Program: 19568
Project: 19568
Buggy source:
/** 
 * Execute the SQL statement.
 * @param sql the SQL statement to execute
 * @throws SQLException on SQL problems
 * @throws ConversionFailedException 
 * @throws NoConversionAvailableException 
 * @throws BusException 
 * @throws ClassNotFoundException 
 */
public void execute(String sql) throws SQLException, NoConversionAvailableException, ConversionFailedException, BusException, ClassNotFoundException {
  logger.info("String_Node_Str" + sql);
  ++executedSQLCount;
  if (callable) {
    statement=connection.prepareCall(sql);
  }
 else {
    statement=connection.prepareStatement(sql);
  }
  statement.setEscapeProcessing(escapeProcessing);
  ParameterMetaData paramMetaData=statement.getParameterMetaData();
  ArooaConverter converter=session.getTools().getArooaConverter();
  ArooaDescriptor descriptor=session.getArooaDescriptor();
  int paramCount=paramMetaData.getParameterCount();
  if ((parameters == null ? 0 : parameters.size()) < paramCount) {
    throw new IllegalStateException("String_Node_Str" + paramCount);
  }
  for (int i=1; i <= paramCount; ++i) {
    int mode=paramMetaData.getParameterMode(i);
    if (mode == ParameterMetaData.parameterModeIn || mode == ParameterMetaData.parameterModeInOut) {
      ArooaValue value=parameters.get(i - 1).getValue();
      String className=paramMetaData.getParameterClassName(i);
      Class<?> required=descriptor.getClassResolver().findClass(className);
      Object converted=converter.convert(value,required);
      logger.info("String_Node_Str" + i + "String_Node_Str"+ converted+ "String_Node_Str");
      if (converted == null) {
        statement.setNull(i,paramMetaData.getParameterType(i));
      }
 else {
        statement.setObject(i,converted);
      }
    }
 else {
      logger.info("String_Node_Str" + i + "String_Node_Str");
      ((CallableStatement)statement).registerOutParameter(i,paramMetaData.getParameterType(i));
    }
  }
  try {
    statement.execute();
    SQLWarning warnings=statement.getWarnings();
    while (warnings != null) {
      logger.warn(warnings.getMessage());
      warnings=warnings.getNextWarning();
    }
    if (statement instanceof CallableStatement) {
      CallableStatement callable=(CallableStatement)statement;
      for (int i=1; i <= paramCount; ++i) {
        int mode=paramMetaData.getParameterMode(i);
        if (mode == ParameterMetaData.parameterModeOut || mode == ParameterMetaData.parameterModeInOut) {
          Object out=callable.getObject(i);
          logger.info("String_Node_Str" + i + "String_Node_Str"+ out+ "String_Node_Str");
          ArooaValue value=converter.convert(out,ArooaValue.class);
          parameters.get(i - 1).setValue(value);
        }
      }
    }
    ResultSet results=statement.getResultSet();
    if (results != null) {
      PropertyAccessor accessor=session.getTools().getPropertyAccessor().accessorWithConversions(session.getTools().getArooaConverter());
      ResultSetBeanFactory beanFactory=new ResultSetBeanFactory(results,accessor,dialect == null ? new BasicGenericDialect() : dialect);
      List<?> rows=beanFactory.all();
      logger.info("String_Node_Str" + rows.size() + "String_Node_Str");
      resultProcessor.accept(rows);
    }
 else {
      int updateCount=statement.getUpdateCount();
      logger.info("String_Node_Str" + updateCount + "String_Node_Str");
      resultProcessor.accept(new UpdateCount(updateCount));
    }
    ++successfulSQLCount;
  }
  finally {
    statement.close();
    statement=null;
  }
}

Fixed version (ground truth):
/** 
 * Execute the SQL statement.
 * @param sql the SQL statement to execute
 * @throws SQLException on SQL problems
 * @throws ConversionFailedException 
 * @throws NoConversionAvailableException 
 * @throws BusException 
 * @throws ClassNotFoundException 
 */
public void execute(String sql) throws SQLException, ArooaConversionException, BusException, ClassNotFoundException {
  logger.info("String_Node_Str" + sql);
  ++executedSQLCount;
  if (callable) {
    statement=connection.prepareCall(sql);
  }
 else {
    statement=connection.prepareStatement(sql);
  }
  statement.setEscapeProcessing(escapeProcessing);
  ParameterHandler parameterHandler=getParameterHandler();
  parameterHandler.preExecute();
  try {
    statement.execute();
    SQLWarning warnings=statement.getWarnings();
    while (warnings != null) {
      logger.warn(warnings.getMessage());
      warnings=warnings.getNextWarning();
    }
    parameterHandler.postExecute();
    ResultSet results=statement.getResultSet();
    if (results != null) {
      PropertyAccessor accessor=session.getTools().getPropertyAccessor().accessorWithConversions(session.getTools().getArooaConverter());
      ResultSetBeanFactory beanFactory=new ResultSetBeanFactory(results,accessor,dialect == null ? new BasicGenericDialect() : dialect);
      List<?> rows=beanFactory.all();
      logger.info("String_Node_Str" + rows.size() + "String_Node_Str");
      resultProcessor.accept(rows);
    }
 else {
      int updateCount=statement.getUpdateCount();
      logger.info("String_Node_Str" + updateCount + "String_Node_Str");
      resultProcessor.accept(new UpdateCount(updateCount));
    }
    ++successfulSQLCount;
  }
  finally {
    statement.close();
    statement=null;
  }
}