From 22d7927e3c8e7dff0ae7e16728c3ef7af9b74fdb Mon Sep 17 00:00:00 2001
From: Artur Signell <artur.signell@itmill.com>
Date: Fri, 5 Nov 2010 15:46:38 +0000
Subject: [PATCH] #5957 - ClassPathExplorer should show
 UnsupportedClassVersionError

svn changeset:15887/svn branch:6.4
---
 .../gwt/widgetsetutils/ClassPathExplorer.java | 27 +++++++++----------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/src/com/vaadin/terminal/gwt/widgetsetutils/ClassPathExplorer.java b/src/com/vaadin/terminal/gwt/widgetsetutils/ClassPathExplorer.java
index 06876e44c5..b215717ee0 100644
--- a/src/com/vaadin/terminal/gwt/widgetsetutils/ClassPathExplorer.java
+++ b/src/com/vaadin/terminal/gwt/widgetsetutils/ClassPathExplorer.java
@@ -526,7 +526,7 @@ public class ClassPathExplorer {
         PrintStream out = System.out;
         PrintStream err = System.err;
         Throwable errorToShow = null;
-
+        Level logLevel = null;
         try {
             System.setErr(devnull);
             System.setOut(devnull);
@@ -543,32 +543,31 @@ public class ClassPathExplorer {
             // Inform the user about this as the class might contain a Paintable
             // Typically happens when using an add-on that is compiled using a
             // newer Java version.
+            logLevel = Level.INFO;
             errorToShow = e;
         } catch (ClassNotFoundException e) {
             // Don't show to avoid flooding the user with irrelevant messages
-            if (logger.isLoggable(Level.FINE)) {
-                errorToShow = e;
-            }
+            logLevel = Level.FINE;
+            errorToShow = e;
         } catch (LinkageError e) {
             // Don't show to avoid flooding the user with irrelevant messages
-            if (logger.isLoggable(Level.FINE)) {
-                errorToShow = e;
-            }
+            logLevel = Level.FINE;
+            errorToShow = e;
         } catch (Exception e) {
             // Don't show to avoid flooding the user with irrelevant messages
-            if (logger.isLoggable(Level.FINE)) {
-                errorToShow = e;
-            }
+            logLevel = Level.FINE;
+            errorToShow = e;
         } finally {
             System.setErr(err);
             System.setOut(out);
         }
 
         // Must be done here after stderr and stdout have been reset.
-        if (errorToShow != null) {
-            logger.warning("Failed to load class " + fullclassName + ". "
-                    + errorToShow.getClass().getName() + ": "
-                    + errorToShow.getMessage());
+        if (errorToShow != null && logLevel != null) {
+            logger.log(logLevel,
+                    "Failed to load class " + fullclassName + ". "
+                            + errorToShow.getClass().getName() + ": "
+                            + errorToShow.getMessage());
         }
     }
 
-- 
2.39.5