Style fixes

Change-Id: I04161a813d1d25e632e5918ca1686157287125d7
Reviewed-on: http://gerrit.dmdirc.com/1330
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Reviewed-by: Gregory Holmes <greg@dmdirc.com>

src/com/dmdirc/util/ConfigFile.java

     /**
      * Reads the data from the file.
      * 
-     * @throws FileNotFoundException if the file is not found
-     * @throws IOException if an i/o exception occured when reading
+     * @throws IOException if an i/o exception occurred when reading
      * @throws InvalidConfigFileException if the config file isn't valid
      */
-    public void read() throws FileNotFoundException, IOException, InvalidConfigFileException {
+    public void read() throws IOException, InvalidConfigFileException {
         String domain = null;
         boolean keydomain = false;
         int offset;

src/com/dmdirc/util/EquatableWeakReference.java

     /** {@inheritDoc} */
     @Override
     public boolean equals(Object obj) {
-        if (obj instanceof Reference) {
-            return get().equals(((Reference) obj).get());
+        if (obj instanceof Reference<?>) {
+            return get().equals(((Reference<?>) obj).get());
         } else {
             return get().equals(obj);
         }

src/com/dmdirc/util/ListenerList.java

     /** The map of class->listener or string->listener that we're using. */
     private final Map<Object, Collection<Object>> listeners
             = new HashMap<Object, Collection<Object>>();
-    
-    /**
-     * Creates a new instance of ListenerList.
-     */
-    public ListenerList() {
-        // Do nothing
-    }
-    
+       
     /**
      * Adds a new listener of the specified type to this listener list.
      * 

src/com/dmdirc/util/StreamUtil.java

  * @since 0.6.3m2
  * @author chris
  */
-public abstract class StreamUtil {
+public final class StreamUtil {
+    
+    /** Shouldn't be called. */
+    private StreamUtil() {
+        super();
+    }
 
     /**
      * Closes the stream if it is non-null, and ignores any IOExceptions

src/com/dmdirc/util/WeakList.java

     /** The items in this list. */
     private final List<WeakReference<T>> list = new ArrayList<WeakReference<T>>();
 
-    /**
-     * Creates a new instance of WeakList.
-     */
-    public WeakList() {
-        super();
-    }
-
     /**
      * Removes any entries from the list that have been GC'd.
      */

test/com/dmdirc/util/TextFileTest.java

 package com.dmdirc.util;
 
 import java.io.File;
-import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.net.URISyntaxException;
 import java.util.Arrays;
 import java.util.List;