Generic cleanup of warnings, whitespace and style.

By: Erik Broes <erikbroes@grum.nl>

paper-api/src/main/java/org/bukkit/material/Rails.java

@@ -97,6 +97,7 @@ public class Rails extends MaterialData {
 
     /**
      * Return the data without the extended properties used by {@link PoweredRail} and {@link DetectorRail}. Overridden in {@link ExtendedRails}
+     *
      * @return the data without the extended part
      */
     protected byte getConvertedData() {
@@ -105,10 +106,11 @@ public class Rails extends MaterialData {
 
     /**
      * Set the direction of these tracks<br>
-     *         Note that tracks are bidirectional and that the direction
-     *         returned is the ascending direction if the track is set on a
-     *         slope. If it is set as a curve, the corner of the track should
-     *         be supplied.
+     * Note that tracks are bidirectional and that the direction
+     * returned is the ascending direction if the track is set on a
+     * slope. If it is set as a curve, the corner of the track should
+     * be supplied.
+     *
      * @param face the direction the track should be facing
      * @param isOnSlope whether or not the track should be on a slope
      */