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diff --git a/srcjar_unused/org/apache/log4j/spi/NOPLoggerRepository.java b/srcjar_unused/org/apache/log4j/spi/NOPLoggerRepository.java
new file mode 100644
index 0000000..bdb6ed9
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+++ b/srcjar_unused/org/apache/log4j/spi/NOPLoggerRepository.java
@@ -0,0 +1,131 @@
+/*
+ * 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.spi;
+
+import org.apache.log4j.Level;
+import org.apache.log4j.Category;
+import org.apache.log4j.Logger;
+import org.apache.log4j.Appender;
+
+import java.util.Enumeration;
+import java.util.Vector;
+
+/**
+ *  No-operation implementation of LoggerRepository which is used when
+ *  LogManager.repositorySelector is erroneously nulled during class reloading.
+ *  @since 1.2.15
+ */
+public final class NOPLoggerRepository implements LoggerRepository {
+    /**
+     * {@inheritDoc}
+    */
+    public void addHierarchyEventListener(final HierarchyEventListener listener) {
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public boolean isDisabled(final int level) {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void setThreshold(final Level level) {
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void setThreshold(final String val) {
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void emitNoAppenderWarning(final Category cat) {
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Level getThreshold() {
+        return Level.OFF;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Logger getLogger(final String name) {
+        return new NOPLogger(this, name);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Logger getLogger(final String name, final LoggerFactory factory) {
+        return new NOPLogger(this, name);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Logger getRootLogger() {
+        return new NOPLogger(this, "root");
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Logger exists(final String name) {
+        return null;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void shutdown() {
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Enumeration getCurrentLoggers() {
+        return new Vector().elements();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Enumeration getCurrentCategories() {
+        return getCurrentLoggers();
+    }
+
+
+    /**
+     * {@inheritDoc}
+     */
+    public  void fireAddAppenderEvent(Category logger, Appender appender) {
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void resetConfiguration() {
+    }
+}