Trying fixing failing schem saving

SpigotCore_14/pom.xml

@@ -45,11 +45,5 @@
             <version>2.0</version>
             <scope>compile</scope>
         </dependency>
-        <dependency>
-            <groupId>steamwar</groupId>
-            <artifactId>SpigotCore_12</artifactId>
-            <version>2.0</version>
-            <scope>compile</scope>
-        </dependency>
     </dependencies>
 </project>

SpigotCore_14/src/de/steamwar/sql/Schematic_14.java

@@ -4,8 +4,8 @@ import com.sk89q.worldedit.EmptyClipboardException;
 import com.sk89q.worldedit.bukkit.WorldEditPlugin;
 import com.sk89q.worldedit.extension.platform.Actor;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
+import com.sk89q.worldedit.extent.clipboard.io.BuiltInClipboardFormat;
 import com.sk89q.worldedit.extent.clipboard.io.ClipboardFormat;
-import com.sk89q.worldedit.extent.clipboard.io.ClipboardFormats;
 import com.sk89q.worldedit.session.ClipboardHolder;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
@@ -17,8 +17,8 @@ import java.io.InputStream;
 class Schematic_14 {
     private Schematic_14(){}
 
-    private static final ClipboardFormat SCHEMATIC = ClipboardFormats.findByAlias("schematic");
+    private static final ClipboardFormat SCHEMATIC = BuiltInClipboardFormat.MCEDIT_SCHEMATIC;
-    private static final ClipboardFormat SCHEM = ClipboardFormats.findByAlias("schem");
+    private static final ClipboardFormat SCHEM = BuiltInClipboardFormat.SPONGE_SCHEMATIC;
 
     static byte[] getPlayerClipboard(Player player, boolean schemFormat) throws IOException, NoClipboardException {
         ClipboardHolder clipboardHolder;
@@ -35,10 +35,8 @@ class Schematic_14 {
         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
         try{
             if(schemFormat){
-                assert SCHEM != null;
                 SCHEM.getWriter(outputStream).write(clipboard);
             }else{
-                assert SCHEMATIC != null;
                 SCHEMATIC.getWriter(outputStream).write(clipboard);
             }
         }catch(NullPointerException e){
@@ -60,10 +58,8 @@ class Schematic_14 {
     static Clipboard getClipboard(InputStream is, boolean schemFormat) throws IOException, NoClipboardException {
         try {
             if(schemFormat){
-                assert SCHEM != null;
                 return SCHEM.getReader(is).read();
             }else{
-                assert SCHEMATIC != null;
                 return SCHEMATIC.getReader(is).read();
             }
         } catch (NullPointerException e) {