Instead of deleting old files, make new one

Assembly/dependency-reduced-pom.xml

@@ -3,7 +3,7 @@
   <parent>
     <artifactId>AntiVPN</artifactId>
     <groupId>dev.brighten.antivpn</groupId>
-    <version>1.8.2</version>
+    <version>1.8.2.1</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>Assembly</artifactId>

Assembly/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>AntiVPN</artifactId>
         <groupId>dev.brighten.antivpn</groupId>
-        <version>1.8.2</version>
+        <version>1.8.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 

Bukkit/dependency-reduced-pom.xml

@@ -3,7 +3,7 @@
   <parent>
     <artifactId>AntiVPN</artifactId>
     <groupId>dev.brighten.antivpn</groupId>
-    <version>1.8.2</version>
+    <version>1.8.2.1</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>Bukkit</artifactId>
@@ -56,7 +56,7 @@
     <dependency>
       <groupId>dev.brighten.antivpn</groupId>
       <artifactId>Common</artifactId>
-      <version>1.8.2</version>
+      <version>1.8.2.1</version>
       <scope>provided</scope>
     </dependency>
     <dependency>

Bukkit/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>AntiVPN</artifactId>
         <groupId>dev.brighten.antivpn</groupId>
-        <version>1.8.2</version>
+        <version>1.8.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -69,7 +69,7 @@
         <dependency>
             <groupId>dev.brighten.antivpn</groupId>
             <artifactId>Common</artifactId>
-            <version>1.8.2</version>
+            <version>1.8.2.1</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

Bukkit/src/main/java/dev/brighten/antivpn/bukkit/BukkitListener.java

@@ -68,7 +68,6 @@ public class BukkitListener extends VPNExecutor implements Listener {
     @EventHandler
     public void onListener(final PlayerLoginEvent event) {
         //If they're exempt, don't check.
-        System.out.println(event.getAddress().getHostAddress() + ";" + event.getPlayer().getUniqueId() + ";" + event.getPlayer().getName());
         if(event.getPlayer().hasPermission("antivpn.bypass") //Has bypass permission
                 || AntiVPN.getInstance().getExecutor().isWhitelisted(event.getPlayer().getUniqueId()) //Is exempt
                 //Or has a name that starts with a certain prefix. This is for Bedrock exempting.

Bungee/dependency-reduced-pom.xml

@@ -3,7 +3,7 @@
   <parent>
     <artifactId>AntiVPN</artifactId>
     <groupId>dev.brighten.antivpn</groupId>
-    <version>1.8.2</version>
+    <version>1.8.2.1</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>Bungee</artifactId>
@@ -50,7 +50,7 @@
     <dependency>
       <groupId>dev.brighten.antivpn</groupId>
       <artifactId>Common</artifactId>
-      <version>1.8.2</version>
+      <version>1.8.2.1</version>
       <scope>provided</scope>
     </dependency>
     <dependency>

Bungee/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>AntiVPN</artifactId>
         <groupId>dev.brighten.antivpn</groupId>
-        <version>1.8.2</version>
+        <version>1.8.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -63,7 +63,7 @@
         <dependency>
             <groupId>dev.brighten.antivpn</groupId>
             <artifactId>Common</artifactId>
-            <version>1.8.2</version>
+            <version>1.8.2.1</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

Common/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>AntiVPN</artifactId>
         <groupId>dev.brighten.antivpn</groupId>
-        <version>1.8.2</version>
+        <version>1.8.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 

Common/src/main/java/dev/brighten/antivpn/database/sql/utils/MySQL.java

@@ -1,11 +1,17 @@
 package dev.brighten.antivpn.database.sql.utils;
 
 import dev.brighten.antivpn.AntiVPN;
+import org.h2.jdbc.JdbcSQLNonTransientConnectionException;
 
 import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.nio.file.Files;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.SQLException;
+import java.util.Properties;
 
 public class MySQL {
     private static Connection conn;
@@ -36,13 +42,17 @@ public class MySQL {
         }
     }
 
+    private static boolean attemptedTwice = false;
     public static void initH2() {
-        File dataFolder = new File(AntiVPN.getInstance().getPluginFolder(), "databases" + File.separator + "database");
+        File dataFolder = new File(AntiVPN.getInstance().getPluginFolder(), "databases");
+        File databaseFile = new File(dataFolder, "database");
         try {
-            Class.forName("org.h2.Driver");
-            conn = new NonClosableConnection(DriverManager.getConnection ("jdbc:h2:file:" +
-                    dataFolder.getAbsolutePath(),
-                    AntiVPN.getInstance().getVpnConfig().getUsername(),AntiVPN.getInstance().getVpnConfig().getPassword()));
+            Constructor jdbcConnection = Class.forName("org.h2.jdbc.JdbcConnection")
+                    .getConstructor(String.class, Properties.class, String.class, Object.class, boolean.class);
+            conn = new NonClosableConnection((Connection)jdbcConnection.newInstance("jdbc:h2:file:" +
+                            databaseFile.getAbsolutePath(),
+                    new Properties(), AntiVPN.getInstance().getVpnConfig().getUsername(),
+                    AntiVPN.getInstance().getVpnConfig().getPassword(), false));
             conn.setAutoCommit(true);
             Query.use(conn);
             AntiVPN.getInstance().getExecutor().log("Connection to H2 has been established.");
@@ -51,7 +61,47 @@ public class MySQL {
             ex.printStackTrace();
         } catch (ClassNotFoundException ex) {
             AntiVPN.getInstance().getExecutor().log("No H2 library found!");
+        } catch (NoSuchMethodException | InstantiationException | IllegalAccessException e) {
+            AntiVPN.getInstance().getExecutor().log("Java exception on initialize");
+            e.printStackTrace();
+        } catch(InvocationTargetException e) {
+            if(attemptedTwice) return;
+            if(e.getCause() instanceof JdbcSQLNonTransientConnectionException) {
+                File[] files = dataFolder.listFiles();
+
+                if(files == null) {
+                    e.printStackTrace();
+                    return;
+                }
+
+                File oldDbs = new File(dataFolder, "old");
+
+                boolean made = false;
+                if(!oldDbs.isDirectory()) {
+                    made = oldDbs.mkdir();
+                } else made = true;
+
+                if(!made) {
+                    throw new RuntimeException(String.format("Unable to upgrade H2 files since this application " +
+                            "was unable to create a new directory %s (insufficient permissions?)!", oldDbs.getPath()));
+                }
+                AntiVPN.getInstance().getExecutor().log("Upgrading h2 files...");
+                for (File file : files) {
+                    if(file.getName().endsWith(".db")) {
+                        try {
+                            Files.copy(file.toPath(), new File(oldDbs, file.getName()).toPath());
+                        } catch (IOException ex) {
+                            throw new RuntimeException(ex);
+                        }
+                        if(file.delete()) {
+                            AntiVPN.getInstance().getExecutor().log("Successfully deleted old " + file.getName());
+                        } else throw new RuntimeException("Unable to delete old database file " + file.getName());
+                    }
+                }
+                initH2();
+            } else e.printStackTrace();
         }
+        attemptedTwice = true;
     }
 
     public static void use() {
@@ -70,6 +120,7 @@ public class MySQL {
                 } else conn.close();
                 conn = null;
             }
+            attemptedTwice = false;
         } catch (Exception e) {
             e.printStackTrace();
         }

Velocity/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>AntiVPN</artifactId>
         <groupId>dev.brighten.antivpn</groupId>
-        <version>1.8.2</version>
+        <version>1.8.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>dev.brighten.antivpn</groupId>
             <artifactId>Common</artifactId>
-            <version>1.8.2</version>
+            <version>1.8.2.1</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

pom.xml

@@ -7,7 +7,7 @@
     <groupId>dev.brighten.antivpn</groupId>
     <artifactId>AntiVPN</artifactId>
     <packaging>pom</packaging>
-    <version>1.8.2</version>
+    <version>1.8.2.1</version>
 
     <modules>
         <module>Common</module>