Index: trunk/java-utils/src/main/java/de/ugoe/cs/util/console/CommandExecuter.java
===================================================================
--- trunk/java-utils/src/main/java/de/ugoe/cs/util/console/CommandExecuter.java	(revision 1899)
+++ trunk/java-utils/src/main/java/de/ugoe/cs/util/console/CommandExecuter.java	(revision 2233)
@@ -269,9 +269,12 @@
 
                         if (packageDir.isDirectory()) {
-                            for (File classFile : packageDir.listFiles(filter)) {
-                                String className = classFile.getName().substring
-                                    (0, classFile.getName().lastIndexOf('.'));
-                                classNames.add(packageName + "." + className);
-                            }
+                        	File[] classFiles = packageDir.listFiles(filter);
+                        	if (classFiles != null) {
+                        		for (File classFile : classFiles) {
+                        			String className = classFile.getName().substring
+                        					(0, classFile.getName().lastIndexOf('.'));
+                        			classNames.add(packageName + "." + className);
+                        		}
+                        	}
                         }
                         else {