diff --git a/.settings/org.eclipse.core.resources.prefs b/.settings/org.eclipse.core.resources.prefs
index 839d647..55a9c77 100644
--- a/.settings/org.eclipse.core.resources.prefs
+++ b/.settings/org.eclipse.core.resources.prefs
@@ -1,5 +1,6 @@
 eclipse.preferences.version=1
 encoding//src/main/java=UTF-8
 encoding//src/main/resources=UTF-8
+encoding//src/main/resources/locales=UTF-8
 encoding//src/test/java=UTF-8
 encoding/<project>=UTF-8
diff --git a/src/main/java/world/bentobox/greenhouses/data/adapters/BiomeRecipeAdapter.java b/src/main/java/world/bentobox/greenhouses/data/adapters/BiomeRecipeAdapter.java
index 78a8aba..461292d 100644
--- a/src/main/java/world/bentobox/greenhouses/data/adapters/BiomeRecipeAdapter.java
+++ b/src/main/java/world/bentobox/greenhouses/data/adapters/BiomeRecipeAdapter.java
@@ -12,11 +12,17 @@ public class BiomeRecipeAdapter implements AdapterInterface<BiomeRecipe, String>
 
     @Override
     public BiomeRecipe deserialize(Object object) {
+        if (object instanceof String && ((String)object).equals("null")) {
+            return null;
+        }
         return RecipeManager.getBiomeRecipies((String)object).orElse(null);
     }
 
     @Override
     public String serialize(Object object) {
+        if (object == null) {
+            return "null";
+        }
         return ((BiomeRecipe)object).getName();
     }
 
diff --git a/src/main/java/world/bentobox/greenhouses/data/adapters/RectangleAdapter.java b/src/main/java/world/bentobox/greenhouses/data/adapters/RectangleAdapter.java
index 7fa42c3..24cfac0 100644
--- a/src/main/java/world/bentobox/greenhouses/data/adapters/RectangleAdapter.java
+++ b/src/main/java/world/bentobox/greenhouses/data/adapters/RectangleAdapter.java
@@ -13,9 +13,11 @@ public class RectangleAdapter implements AdapterInterface<Rectangle, String> {
     @Override
     public Rectangle deserialize(Object object) {
         if (object instanceof String) {
-            String[] s = ((String)object).split(",");
-            if (s.length == 4) {
-                return new Rectangle(Integer.valueOf(s[0]), Integer.valueOf(s[1]), Integer.valueOf(s[2]), Integer.valueOf(s[3]));
+            if (!((String)object).equals("null")) {
+                String[] s = ((String)object).split(",");
+                if (s.length == 4) {
+                    return new Rectangle(Integer.valueOf(s[0]), Integer.valueOf(s[1]), Integer.valueOf(s[2]), Integer.valueOf(s[3]));
+                }
             }
         }
         return null;
@@ -24,7 +26,7 @@ public class RectangleAdapter implements AdapterInterface<Rectangle, String> {
     @Override
     public String serialize(Object object) {
         Rectangle r = (Rectangle)object;
-        return r == null ? "" : r.x + ","+ r.y + "," + r.width + "," + r.height;
+        return r == null ? "null" : r.x + ","+ r.y + "," + r.width + "," + r.height;
     }
 
 }
diff --git a/src/test/java/world/bentobox/greenhouses/data/adapters/BiomeRecipeAdapterTest.java b/src/test/java/world/bentobox/greenhouses/data/adapters/BiomeRecipeAdapterTest.java
new file mode 100644
index 0000000..5f57f9b
--- /dev/null
+++ b/src/test/java/world/bentobox/greenhouses/data/adapters/BiomeRecipeAdapterTest.java
@@ -0,0 +1,91 @@
+/**
+ * 
+ */
+package world.bentobox.greenhouses.data.adapters;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.Optional;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mockito;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+
+import world.bentobox.greenhouses.greenhouse.BiomeRecipe;
+import world.bentobox.greenhouses.managers.RecipeManager;
+
+/**
+ * @author tastybento
+ *
+ */
+@RunWith(PowerMockRunner.class)
+@PrepareForTest( {RecipeManager.class} )
+public class BiomeRecipeAdapterTest {
+
+    private BiomeRecipeAdapter bra;
+    private BiomeRecipe recipe;
+
+    /**
+     * @throws java.lang.Exception
+     */
+    @Before
+    public void setUp() throws Exception {
+        bra = new BiomeRecipeAdapter();
+        
+        PowerMockito.mockStatic(RecipeManager.class);
+        recipe = mock(BiomeRecipe.class);
+        Optional<BiomeRecipe> optionalRecipe = Optional.of(recipe);
+        when(RecipeManager.getBiomeRecipies(Mockito.eq("recipe_name"))).thenReturn(optionalRecipe);
+        when(RecipeManager.getBiomeRecipies(Mockito.eq("nothing"))).thenReturn(Optional.empty());
+    }
+
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.BiomeRecipeAdapter#deserialize(java.lang.Object)}.
+     */
+    @Test
+    public void testDeserialize() {
+        assertEquals(recipe, bra.deserialize("recipe_name"));
+    }
+    
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.BiomeRecipeAdapter#deserialize(java.lang.Object)}.
+     */
+    @Test
+    public void testDeserializeNoRecipe() {
+        assertNull(bra.deserialize("nothing"));
+    }
+    
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.BiomeRecipeAdapter#deserialize(java.lang.Object)}.
+     */
+    @Test
+    public void testDeserializeNull() {
+        assertNull(bra.deserialize("null"));
+    }
+
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.BiomeRecipeAdapter#serialize(java.lang.Object)}.
+     */
+    @Test
+    public void testSerialize() {
+        BiomeRecipe br = mock(BiomeRecipe.class);
+        when(br.getName()).thenReturn("recipe_name");
+        assertEquals("recipe_name", bra.serialize(br));
+    }
+    
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.BiomeRecipeAdapter#serialize(java.lang.Object)}.
+     */
+    @Test
+    public void testSerializeNull() {
+        assertEquals("null", bra.serialize(null));
+    }
+
+}
diff --git a/src/test/java/world/bentobox/greenhouses/data/adapters/RectangleAdapterTest.java b/src/test/java/world/bentobox/greenhouses/data/adapters/RectangleAdapterTest.java
new file mode 100644
index 0000000..e9b8ccf
--- /dev/null
+++ b/src/test/java/world/bentobox/greenhouses/data/adapters/RectangleAdapterTest.java
@@ -0,0 +1,62 @@
+/**
+ * 
+ */
+package world.bentobox.greenhouses.data.adapters;
+
+import static org.junit.Assert.*;
+
+import java.awt.Rectangle;
+
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * @author tastybento
+ *
+ */
+public class RectangleAdapterTest {
+
+    private RectangleAdapter ra;
+
+    /**
+     * @throws java.lang.Exception
+     */
+    @Before
+    public void setUp() throws Exception {
+        ra = new RectangleAdapter();
+    }
+
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.RectangleAdapter#Serialize(java.lang.Object)}.
+     */
+    @Test
+    public void testSerialize() {
+        Rectangle rectangle = new Rectangle(10,20,30,40);;
+        assertEquals("10,20,30,40", ra.serialize(rectangle));
+    }
+    
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.RectangleAdapter#serialize(java.lang.Object)}.
+     */
+    @Test
+    public void testSerializeNull() {
+        assertEquals("null", ra.serialize(null));
+    }
+
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.RectangleAdapter#serialize(java.lang.Object)}.
+     */
+    @Test
+    public void testDeserialize() {
+        Rectangle rectangle = new Rectangle(10,20,30,40);;
+        assertEquals(rectangle, ra.deserialize("10,20,30,40"));
+    }
+
+    /**
+     * Test method for {@link world.bentobox.greenhouses.data.adapters.RectangleAdapter#deserialize(java.lang.Object)}.
+     */
+    @Test
+    public void testDeserializeNull() {
+        assertNull(ra.deserialize("null"));
+    }
+}