new library in gradle and another change I can't remember.

Core/build.gradle

@@ -11,7 +11,7 @@ dependencies {
     testCompileOnly("org.projectlombok:lombok:1.18.6")
     annotationProcessor("org.projectlombok:lombok:1.18.6")
     testAnnotationProcessor("org.projectlombok:lombok:1.18.6")
-
+    implementation 'net.kyori:text-adapter-bukkit:3.0.2'
     implementation 'com.github.Sauilitired:Jenkins4J:2.0-SNAPSHOT'
     implementation 'com.squareup.okhttp3:okhttp:3.14.0'
     implementation 'com.squareup.okio:okio:2.2.2'

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/SchematicHandler.java

@@ -28,6 +28,7 @@ import com.sk89q.worldedit.extent.clipboard.io.MCEditSchematicReader;
 import com.sk89q.worldedit.extent.clipboard.io.SpongeSchematicReader;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.world.block.BaseBlock;
+import org.jetbrains.annotations.NotNull;
 
 import java.io.*;
 import java.net.URL;
@@ -64,15 +65,16 @@ public abstract class SchematicHandler {
                 Iterator<Plot> i = plots.iterator();
                 final Plot plot = i.next();
                 i.remove();
-                String o = UUIDHandler.getName(plot.guessOwner());
-                if (o == null) {
-                    o = "unknown";
+                String owner = UUIDHandler.getName(plot.guessOwner());
+                if (owner == null) {
+                    owner = "unknown";
                 }
                 final String name;
                 if (namingScheme == null) {
-                    name = plot.getId().x + ";" + plot.getId().y + ',' + plot.getArea() + ',' + o;
+                    name =
+                        plot.getId().x + ";" + plot.getId().y + ',' + plot.getArea() + ',' + owner;
                 } else {
-                    name = namingScheme.replaceAll("%owner%", o)
+                    name = namingScheme.replaceAll("%owner%", owner)
                         .replaceAll("%id%", plot.getId().toString())
                         .replaceAll("%idx%", plot.getId().x + "")
                         .replaceAll("%idy%", plot.getId().y + "")
@@ -323,7 +325,7 @@ public abstract class SchematicHandler {
         return null;
     }
 
-    public Schematic getSchematic(URL url) {
+    public Schematic getSchematic(@NotNull URL url) {
         try {
             ReadableByteChannel rbc = Channels.newChannel(url.openStream());
             InputStream is = Channels.newInputStream(rbc);
@@ -334,10 +336,7 @@ public abstract class SchematicHandler {
         return null;
     }
 
-    public Schematic getSchematic(InputStream is) {
-        if (is == null) {
-            return null;
-        }
+    public Schematic getSchematic(@NotNull InputStream is) {
         try {
             SpongeSchematicReader ssr =
                 new SpongeSchematicReader(new NBTInputStream(new GZIPInputStream(is)));

build.gradle

@@ -67,6 +67,7 @@ subprojects {
             exclude(module: 'mockito-core')
             exclude(module: 'dummypermscompat')
         }
+        implementation 'net.kyori:text-api:3.0.0'
         //Minecraft uses Guava 21 as of 1.13.
         compile 'com.google.guava:guava:21.0'
         compileOnly 'org.jetbrains:annotations:17.0.0'