From a48c939fe42039cf03a6e957d3060c7a915565c0 Mon Sep 17 00:00:00 2001
From: Robert Burrell Donkin <rdonkin@apache.org>
Date: Thu, 2 Feb 2006 22:56:55 +0000
Subject: [PATCH] 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        | 7 +++++++
 .../org/apache/commons/logging/impl/LogFactoryImpl.java    | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/src/java/org/apache/commons/logging/LogFactory.java b/src/java/org/apache/commons/logging/LogFactory.java
index 1707369..3d05b21 100644
--- a/src/java/org/apache/commons/logging/LogFactory.java
+++ b/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;
diff --git a/src/java/org/apache/commons/logging/impl/LogFactoryImpl.java b/src/java/org/apache/commons/logging/impl/LogFactoryImpl.java
index 27579e9..4c46f83 100644
--- a/src/java/org/apache/commons/logging/impl/LogFactoryImpl.java
+++ b/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);