make POILogFactory _loggers cache final

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1761660 13f79535-47bb-0310-9956-ffa450edef68
2016-09-21 02:05:58 +00:00 · 2016-09-21 02:05:58 +00:00 · b44d6ec062
commit b44d6ec062
parent 92d0f35c84
1 changed files with 1 additions and 1 deletions
--- a/src/java/org/apache/poi/util/POILogFactory.java
+++ b/src/java/org/apache/poi/util/POILogFactory.java
@ -35,7 +35,7 @@ public final class POILogFactory {
    /**
     * Map of POILogger instances, with classes as keys
     */
-    private static Map<String,POILogger> _loggers = new HashMap<String,POILogger>();
+    private static final Map<String,POILogger> _loggers = new HashMap<String,POILogger>();

    /**
     * A common instance of NullLogger, as it does nothing