Remove unnecessary checks for NonNull variables.

src/main/java/us/teaminceptus/vortexsidebars/Sidebar.java

@@ -39,7 +39,6 @@ public List<Text> getLines() {
      * @param newLine the line to add
      */
     public void addLine(@NotNull Text newLine) {
-        if (newLine == null) throw new IllegalArgumentException("newLine cannot be null");
         addLine(newLine, lines.size());
     }
 
@@ -49,8 +48,6 @@ public void addLine(@NotNull Text newLine) {
      * @param index the index (red score on the right)
      */
     public void addLine(@NotNull Text newLine, int index) {
-        if (newLine == null) throw new IllegalArgumentException("newLine cannot be null");
-
         if (lines.contains(newLine)) {
             return;
         }
@@ -105,7 +102,6 @@ public void clearLines() {
      * @param newTitle what to change the title to (Text)
      */
     public void setTitle(@NotNull Text newTitle) {
-        if (newTitle == null) throw new IllegalArgumentException("newTitle cannot be null");
         title = newTitle;
      }
 
@@ -160,9 +156,6 @@ public Sidebar(@NotNull Plugin plugin, @NotNull Text title) {
      * @param lines the lines to display on the sidebar, cannot have duplicates
      */
     public Sidebar(@NotNull Plugin plugin, @NotNull Text title, @Nullable List<Text> lines) {
-        if (plugin == null) throw new IllegalArgumentException("plugin cannot be null");
-        if (title == null) throw new IllegalArgumentException("title cannot be null");
-
         this.title = title;
 
         assert Bukkit.getScoreboardManager() != null;

src/main/java/us/teaminceptus/vortexsidebars/text/AnimatedText.java

@@ -26,9 +26,7 @@ public List<String> getTexts() {
      * Sets the list of Strings to cycle through when displaying
      * @param newTexts the list of Strings to cycle through when displaying
      */
-    public void setTexts(@Nullable List<String> newTexts) {
-        texts = new ArrayList<>(newTexts);
-    }
+    public void setTexts(@Nullable List<String> newTexts) { texts = new ArrayList<>(newTexts); }
 
     private int delay;
 
@@ -79,8 +77,6 @@ public void setIndex(int newIndex) {
      */
     public AnimatedText(@NotNull Plugin plugin, @NotNull List<String> texts, int delay) {
         super(texts.get(0));
-
-        if (plugin == null || texts == null) throw new IllegalArgumentException("plugin and texts cannot be null");
 
         this.texts = texts;
         this.delay = delay;
@@ -105,8 +101,6 @@ public AnimatedText(@NotNull Plugin plugin, @NotNull List<String> texts, int del
         this.texts = texts;
         this.delay = delay;
 
-        if (plugin == null || texts == null) throw new IllegalArgumentException("plugin and texts cannot be null");
-
         new BukkitRunnable() {
             @Override
             public void run() {

src/main/java/us/teaminceptus/vortexsidebars/text/Field.java

@@ -29,7 +29,6 @@ public Object getValue() {
      * @param function the function to call when the output is requested
      */
     public Field(@NotNull Callable<Object> function) {
-        if (function == null) throw new IllegalArgumentException("function cannot be null");
         this.function = function;
     }
 }

src/main/java/us/teaminceptus/vortexsidebars/text/FieldText.java

@@ -19,7 +19,6 @@ public Text getPrefix() {
      * @param newPrefix the Text to put before the Field (e.g. "Players: ") when displaying
      */
     public void setPrefix(@NotNull Text newPrefix) {
-        if (newPrefix == null) throw new IllegalArgumentException("newPrefix cannot be null");
         prefix = newPrefix;
     }
 
@@ -33,7 +32,6 @@ public void setPrefix(@NotNull Text newPrefix) {
      * @param newSuffix the Text to put after the Field (e.g. "/100") when displaying
      */
     public void setSuffix(@NotNull Text newSuffix) {
-        if (newSuffix == null) throw new IllegalArgumentException("newSuffix cannot be null");
         suffix = newSuffix;
     }