critical sonar fix

https://sonar.onap.org/project/issues?id=org.onap.aaf.authz%3Aparent&open=AWK69ZEIwGn37JfbmFIK&resolved=false&severities=CRITICAL&types=VULNERABILITY

Change-Id: I3544147a07b691de33046d7bced785e0bc23ca38
Issue-ID: AAF-457
Signed-off-by: Tomek Kaminski <tomasz.kaminski@nokia.com>
diff --git a/misc/xgen/src/main/java/org/onap/aaf/misc/xgen/XGen.java b/misc/xgen/src/main/java/org/onap/aaf/misc/xgen/XGen.java
index 632e7a8..c651d75 100644
--- a/misc/xgen/src/main/java/org/onap/aaf/misc/xgen/XGen.java
+++ b/misc/xgen/src/main/java/org/onap/aaf/misc/xgen/XGen.java
@@ -30,7 +30,7 @@
 

 public class XGen<RT extends XGen<RT>> {

 

-	public static int COMMENT_COLUMN = 40;

+	private static final int COMMENT_COLUMN = 40;

 	private StringBuilder backSB = new StringBuilder();

 	private Stack<Back> backStack = new Stack<Back>();