Small alterations

src/mohawk/converter/ConverterInstance.java

@@ -23,7 +23,6 @@ import org.apache.commons.cli.CommandLineParser;
 import org.apache.commons.cli.HelpFormatter;
 import org.apache.commons.cli.OptionBuilder;
 import org.apache.commons.cli.Options;
-import org.apache.commons.cli.ParseException;
 import org.apache.commons.lang3.StringUtils;
 
 public class ConverterInstance {
@@ -152,17 +151,7 @@ public class ConverterInstance {
 
             logger.info(timing.toString());
 
-        } catch (ParseException e) {
-            if (logger.getLevel() == Level.FINEST) {
-                e.printStackTrace();
-            }
-            logger.severe(e.getMessage());
-        } catch (SecurityException e) {
-            if (logger.getLevel() == Level.FINEST) {
-                e.printStackTrace();
-            }
-            logger.severe(e.getMessage());
-        } catch (IOException e) {
+        } catch (Exception e) {
             if (logger.getLevel() == Level.FINEST) {
                 e.printStackTrace();
             }

src/mohawk/converter/helper/RoleTimeSlotHelper.java

+package mohawk.converter.helper;
+
+public class RoleTimeSlotHelper {
+
+}

src/mohawk/global/FileExtensions.java

+package mohawk.global;
+
+import java.io.File;
+import java.io.FilenameFilter;
+
+public class FileExtensions {
+    public String Mohawk = ".mohawk";
+    public String Mohawk_T = ".mohawk.T";
+    public String ASAPTime_SA = ".asaptime.sa";
+    public String ASAPTime_NSA = ".asaptime.nsa";
+    public String TRole = ".trole";
+    public String TRule = ".trule";
+
+    public String[] getFileExtensions() {
+        return new String[] { Mohawk, Mohawk_T, ASAPTime_SA, ASAPTime_NSA, TRole, TRule };
+    }
+
+    public static FilenameFilter getFilter(String ext) {
+        return new FilenameFilter() {
+            public boolean accept(File dir, String name) {
+                return name.toLowerCase().endsWith(ext);
+            }
+        };
+    }
+
+    public static File[] getFiles(String directory, FilenameFilter filter) {
+        File dir = new File(directory);
+        if (!dir.isDirectory()) { return null; }
+
+        File[] files = dir.listFiles(filter);
+
+        return files;
+    }
+}