Fixed swing models missing generics.

src/main/java/musicplayer/LibraryConfigGUI.java

@@ -8,8 +8,8 @@ import java.io.File;
 import java.util.List;
 
 class LibraryConfigGUI {
-    private JList listLibraryFolders;
-    private final LibraryListModel listModel = new LibraryListModel();
+    private JList<File> listLibraryFolders;
+    private final LibraryListModel<File> listModel = new LibraryListModel<>();
     private JPanel mainPanel;
 
     public LibraryConfigGUI(){
@@ -25,7 +25,7 @@ class LibraryConfigGUI {
     private JPanel createUI() {
         mainPanel = new JPanel();
         mainPanel.setLayout(new BorderLayout(0, 0));
-        listLibraryFolders = new JList();
+        listLibraryFolders = new JList<>();
         listLibraryFolders.setModel(listModel);
         mainPanel.add(listLibraryFolders, BorderLayout.CENTER);
         final JPanel panel2 = new JPanel();

src/main/java/musicplayer/PlayerGUI.java

@@ -43,7 +43,7 @@ public class PlayerGUI implements PlayerCallbackInterface, LibraryCallbackInterf
     private final JTree libraryView = new JTree();
     private final JTable playList = new JTable();
     private JSlider seekBar;
-    private final JComboBox libraryDisplayType = new JComboBox();
+    private final JComboBox<String> libraryDisplayType = new JComboBox<>();
     private final Player player = new Player(this);
     private final PlaylistTableModel playlistTableModel = new PlaylistTableModel(new ArrayList<>());
     private static final DefaultMutableTreeNode updatingNode = new DefaultMutableTreeNode();

src/main/java/musicplayer/swingmodels/LibraryListModel.java

@@ -5,9 +5,9 @@ import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 
-public class LibraryListModel extends AbstractListModel {
+public class LibraryListModel<T extends File> extends AbstractListModel<T> {
 
-    private List<File> libraryFolders = new ArrayList<>();
+    private List<T> libraryFolders = new ArrayList<>();
 
     @Override
     public int getSize() {
@@ -15,7 +15,7 @@ public class LibraryListModel extends AbstractListModel {
     }
 
     @Override
-    public Object getElementAt(int index) {
+    public T getElementAt(int index) {
         return libraryFolders.get(index);
     }
 
@@ -23,7 +23,7 @@ public class LibraryListModel extends AbstractListModel {
      * Add a directory to the list of directories used for library indexing.
      * @param folder Directory to add.
      */
-    public void addFolder(File folder){
+    public void addFolder(T folder){
         if(folder.exists() && folder.isDirectory()) {
             libraryFolders.add(folder);
             fireAllContentsChanged();
@@ -33,7 +33,7 @@ public class LibraryListModel extends AbstractListModel {
     /**
      * @return List of directories currently used for library indexing.
      */
-    public List<File> currentFolderList(){
+    public List<T> currentFolderList(){
         return new ArrayList<>(libraryFolders); // Copy? Don't want modification via here.
     }
 
@@ -42,7 +42,7 @@ public class LibraryListModel extends AbstractListModel {
      * @param file File to find.
      * @return Does file exist in libraryFolders.
      */
-    public boolean contains(File file){
+    public boolean contains(T file){
         return libraryFolders.contains(file);
     }
 
@@ -50,7 +50,7 @@ public class LibraryListModel extends AbstractListModel {
      * Set the list contained in libraryFolders.
      * @param folderList New directory list.
      */
-    public void setFolderList(List<File> folderList){
+    public void setFolderList(List<T> folderList){
         if(folderList != null && folderList.size() > 0)
             libraryFolders = new ArrayList<>(folderList);
         else
@@ -62,7 +62,7 @@ public class LibraryListModel extends AbstractListModel {
      * Remove a directory from libraryFolders.
      * @param file Directory to be removed.
      */
-    public void removeFile(File file){
+    public void removeFile(T file){
         libraryFolders.remove(file);
         fireAllContentsChanged();
     }