Index: trunk/org.etsi.common/src/org/etsi/common/MiscTools.java
===================================================================
--- trunk/org.etsi.common/src/org/etsi/common/MiscTools.java	(revision 43)
+++ trunk/org.etsi.common/src/org/etsi/common/MiscTools.java	(revision 44)
@@ -173,11 +173,14 @@
 
 	//TODO: cloned from NamingConventionsChecker => needs to be unified and reused
+	//note: if regExp is not set it defaults to false quietly
 	public static boolean regExpMatch(String regExp, String subject) {
 		boolean matches = false;
-		Pattern pattern = Pattern.compile(regExp);
-		Matcher matcher = pattern.matcher(subject);
-//		System.out.println(regExp + " : " + subject);
-		if (matcher.matches()) {
-			matches = true;
+		if (regExp!=null){
+			Pattern pattern = Pattern.compile(regExp);
+			Matcher matcher = pattern.matcher(subject);
+	//		System.out.println(regExp + " : " + subject);
+			if (matcher.matches()) {
+				matches = true;
+			}
 		}
 		return matches;