Add and apply .editorconfig from P2 (#1195)

* Consistenty use javax annotations.
 - Unfortunately jetbrains annotations seem to be exposed transitively via core somewhere, but with the correct IDE settings, annotations can be defaulted to javax
 - Cleaning up of import order in #1195
 - Must be merged before #1195

* Add and apply .editorconfig from P2
 - Does not rearrange entries

* Address some comments

* add back some javadoc comments

* Address final comments

Co-authored-by: NotMyFault <mc.cache@web.de>

worldedit-core/src/main/java/com/sk89q/worldedit/session/ClipboardHolder.java

@@ -55,8 +55,8 @@ public class ClipboardHolder {
      * not contain its effect.
      * </p>
      *
-     * @deprecated FAWE supports multiple loaded schematics {@link #getClipboards()}
      * @return the clipboard
+     * @deprecated FAWE supports multiple loaded schematics {@link #getClipboards()}
      */
     @Deprecated
     public Clipboard getClipboard() {
@@ -64,8 +64,10 @@ public class ClipboardHolder {
     }
 
     //FAWE start
+
     /**
      * Gets all currently held clipboards.
+     *
      * @return all clipboards being held.
      */
     public List<Clipboard> getClipboards() {
@@ -78,8 +80,9 @@ public class ClipboardHolder {
 
     /**
      * Gets all end ClipboardHolders<br/>
-     *  - Usually this will return itself.<br/>
-     *  - If this is a multi clipboard, it will return the children
+     * - Usually this will return itself.<br/>
+     * - If this is a multi clipboard, it will return the children
+     *
      * @return a List of end ClipboardHolders
      */
     public List<ClipboardHolder> getHolders() {
@@ -123,5 +126,4 @@ public class ClipboardHolder {
     }
 
 
-
 }

worldedit-core/src/main/java/com/sk89q/worldedit/session/PasteBuilder.java

@@ -56,7 +56,7 @@ public class PasteBuilder {
     /**
      * Create a new instance.
      *
-     * @param holder the clipboard holder
+     * @param holder       the clipboard holder
      * @param targetExtent an extent
      */
     PasteBuilder(ClipboardHolder holder, Extent targetExtent) {

worldedit-core/src/main/java/com/sk89q/worldedit/session/SessionManager.java

@@ -44,6 +44,7 @@ import com.sk89q.worldedit.world.item.ItemType;
 import com.sk89q.worldedit.world.item.ItemTypes;
 import org.apache.logging.log4j.Logger;
 
+import javax.annotation.Nullable;
 import java.io.File;
 import java.io.IOException;
 import java.util.HashMap;
@@ -53,7 +54,6 @@ import java.util.Timer;
 import java.util.TimerTask;
 import java.util.UUID;
 import java.util.concurrent.Callable;
-import javax.annotation.Nullable;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
@@ -221,7 +221,8 @@ public class SessionManager {
         return false;
     }
 
-    private void setDefaultWand(String sessionItem, String configItem, LocalSession session, Tool wand) throws InvalidToolBindException {
+    private void setDefaultWand(String sessionItem, String configItem, LocalSession session, Tool wand) throws
+            InvalidToolBindException {
         ItemType wandItem = null;
         if (sessionItem != null) {
             wandItem = ItemTypes.get(sessionItem);
@@ -373,6 +374,7 @@ public class SessionManager {
      * Stores the owner of a session, the session, and the last active time.
      */
     private static final class SessionHolder {
+
         private final SessionKey key;
         private final LocalSession session;
         private long lastActive = System.currentTimeMillis();
@@ -382,6 +384,7 @@ public class SessionManager {
             this.key = key;
             this.session = session;
         }
+
     }
 
     /**
@@ -389,12 +392,14 @@ public class SessionManager {
      * of time. Commits them as well.
      */
     private class SessionTracker extends TimerTask {
+
         @Override
         public void run() {
             synchronized (SessionManager.this) {
                 saveChangedSessions();
             }
         }
+
     }
 
 }

worldedit-core/src/main/java/com/sk89q/worldedit/session/TransientSessionException.java

@@ -39,4 +39,5 @@ public class TransientSessionException extends Exception {
     public TransientSessionException(Throwable cause) {
         super(cause);
     }
+
 }

worldedit-core/src/main/java/com/sk89q/worldedit/session/request/Request.java

@@ -124,6 +124,7 @@ public final class Request {
     }
 
     //FAWE start
+
     /**
      * Get the request session.
      *
@@ -185,4 +186,5 @@ public final class Request {
     private void invalidate() {
         valid = false;
     }
+
 }

worldedit-core/src/main/java/com/sk89q/worldedit/session/request/RequestExtent.java

@@ -34,8 +34,8 @@ import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 
-import java.util.List;
 import javax.annotation.Nullable;
+import java.util.List;
 
 public class RequestExtent implements Extent {
 
@@ -99,7 +99,7 @@ public class RequestExtent implements Extent {
 
     @Override
     public <T extends BlockStateHolder<T>> boolean setBlock(int x, int y, int z, T block)
-        throws WorldEditException {
+            throws WorldEditException {
         return getExtent().setBlock(x, y, z, block);
     }
 
@@ -132,4 +132,5 @@ public class RequestExtent implements Extent {
         request = null;
         return commit;
     }
+
 }

worldedit-core/src/main/java/com/sk89q/worldedit/session/storage/SessionStore.java

@@ -48,7 +48,7 @@ public interface SessionStore {
     /**
      * Save the given session identified by the given UUID.
      *
-     * @param id the UUID
+     * @param id      the UUID
      * @param session a session
      * @throws IOException thrown on read error
      */