diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index d581433..f4a9fa0 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 99202cc..5f027c4 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -5,22 +5,33 @@
     <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
     <option name="myNullables">
       <value>
-        <list size="5">
+        <list size="10">
           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
           <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
           <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
           <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
+          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
+          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.Nullable" />
+          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableDecl" />
+          <item index="9" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableType" />
         </list>
       </value>
     </option>
     <option name="myNotNulls">
       <value>
-        <list size="4">
+        <list size="10">
           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
           <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
           <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
+          <item index="4" class="java.lang.String" itemvalue="javax.validation.constraints.NotNull" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
+          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
+          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.NonNull" />
+          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullDecl" />
+          <item index="9" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullType" />
         </list>
       </value>
     </option>
diff --git a/build.gradle b/build.gradle
index c6543e2..17b56e2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ buildscript {
         maven { url 'https://jitpack.io' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.0-rc02'
+        classpath 'com.android.tools.build:gradle:3.3.0-alpha08'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Additional libraries
diff --git a/simpleadapter/src/main/java/com/github/deckyfx/simpleadapter/parser/gson/DateTimeSerializer.java b/simpleadapter/src/main/java/com/github/deckyfx/simpleadapter/parser/gson/DateTimeSerializer.java
index 3b0d704..3a6e08d 100644
--- a/simpleadapter/src/main/java/com/github/deckyfx/simpleadapter/parser/gson/DateTimeSerializer.java
+++ b/simpleadapter/src/main/java/com/github/deckyfx/simpleadapter/parser/gson/DateTimeSerializer.java
@@ -24,7 +24,9 @@ public class DateTimeSerializer implements JsonDeserializer<Date>, JsonSerialize
             "yyyy-MM-dd HH:mm:ss",
             "yyyy-MM-dd",
             "HH:mm:ss",
-            "timestamp"
+            "timestamp",
+            "blank",
+            "null"
     };
 
     @Override
@@ -35,6 +37,20 @@ public Date deserialize(JsonElement jsonElement, Type typeOF, JsonDeserializatio
                     return new Date(jsonElement.getAsLong());
                 } catch (Exception   e) {
                 }
+            } else if (format.equalsIgnoreCase("null")) {
+                try {
+                    if (jsonElement.getAsString() == null) {
+                        return null;
+                    }
+                } catch (Exception   e) {
+                }
+            } else if (format.equalsIgnoreCase("blank")) {
+                try {
+                    if (jsonElement.getAsString().length() == 0) {
+                        return null;
+                    }
+                } catch (Exception   e) {
+                }
             } else {
                 try {
                     return new SimpleDateFormat(format, Locale.US).parse(jsonElement.getAsString());