### Eclipse Workspace Patch 1.0
#P log4j2
Index: core/src/main/java/org/apache/logging/log4j/core/config/LoggerConfig.java
===================================================================
--- core/src/main/java/org/apache/logging/log4j/core/config/LoggerConfig.java	(revision 1439358)
+++ core/src/main/java/org/apache/logging/log4j/core/config/LoggerConfig.java	(working copy)
@@ -28,6 +28,7 @@
 import org.apache.logging.log4j.core.impl.Log4jLogEvent;
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.impl.LogEventFactory;
+import org.apache.logging.log4j.core.lookup.StrSubstitutor;
 import org.apache.logging.log4j.core.config.plugins.Plugin;
 import org.apache.logging.log4j.core.config.plugins.PluginAttr;
 import org.apache.logging.log4j.core.config.plugins.PluginFactory;
@@ -38,6 +39,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
@@ -255,6 +257,25 @@
     public void setAdditive(final boolean additive) {
         this.additive = additive;
     }
+    
+    /**
+     * Returns an unmodifiable map with the configuration properties, or 
+     * {@code null} if this {@code LoggerConfig} does not have any configuration
+     * properties.
+     * <p>
+     * For each {@code Property} key in the map, the value is {@code true} if
+     * the property value has a variable that needs to be substituted.
+     * 
+     * @return an unmodifiable map with the configuration properties, or 
+     *         {@code null}
+     * @see Configuration#getSubst()
+     * @see StrSubstitutor
+     */
+    // LOG4J2-157
+    public Map<Property, Boolean> getProperties() {
+        return properties == null ? null : 
+            Collections.unmodifiableMap(properties);
+    }
 
     /**
      * Logs an event.