If we're moving to Java 9, let's move to Java 11 as it is LTS

I think this will help with performance in 1.13+ version, but will keep working in 1.9+

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.btk5h</groupId>
     <artifactId>skript-db</artifactId>
-    <version>1.3.3</version>
+    <version>1.3.5</version>
     <packaging>jar</packaging>
 
     <repositories>
@@ -45,8 +45,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.6.1</version>
                 <configuration>
-                    <source>8</source>
+                    <source>11</source>
-                    <target>8</target>
+                    <target>11</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>
@@ -81,7 +81,7 @@
         <dependency>
             <groupId>com.zaxxer</groupId>
             <artifactId>HikariCP</artifactId>
-            <version>4.0.3</version>
+            <version>5.0.1</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
@@ -93,14 +93,14 @@
         <dependency>
             <groupId>com.github.SkriptLang</groupId>
             <artifactId>Skript</artifactId>
-            <version>2.6-alpha1</version>
+            <version>2.6-beta3</version>
             <scope>provided</scope>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.mariadb.jdbc/mariadb-java-client -->
         <dependency>
             <groupId>org.mariadb.jdbc</groupId>
             <artifactId>mariadb-java-client</artifactId>
-            <version>2.7.2</version>
+            <version>3.0.3</version>
             <scope>compile</scope>
         </dependency>
 

src/main/java/com/btk5h/skriptdb/skript/EffExecuteStatement.java

@@ -10,10 +10,14 @@ import com.btk5h.skriptdb.SkriptDB;
 import com.btk5h.skriptdb.SkriptUtil;
 import com.zaxxer.hikari.HikariDataSource;
 import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
 import org.bukkit.event.Event;
 
 import javax.sql.DataSource;
 import javax.sql.rowset.CachedRowSet;
+import javax.sql.rowset.serial.SerialBlob;
+import javax.sql.rowset.serial.SerialException;
+import java.io.IOException;
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSetMetaData;
@@ -299,6 +303,19 @@ public class EffExecuteStatement extends Effect {
     }
 
     private void setVariable(Event e, String name, Object obj) {
+
+        //fix mediumblob and similar column types, so they return a String correctly
+        if (obj.getClass().getName().equals("[B")) {
+            obj = new String((byte[]) obj);
+
+        //in some servers instead of being byte array, it appears as SerialBlob (depends on mc version, 1.12.2 is bvte array, 1.16.5 SerialBlob)
+        } else if (obj instanceof SerialBlob) {
+            try {
+                obj = new String(((SerialBlob) obj).getBinaryStream().readAllBytes());
+            } catch (IOException | SerialException ex) {
+                ex.printStackTrace();
+            }
+        }
         Variables.setVariable(name.toLowerCase(Locale.ENGLISH), obj, e, isLocal);
     }
 

src/main/java/com/btk5h/skriptdb/skript/EvtSQLQueryComplete.java

@@ -6,7 +6,6 @@ import ch.njol.skript.lang.SkriptEvent;
 import ch.njol.skript.lang.SkriptParser;
 import com.btk5h.skriptdb.events.SQLQueryCompleteEvent;
 import org.bukkit.event.Event;
-import org.eclipse.jdt.annotation.Nullable;
 
 public class EvtSQLQueryComplete extends SkriptEvent {
     static {
@@ -24,7 +23,7 @@ public class EvtSQLQueryComplete extends SkriptEvent {
     }
 
     @Override
-    public String toString(@Nullable Event event, boolean debug) {
+    public String toString(Event event, boolean debug) {
         return "complete of sql query";
     }
 }

src/main/resources/plugin.yml

@@ -1,5 +1,5 @@
 name: skript-db
-version: 1.3.3
+version: 1.3.5
 main: com.btk5h.skriptdb.SkriptDB
 depend: [Skript]
 authors: [btk5h, FranKusmiruk, Govindas, TPGamesNL]