================================================
---
jakarta/commons/proper/logging/trunk/src/java/org/apache/commons/logging/LogFactory.java
(original)
+++
jakarta/commons/proper/logging/trunk/src/java/org/apache/commons/logging/LogFactory.java
Sun Feb 12 08:28:32 2006
@@ -997,11 +997,23 @@
"Loaded class " + logFactoryClass.getName()
+ " from classloader " + objectId(classLoader));
} else {
+ //
+ // This indicates a problem with the ClassLoader tree.
+ // An incompatible ClassLoader was used to load the
+ // implementation.
+ // As the same classes
+ // must be available in multiple class loaders,
+ // it is very likely that multiple JCL jars are
present.
+ // The most likely fix for this
+ // problem is to remove the extra JCL jars from the
+ // ClassLoader hierarchy.
+ //
logDiagnostic(
"Factory class " + logFactoryClass.getName()
+ " loaded from classloader " +
objectId(classLoader)
+ " does not extend '" + LogFactory.class.getName()
+ "' as loaded by this classloader.");
+ logHierarchy("[BAD CL TREE] ", classLoader);
}
return (LogFactory) logFactoryClass.newInstance();
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