Improved diagnostics

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/logging/trunk@374538 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/commons/logging/LogFactory.java

@@ -1341,6 +1341,13 @@ public abstract class LogFactory {
             return;
         }
         
+        try {
+            logDiagnostic("Extension directories: " + System.getProperty("java.ext.dir"));
+            logDiagnostic("Application classpath: " + System.getProperty("java.class.path"));
+        } catch(SecurityException ex) {
+            logDiagnostic("Security setting prevent interrogation of system classpaths.");
+        }
+        
         String className = clazz.getName();
         ClassLoader classLoader;
         ClassLoader systemClassLoader;

src/java/org/apache/commons/logging/impl/LogFactoryImpl.java

@@ -840,6 +840,13 @@ public class LogFactoryImpl extends LogFactory {
         ClassLoader currentCL = getBaseClassLoader();
         
         for(;;) {
+            // Loop through the classloader hierarchy trying to find
+            // a viable classloader.
+            logDiagnostic(
+                    "Trying to load "
+                    + logAdapterClassName
+                    + " from classloader "
+                    + objectId(currentCL));
             try {
                 Class c = Class.forName(logAdapterClassName, true, currentCL);
                 constructor = c.getConstructor(logConstructorSignature);