fix bug junit-team#235

modules/slf4j/log4j-over-slf4j/src/main/java/org/apache/log4j/Category.java

@@ -16,11 +16,14 @@
 
 package org.apache.log4j;
 
+import org.apache.log4j.helpers.NullEnumeration;
 import org.slf4j.LoggerFactory;
 import org.slf4j.Marker;
 import org.slf4j.MarkerFactory;
 import org.slf4j.spi.LocationAwareLogger;
 
+import java.util.Enumeration;
+
 /**
  * <p>
  * This class is a minimal implementation of the original
@@ -64,6 +67,7 @@ public static Category getInstance(String name) {
     return Log4jLoggerFactory.getLogger(name);
   }
 
+
   /**
    * Returns the obvious.
    *
@@ -73,6 +77,10 @@ public String getName() {
     return name;
   }
 
+  public Enumeration getAllAppenders() {
+    return NullEnumeration.getInstance();
+  }
+
   /**
    * Return the level in effect for this category/logger.
    *

modules/slf4j/log4j-over-slf4j/src/main/java/org/apache/log4j/helpers/NullEnumeration.java

@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.log4j.helpers;
+
+import java.util.Enumeration;
+import java.util.NoSuchElementException;
+
+/**
+ * An always-empty Enumerator.
+ *
+ * @author Anders Kristensen
+ * @since version 1.0
+ */
+public class NullEnumeration implements Enumeration {
+  private static final NullEnumeration instance = new NullEnumeration();
+
+  private NullEnumeration() {
+  }
+
+  public static NullEnumeration getInstance() {
+    return instance;
+  }
+
+  public boolean hasMoreElements() {
+    return false;
+  }
+
+  public Object nextElement() {
+    throw new NoSuchElementException();
+  }
+}

modules/slf4j/slf4j-site/src/site/pages/news.html

@@ -38,6 +38,13 @@ <h3>???, 2011 - Release of SLF4J 1.6.3</h3>
    reported by Ralph Goers.
    </p>
 
+   <p>In the log4j-over-slf4j module, added missing
+   <code>getAllAppenders</code>() method in <code>Category</code>
+   class. This fixes <a
+   href="http://bugzilla.slf4j.org/show_bug.cgi?id=235">bug #235</a>
+   reported by Anthony Whitford.
+   </p>
+
    <h3>August 19th, 2011 - Release of SLF4J 1.6.2</h3>
 
    <p>Fixed <a