make OPCPackage logger final

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1736721 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/src/ooxml/java/org/apache/poi/openxml4j/opc/OPCPackage.java b/src/ooxml/java/org/apache/poi/openxml4j/opc/OPCPackage.java
index 4c1acd0179e912592961617526d770551810d53d..725ab24888064569eb4743b41c273ef5c5dfb8f8 100644 (file)
--- a/src/ooxml/java/org/apache/poi/openxml4j/opc/OPCPackage.java
+++ b/src/ooxml/java/org/apache/poi/openxml4j/opc/OPCPackage.java
@@ -67,7 +67,7 @@ public abstract class OPCPackage implements RelationshipSource, Closeable {
        /**
         * Logger.
         */
-    private static POILogger logger = POILogFactory.getLogger(OPCPackage.class);
+    private static final POILogger logger = POILogFactory.getLogger(OPCPackage.class);
 
        /**
         * Default package access.