Program: 84077
Project: 84077
Buggy source:
public static Database createDatabaseObject(ClassLoader classLoader,String url,String username,String password,String driver,String defaultSchemaName,String databaseClass) throws JDBCException {
  if (driver == null) {
    driver=DatabaseFactory.getInstance().findDefaultDriver(url);
  }
  try {
    if (url.startsWith("String_Node_Str")) {
      try {
        return (Database)Class.forName(HibernateDatabase.class.getName(),true,classLoader).getConstructor(String.class).newInstance(url.substring("String_Node_Str".length()));
      }
 catch (      NoClassDefFoundError e) {
        throw new MigrationFailedException(null,"String_Node_Str" + e.getMessage() + "String_Node_Str");
      }
    }
    Driver driverObject;
    DatabaseFactory databaseFactory=DatabaseFactory.getInstance();
    if (databaseClass != null) {
      databaseFactory.addDatabaseImplementation((Database)Class.forName(databaseClass,true,classLoader).newInstance());
    }
    try {
      if (driver == null) {
        driver=databaseFactory.findDefaultDriver(url);
      }
      if (driver == null) {
        throw new RuntimeException("String_Node_Str" + url + "String_Node_Str");
      }
      driverObject=(Driver)Class.forName(driver,true,classLoader).newInstance();
    }
 catch (    Exception e) {
      throw new RuntimeException("String_Node_Str" + e.getMessage());
    }
    Properties info=new Properties();
    if (username != null) {
      info.put("String_Node_Str",username);
    }
    if (password != null) {
      info.put("String_Node_Str",password);
    }
    Connection connection=driverObject.connect(url,info);
    if (connection == null) {
      throw new JDBCException("String_Node_Str" + url + "String_Node_Str"+ driver.getClass().getName()+ "String_Node_Str");
    }
    Database database=databaseFactory.findCorrectDatabaseImplementation(connection);
    database.setDefaultSchemaName(StringUtils.trimToNull(defaultSchemaName));
    return database;
  }
 catch (  Exception e) {
    throw new JDBCException(e);
  }
}

Fixed version (ground truth):
public static Database createDatabaseObject(ClassLoader classLoader,String url,String username,String password,String driver,String defaultSchemaName,String databaseClass) throws JDBCException {
  if (driver == null) {
    driver=DatabaseFactory.getInstance().findDefaultDriver(url);
  }
  try {
    if (url.startsWith("String_Node_Str")) {
      try {
        return createHibernateDatabase(classLoader,url);
      }
 catch (      NoClassDefFoundError e) {
        try {
          return createHibernateDatabase(Thread.currentThread().getContextClassLoader(),url);
        }
 catch (        NoClassDefFoundError e1) {
          throw new MigrationFailedException(null,"String_Node_Str" + e1.getMessage() + "String_Node_Str");
        }
      }
    }
    Driver driverObject;
    DatabaseFactory databaseFactory=DatabaseFactory.getInstance();
    if (databaseClass != null) {
      databaseFactory.addDatabaseImplementation((Database)Class.forName(databaseClass,true,classLoader).newInstance());
    }
    try {
      if (driver == null) {
        driver=databaseFactory.findDefaultDriver(url);
      }
      if (driver == null) {
        throw new RuntimeException("String_Node_Str" + url + "String_Node_Str");
      }
      driverObject=(Driver)Class.forName(driver,true,classLoader).newInstance();
    }
 catch (    Exception e) {
      throw new RuntimeException("String_Node_Str" + e.getMessage());
    }
    Properties info=new Properties();
    if (username != null) {
      info.put("String_Node_Str",username);
    }
    if (password != null) {
      info.put("String_Node_Str",password);
    }
    Connection connection=driverObject.connect(url,info);
    if (connection == null) {
      throw new JDBCException("String_Node_Str" + url + "String_Node_Str"+ driver.getClass().getName()+ "String_Node_Str");
    }
    Database database=databaseFactory.findCorrectDatabaseImplementation(connection);
    database.setDefaultSchemaName(StringUtils.trimToNull(defaultSchemaName));
    return database;
  }
 catch (  Exception e) {
    throw new JDBCException(e);
  }
}