sonar fix

https://sonar.onap.org/project/issues?id=org.onap.aaf.authz%3Aparent&open=AWKvaFNSwGn37Jfbl1QS&resolved=false&severities=CRITICAL&types=VULNERABILITY

Change-Id: I56f8acc55c4a73e6b3c89327615905979307dde6
Issue-ID: AAF-459
Signed-off-by: Tomek Kaminski <tomasz.kaminski@nokia.com>
diff --git a/cadi/core/src/main/java/org/onap/aaf/cadi/PropAccess.java b/cadi/core/src/main/java/org/onap/aaf/cadi/PropAccess.java
index 5e00156..6a932c4 100644
--- a/cadi/core/src/main/java/org/onap/aaf/cadi/PropAccess.java
+++ b/cadi/core/src/main/java/org/onap/aaf/cadi/PropAccess.java
@@ -40,7 +40,7 @@
 	// Sonar says cannot be static... it's ok.  not too many PropAccesses created.
 	private final SimpleDateFormat iso8601 = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
 
-	public static Level DEFAULT = Level.AUDIT;
+	public static final Level DEFAULT = Level.AUDIT;
 	
 	private Symm symm;
 	private int level;