fix: bring back driver registration (#37)

src/main/java/com/aws/greengrass/disk/spool/DiskSpoolDAO.java

@@ -98,6 +98,7 @@ public DiskSpoolDAO(NucleusPaths paths) throws IOException {
  * @throws SQLException if database is unable to be created
  */
  public void initialize() throws SQLException {
+ registerDriver();
  try (LockScope ls = LockScope.lock(connectionLock.writeLock())) {
  close();
  connection = createConnection();
@@ -116,6 +117,16 @@ public void initialize() throws SQLException {
  }
  }
 
+ private void registerDriver() throws SQLException {
+ try {
+ // driver is registered statically within JDBC,
+ // so it will only happen once
+ Class.forName("org.sqlite.JDBC");
+ } catch (ClassNotFoundException e) {
+ throw new SQLException("unable to load driver", e);
+ }
+ }
+
  /**
  * Close any open DAO resources, including database connections.
  */