Program: 51942
Project: 51942
Buggy source:
/** 
 * Delete all the existing DBMS browse tables. The DBMS browse system has been replaced by Discovery / Solr. <P> NOTE: This method was based on the "clearDatabase()" method of the old DSpace 5.x `IndexBrowse` class. As such, it is essentially performing the same as the old "./dspace index-db-browse -f -d" command. But, it also removes old, obsolete item_count tables and communities2item table
 * @param connection Database Connection
 * @throws BrowseException
 */
private void removeDBMSBrowseTables(Connection connection) throws BrowseException {
  int i=1;
  int countTablesNotFound=0;
  while (countTablesNotFound < 3) {
    String tableName=BrowseIndex.getTableName(i,false,false,false,false);
    String distinctTableName=BrowseIndex.getTableName(i,false,false,true,false);
    String distinctMapName=BrowseIndex.getTableName(i,false,false,false,true);
    String sequence=BrowseIndex.getSequenceName(i,false,false);
    String mapSequence=BrowseIndex.getSequenceName(i,false,true);
    String distinctSequence=BrowseIndex.getSequenceName(i,true,false);
    String colViewName=BrowseIndex.getTableName(i,false,true,false,false);
    String comViewName=BrowseIndex.getTableName(i,true,false,false,false);
    String distinctColViewName=BrowseIndex.getTableName(i,false,true,false,true);
    String distinctComViewName=BrowseIndex.getTableName(i,true,false,false,true);
    if (DatabaseUtils.tableExists(connection,tableName,false)) {
      dropTable(connection,tableName);
      dropSequence(connection,sequence);
      dropView(connection,colViewName);
      dropView(connection,comViewName);
    }
 else {
      countTablesNotFound++;
    }
    if (DatabaseUtils.tableExists(connection,distinctTableName,false)) {
      dropTable(connection,distinctTableName);
      dropTable(connection,distinctMapName);
      dropSequence(connection,distinctSequence);
      dropSequence(connection,mapSequence);
      dropView(connection,distinctColViewName);
      dropView(connection,distinctComViewName);
    }
    i++;
  }
  dropItemTables(connection,BrowseIndex.getItemBrowseIndex());
  dropItemTables(connection,BrowseIndex.getWithdrawnBrowseIndex());
  dropItemTables(connection,BrowseIndex.getPrivateBrowseIndex());
  if (DatabaseUtils.tableExists(connection,"String_Node_Str",false)) {
    dropTable(connection,"String_Node_Str");
    dropSequence(connection,"String_Node_Str");
  }
  if (DatabaseUtils.tableExists(connection,"String_Node_Str",false)) {
    dropTable(connection,"String_Node_Str");
  }
  if (DatabaseUtils.tableExists(connection,"String_Node_Str",false)) {
    dropTable(connection,"String_Node_Str");
  }
}

Fixed version (ground truth):
/** 
 * Delete all the existing DBMS browse tables. The DBMS browse system has been replaced by Discovery / Solr. <P> NOTE: This method was based on the "clearDatabase()" method of the old DSpace 5.x `IndexBrowse` class. As such, it is essentially performing the same as the old "./dspace index-db-browse -f -d" command. But, it also removes old, obsolete item_count tables and communities2item table
 * @param connection Database Connection
 * @throws BrowseException
 */
private void removeDBMSBrowseTables(Connection connection) throws BrowseException {
  int i=1;
  int countTablesNotFound=0;
  while (countTablesNotFound < 3) {
    String tableName=BrowseIndex.getTableName(i,false,false,false,false);
    String distinctTableName=BrowseIndex.getTableName(i,false,false,true,false);
    String distinctMapName=BrowseIndex.getTableName(i,false,false,false,true);
    String sequence=BrowseIndex.getSequenceName(i,false,false);
    String mapSequence=BrowseIndex.getSequenceName(i,false,true);
    String distinctSequence=BrowseIndex.getSequenceName(i,true,false);
    String colViewName=BrowseIndex.getTableName(i,false,true,false,false);
    String comViewName=BrowseIndex.getTableName(i,true,false,false,false);
    String distinctColViewName=BrowseIndex.getTableName(i,false,true,false,true);
    String distinctComViewName=BrowseIndex.getTableName(i,true,false,false,true);
    if (DatabaseUtils.tableExists(connection,tableName,false)) {
      dropTable(connection,tableName);
      dropSequence(connection,sequence);
      dropView(connection,colViewName);
      dropView(connection,comViewName);
    }
    if (DatabaseUtils.tableExists(connection,distinctTableName,false)) {
      dropTable(connection,distinctTableName);
      dropTable(connection,distinctMapName);
      dropSequence(connection,distinctSequence);
      dropSequence(connection,mapSequence);
      dropView(connection,distinctColViewName);
      dropView(connection,distinctComViewName);
    }
 else {
      countTablesNotFound++;
    }
    i++;
  }
  dropItemTables(connection,BrowseIndex.getItemBrowseIndex());
  dropItemTables(connection,BrowseIndex.getWithdrawnBrowseIndex());
  dropItemTables(connection,BrowseIndex.getPrivateBrowseIndex());
  if (DatabaseUtils.tableExists(connection,"String_Node_Str",false)) {
    dropTable(connection,"String_Node_Str");
    dropSequence(connection,"String_Node_Str");
  }
  if (DatabaseUtils.tableExists(connection,"String_Node_Str",false)) {
    dropTable(connection,"String_Node_Str");
  }
  if (DatabaseUtils.tableExists(connection,"String_Node_Str",false)) {
    dropTable(connection,"String_Node_Str");
  }
}