Pulling all pending Bukkit-JavaDoc changes

A special thanks goes to @aerouk for almost all of the changes found here.

By: Wesley Wolfe <weswolf@aol.com>

paper-api/src/main/java/org/bukkit/metadata/FixedMetadataValue.java

@@ -5,21 +5,26 @@ import org.bukkit.plugin.Plugin;
 import java.util.concurrent.Callable;
 
 /**
- * A FixedMetadataValue is a special case metadata item that contains the same value forever after initialization.
- * Invalidating a FixedMetadataValue has no effect.
+ * A FixedMetadataValue is a special case metadata item that contains the same
+ * value forever after initialization. Invalidating a FixedMetadataValue has
+ * no effect.
  * <p>
- * This class extends LazyMetadataValue for historical reasons, even though it overrides all the implementation
- * methods. it is possible that in the future that the inheritance hierarchy may change.
+ * This class extends LazyMetadataValue for historical reasons, even though it
+ * overrides all the implementation methods. it is possible that in the future
+ * that the inheritance hierarchy may change.
  */
 public class FixedMetadataValue extends LazyMetadataValue {
-    /** Store the internal value that is represented by this fixed value. */
+
+    /**
+     * Store the internal value that is represented by this fixed value.
+     */
     private final Object internalValue;
 
     /**
      * Initializes a FixedMetadataValue with an Object
      *
-     * @param owningPlugin the {@link Plugin} that created this metadata value.
-     * @param value the value assigned to this metadata value.
+     * @param owningPlugin the {@link Plugin} that created this metadata value
+     * @param value the value assigned to this metadata value
      */
     public FixedMetadataValue(Plugin owningPlugin, final Object value) {
         super(owningPlugin);