diff --git a/worldedit-sponge/build.gradle b/worldedit-sponge/build.gradle
index 5bae0e26d..1786ce8c6 100644
--- a/worldedit-sponge/build.gradle
+++ b/worldedit-sponge/build.gradle
@@ -13,7 +13,7 @@ plugins {
 
 dependencies {
     compile project(':worldedit-core')
-    compile 'org.spongepowered:spongeapi:6.0.0-SNAPSHOT'
+    compile 'org.spongepowered:spongeapi:7.0.0-SNAPSHOT'
     testCompile group: 'org.mockito', name: 'mockito-core', version:'1.9.0-rc1'
 }
 
diff --git a/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongePermissionsProvider.java b/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongePermissionsProvider.java
index 049bd4ab1..6b324ce80 100644
--- a/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongePermissionsProvider.java
+++ b/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongePermissionsProvider.java
@@ -25,6 +25,7 @@ import org.spongepowered.api.entity.living.player.Player;
 import org.spongepowered.api.service.context.Contextual;
 import org.spongepowered.api.service.permission.PermissionDescription;
 import org.spongepowered.api.service.permission.PermissionService;
+import org.spongepowered.api.service.permission.SubjectReference;
 
 import java.util.stream.Collectors;
 
@@ -36,15 +37,14 @@ public class SpongePermissionsProvider {
 
     public void registerPermission(CommandCallable command, String permission) {
         Sponge.getGame().getServiceManager().getRegistration(PermissionService.class).ifPresent((permissionService -> {
-            PermissionDescription.Builder permissionBuilder = permissionService.getProvider().newDescriptionBuilder(SpongeWorldEdit.inst()).get();
+            PermissionDescription.Builder permissionBuilder = permissionService.getProvider().newDescriptionBuilder(SpongeWorldEdit.inst());
             permissionBuilder.id(permission).register();
         }));
     }
 
     public String[] getGroups(Player player) {
-        PermissionService permissionService = Sponge.getGame().getServiceManager().getRegistration(PermissionService.class).get().getProvider();
         return player.getParents().stream()
-                .filter(subject -> subject.getContainingCollection().equals(permissionService.getGroupSubjects()))
-                .map(Contextual::getIdentifier).collect(Collectors.toList()).toArray(new String[0]);
+                .map(SubjectReference::getSubjectIdentifier)
+                .collect(Collectors.toList()).toArray(new String[0]);
     }
 }
diff --git a/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeWorld.java b/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeWorld.java
index 116920a36..0bc63daeb 100644
--- a/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeWorld.java
+++ b/worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeWorld.java
@@ -43,10 +43,6 @@ import org.spongepowered.api.data.property.block.GroundLuminanceProperty;
 import org.spongepowered.api.data.property.block.SkyLuminanceProperty;
 import org.spongepowered.api.entity.EntityType;
 import org.spongepowered.api.entity.EntityTypes;
-import org.spongepowered.api.event.cause.Cause;
-import org.spongepowered.api.event.cause.NamedCause;
-import org.spongepowered.api.event.cause.entity.spawn.SpawnCause;
-import org.spongepowered.api.event.cause.entity.spawn.SpawnTypes;
 import org.spongepowered.api.world.BlockChangeFlag;
 import org.spongepowered.api.world.World;
 
@@ -197,7 +193,7 @@ public abstract class SpongeWorld extends AbstractWorld {
         );
 
         entity.offer(Keys.REPRESENTED_ITEM, SpongeWorldEdit.toSpongeItemStack(item).createSnapshot());
-        getWorld().spawnEntity(entity, ENTITY_SPAWN_CAUSE);
+        getWorld().spawnEntity(entity);
     }
 
     @Override
@@ -253,11 +249,6 @@ public abstract class SpongeWorld extends AbstractWorld {
 
     protected abstract void applyEntityData(org.spongepowered.api.entity.Entity entity, BaseEntity data);
 
-    private static final Cause ENTITY_SPAWN_CAUSE = Cause
-            .source(SpawnCause.builder().type(SpawnTypes.PLUGIN).build())
-            .suggestNamed(NamedCause.SOURCE, SpongeWorldEdit.inst())
-            .build();
-
     @Nullable
     @Override
     public Entity createEntity(Location location, BaseEntity entity) {
@@ -279,7 +270,7 @@ public abstract class SpongeWorld extends AbstractWorld {
                 new Vector3d(dir.getX(), dir.getY(), dir.getZ())
         );
 
-        if (world.spawnEntity(newEnt, ENTITY_SPAWN_CAUSE)) {
+        if (world.spawnEntity(newEnt)) {
             return new SpongeEntity(newEnt);
         }
 
diff --git a/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$1.class b/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$1.class
new file mode 100644
index 000000000..256a05661
Binary files /dev/null and b/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$1.class differ
diff --git a/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$SpongeNMSWorld.class b/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$SpongeNMSWorld.class
new file mode 100644
index 000000000..61ce0a7db
Binary files /dev/null and b/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$SpongeNMSWorld.class differ
diff --git a/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$TileEntityBaseBlock.class b/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$TileEntityBaseBlock.class
new file mode 100644
index 000000000..1c5b4c31c
Binary files /dev/null and b/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl$TileEntityBaseBlock.class differ
diff --git a/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl.class b/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl.class
new file mode 100644
index 000000000..cdc162c16
Binary files /dev/null and b/worldedit-sponge/src/main/resources/com/sk89q/worldedit/sponge/adapter/impl/Sponge_1_12_1_Impl.class differ