Program: 68330
Project: 68330
Buggy source:
@BeforeClass public static void setUp(){
  final String username=System.getProperty(DATABASE_USERNAME_KEY);
  if (username == null) {
    fail("String_Node_Str");
  }
  final String password=System.getProperty(DATABASE_PASSWORD_KEY);
  if (password == null) {
    fail("String_Node_Str");
  }
  final String url=System.getProperty(DATABASE_URL_KEY);
  if (url == null) {
    fail("String_Node_Str");
  }
  final String driver=System.getProperty(DATABASE_DRIVER_KEY);
  if (driver == null) {
    fail("String_Node_Str");
  }
  XRServiceFactory factory=new XRServiceFactory(){
    @Override public XRServiceAdapter buildService(    XRServiceModel xrServiceModel){
      parentClassLoader=this.getClass().getClassLoader();
      xrSchemaStream=new ByteArrayInputStream(RELATIONSHIPS_SCHEMA.getBytes());
      return super.buildService(xrServiceModel);
    }
    @Override public void buildSessions(){
      XMLContext context=new XMLContext(new EclipseLinkObjectPersistenceRuntimeXMLProject());
      XMLUnmarshaller unmarshaller=context.createUnmarshaller();
      Project orProject=(Project)unmarshaller.unmarshal(new StringReader(RELATIONSHIPS_OR_PROJECT));
      DatasourceLogin login=new DatabaseLogin();
      login.setUserName(username);
      login.setPassword(password);
      ((DatabaseLogin)login).setConnectionString(url);
      ((DatabaseLogin)login).setDriverClassName(driver);
      Platform platform=new OraclePlatform();
      login.setDatasourcePlatform(platform);
      ((DatabaseLogin)login).bindAllParameters();
      orProject.setDatasourceLogin(login);
      Project oxProject=(Project)unmarshaller.unmarshal(new StringReader(RELATIONSHIPS_OX_PROJECT));
      xrService.setORSession(orProject.createDatabaseSession());
      xrService.getORSession().dontLogMessages();
      xrService.setXMLContext(new XMLContext(oxProject));
      xrService.setOXSession(xrService.getXMLContext().getSession(0));
    }
  }
;
  XMLContext context=new XMLContext(new DBWSModelProject());
  XMLUnmarshaller unmarshaller=context.createUnmarshaller();
  DBWSModel model=(DBWSModel)unmarshaller.unmarshal(new StringReader(RELATIONSHIPS_DBWS));
  xrService=factory.buildService(model);
}

Fixed version (ground truth):
@BeforeClass public static void setUp(){
  final String username=System.getProperty(DATABASE_USERNAME_KEY);
  if (username == null) {
    fail("String_Node_Str");
  }
  final String password=System.getProperty(DATABASE_PASSWORD_KEY);
  if (password == null) {
    fail("String_Node_Str");
  }
  final String url=System.getProperty(DATABASE_URL_KEY);
  if (url == null) {
    fail("String_Node_Str");
  }
  final String driver=System.getProperty(DATABASE_DRIVER_KEY);
  if (driver == null) {
    fail("String_Node_Str");
  }
  XRServiceFactory factory=new XRServiceFactory(){
    @Override public XRServiceAdapter buildService(    XRServiceModel xrServiceModel){
      parentClassLoader=this.getClass().getClassLoader();
      xrSchemaStream=new ByteArrayInputStream(RELATIONSHIPS_SCHEMA.getBytes());
      return super.buildService(xrServiceModel);
    }
    @Override public void buildSessions(){
      XMLContext context=new XMLContext(new EclipseLinkObjectPersistenceRuntimeXMLProject());
      XMLUnmarshaller unmarshaller=context.createUnmarshaller();
      Project orProject=(Project)unmarshaller.unmarshal(new StringReader(RELATIONSHIPS_OR_PROJECT));
      DatasourceLogin login=new DatabaseLogin();
      login.setUserName(username);
      login.setPassword(password);
      ((DatabaseLogin)login).setConnectionString(url);
      ((DatabaseLogin)login).setDriverClassName(driver);
      Platform platform=new MySQLPlatform();
      login.setDatasourcePlatform(platform);
      ((DatabaseLogin)login).bindAllParameters();
      orProject.setDatasourceLogin(login);
      Project oxProject=(Project)unmarshaller.unmarshal(new StringReader(RELATIONSHIPS_OX_PROJECT));
      xrService.setORSession(orProject.createDatabaseSession());
      xrService.getORSession().dontLogMessages();
      xrService.setXMLContext(new XMLContext(oxProject));
      xrService.setOXSession(xrService.getXMLContext().getSession(0));
    }
  }
;
  XMLContext context=new XMLContext(new DBWSModelProject());
  XMLUnmarshaller unmarshaller=context.createUnmarshaller();
  DBWSModel model=(DBWSModel)unmarshaller.unmarshal(new StringReader(RELATIONSHIPS_DBWS));
  xrService=factory.buildService(model);
}