the bootstrapper was resetting the database configuration that the db cache was dependent on, so that dependency was changed

src/main/java/org/qortal/api/restricted/resource/AdminResource.java

@@ -1092,25 +1092,4 @@ public class AdminResource {
 
 		return info;
 	}
-
-	@GET
-	@Path("/dbstates")
-	@Operation(
-			summary = "Get DB States",
-			description = "Get DB States",
-			responses = {
-					@ApiResponse(
-							content = @Content(mediaType = MediaType.APPLICATION_JSON, array = @ArraySchema(schema = @Schema(implementation = DbConnectionInfo.class)))
-					)
-			}
-	)
-	public List<DbConnectionInfo> getDbConnectionsStates() {
-
-		try {
-			return Controller.REPOSITORY_FACTORY.getDbConnectionsStates();
-		} catch (Exception e) {
-			LOGGER.error(e.getMessage(), e);
-			return new ArrayList<>(0);
-		}
-	}
 }

src/main/java/org/qortal/controller/Controller.java

@@ -73,8 +73,6 @@ import java.util.stream.Collectors;
 
 public class Controller extends Thread {
 
-	public static HSQLDBRepositoryFactory REPOSITORY_FACTORY;
-
 	static {
 		// This must go before any calls to LogManager/Logger
 		System.setProperty("log4j2.formatMsgNoLookups", "true");
@@ -405,8 +403,8 @@ public class Controller extends Thread {
 
 		LOGGER.info("Starting repository");
 		try {
-			REPOSITORY_FACTORY = new HSQLDBRepositoryFactory(getRepositoryUrl());
+			HSQLDBRepositoryFactory repositoryFactory = new HSQLDBRepositoryFactory(getRepositoryUrl());
-			RepositoryManager.setRepositoryFactory(REPOSITORY_FACTORY);
+			RepositoryManager.setRepositoryFactory(repositoryFactory);
 			RepositoryManager.setRequestedCheckpoint(Boolean.TRUE);
 
 			try (final Repository repository = RepositoryManager.getRepository()) {

src/main/java/org/qortal/repository/Repository.java

@@ -1,6 +1,7 @@
 package org.qortal.repository;
 
 import java.io.IOException;
+import java.sql.Connection;
 import java.util.concurrent.TimeoutException;
 
 public interface Repository extends AutoCloseable {
@@ -62,4 +63,5 @@ public interface Repository extends AutoCloseable {
 
 	public static void attemptRecovery(String connectionUrl, String name) throws DataException {}
 
+    public Connection getConnection();
 }

src/main/java/org/qortal/repository/hsqldb/HSQLDBCacheUtils.java

@@ -468,7 +468,7 @@ public class HSQLDBCacheUtils {
 
                 Thread.currentThread().setName(DB_CACHE_TIMER_TASK);
 
-                try (final HSQLDBRepository respository = (HSQLDBRepository) Controller.REPOSITORY_FACTORY.getRepository()) {
+                try (final Repository respository = RepositoryManager.getRepository()) {
                     fillCache(ArbitraryResourceCache.getInstance(), respository);
                 }
                 catch( DataException e ) {
@@ -611,7 +611,7 @@ public class HSQLDBCacheUtils {
     private static int recordCurrentBalances(ConcurrentHashMap<Integer, List<AccountBalanceData>> balancesByHeight) {
         int currentHeight;
 
-        try (final HSQLDBRepository repository = (HSQLDBRepository) Controller.REPOSITORY_FACTORY.getRepository()) {
+        try (final Repository repository = RepositoryManager.getRepository()) {
 
             // get current balances
             List<AccountBalanceData> accountBalances = getAccountBalances(repository);
@@ -675,7 +675,7 @@ public class HSQLDBCacheUtils {
      * @param cache the cache to fill
      * @param repository the data source to fill the cache with
      */
-    public static void fillCache(ArbitraryResourceCache cache, HSQLDBRepository repository) {
+    public static void fillCache(ArbitraryResourceCache cache, Repository repository) {
 
         try {
             // ensure all data is committed in, before we query it
@@ -713,7 +713,7 @@ public class HSQLDBCacheUtils {
      *
      * @throws SQLException
      */
-    private static void fillNamepMap(ConcurrentHashMap<String, Integer> levelByName, HSQLDBRepository repository ) throws SQLException {
+    private static void fillNamepMap(ConcurrentHashMap<String, Integer> levelByName, Repository repository ) throws SQLException {
 
         StringBuilder sql = new StringBuilder(512);
 
@@ -721,7 +721,7 @@ public class HSQLDBCacheUtils {
         sql.append("FROM NAMES ");
         sql.append("INNER JOIN ACCOUNTS on owner = account ");
 
-        Statement statement = repository.connection.createStatement();
+        Statement statement = repository.getConnection().createStatement();
 
         ResultSet resultSet = statement.executeQuery(sql.toString());
 
@@ -744,7 +744,7 @@ public class HSQLDBCacheUtils {
      * @return the resources
      * @throws SQLException
      */
-    private static List<ArbitraryResourceData> getResources( HSQLDBRepository repository) throws SQLException {
+    private static List<ArbitraryResourceData> getResources( Repository repository) throws SQLException {
 
         List<ArbitraryResourceData> resources = new ArrayList<>();
 
@@ -756,7 +756,7 @@ public class HSQLDBCacheUtils {
         sql.append("LEFT JOIN ArbitraryMetadataCache USING (service, name, identifier) WHERE name IS NOT NULL");
 
         List<ArbitraryResourceData> arbitraryResources = new ArrayList<>();
-        Statement statement = repository.connection.createStatement();
+        Statement statement = repository.getConnection().createStatement();
 
         ResultSet resultSet = statement.executeQuery(sql.toString());
 
@@ -822,7 +822,7 @@ public class HSQLDBCacheUtils {
         return resources;
     }
 
-    public static List<AccountBalanceData> getAccountBalances(HSQLDBRepository repository) {
+    public static List<AccountBalanceData> getAccountBalances(Repository repository) {
 
         StringBuilder sql = new StringBuilder();
 
@@ -836,7 +836,7 @@ public class HSQLDBCacheUtils {
         LOGGER.info( "Getting account balances ...");
 
         try {
-            Statement statement = repository.connection.createStatement();
+            Statement statement = repository.getConnection().createStatement();
 
             ResultSet resultSet = statement.executeQuery(sql.toString());
 

src/main/java/org/qortal/repository/hsqldb/HSQLDBRepository.java

@@ -174,6 +174,11 @@ public class HSQLDBRepository implements Repository {
 
 	// Transaction COMMIT / ROLLBACK / savepoints
 
+	@Override
+	public Connection getConnection() {
+		return this.connection;
+	}
+
 	@Override
 	public void saveChanges() throws DataException {
 		long beforeQuery = this.slowQueryThreshold == null ? 0 : System.currentTimeMillis();