Program: 8526
Project: 8526
Buggy source:
private ServiceMethodDefinition buildServiceMethodDefinition(ServiceMethodBean serviceMethodBean,ServiceMethod serviceMethod){
  ServiceMethodDefinition definition=new ServiceMethodDefinition();
  definition.setMethodGroup(serviceMethodBean.group());
  definition.setMethodGroupTitle(serviceMethodBean.groupTitle());
  definition.setTags(serviceMethodBean.tags());
  definition.setTimeout(serviceMethodBean.timeout());
  definition.setIgnoreSign(IgnoreSignType.isIgnoreSign(serviceMethodBean.ignoreSign()));
  definition.setVersion(serviceMethodBean.version());
  definition.setNeedInSession(NeedInSessionType.isNeedInSession(serviceMethodBean.needInSession()));
  definition.setHttpAction(serviceMethodBean.httpAction());
  definition.setObsoleted(ObsoletedType.isObsoleted(serviceMethodBean.obsoleted()));
  definition.setMethod(serviceMethod.method());
  definition.setMethodTitle(serviceMethod.title());
  if (!ServiceMethodDefinition.DEFAULT_GROUP.equals(serviceMethod.group())) {
    definition.setMethodGroup(serviceMethod.group());
  }
  if (!ServiceMethodDefinition.DEFAULT_GROUP_TITLE.equals(serviceMethod.groupTitle())) {
    definition.setMethodGroupTitle(serviceMethod.groupTitle());
  }
  if (serviceMethod.tags() != null && serviceMethod.tags().length > 0) {
    definition.setTags(serviceMethod.tags());
  }
  if (serviceMethod.timeout() != definition.getTimeout()) {
    definition.setTimeout(serviceMethod.timeout());
  }
  if (serviceMethod.ignoreSign() != IgnoreSignType.DEFAULT) {
    definition.setIgnoreSign(IgnoreSignType.isIgnoreSign(serviceMethod.ignoreSign()));
  }
  if (StringUtils.hasText(serviceMethod.version())) {
    definition.setVersion(serviceMethod.version());
  }
  if (serviceMethod.needInSession() != NeedInSessionType.DEFAULT) {
    definition.setNeedInSession(NeedInSessionType.isNeedInSession(serviceMethod.needInSession()));
  }
  if (serviceMethod.obsoleted() != ObsoletedType.DEFAULT) {
    definition.setObsoleted(ObsoletedType.isObsoleted(serviceMethod.obsoleted()));
  }
  if (serviceMethod.httpAction().length > 0) {
    definition.setHttpAction(serviceMethod.httpAction());
  }
  return definition;
}

Fixed version (ground truth):
private ServiceMethodDefinition buildServiceMethodDefinition(ServiceMethodBean serviceMethodBean,ServiceMethod serviceMethod){
  ServiceMethodDefinition definition=new ServiceMethodDefinition();
  definition.setMethodGroup(serviceMethodBean.group());
  definition.setMethodGroupTitle(serviceMethodBean.groupTitle());
  definition.setTags(serviceMethodBean.tags());
  definition.setTimeout(serviceMethodBean.timeout());
  definition.setIgnoreSign(IgnoreSignType.isIgnoreSign(serviceMethodBean.ignoreSign()));
  definition.setVersion(serviceMethodBean.version());
  definition.setNeedInSession(NeedInSessionType.isNeedInSession(serviceMethodBean.needInSession()));
  definition.setHttpAction(serviceMethodBean.httpAction());
  definition.setObsoleted(ObsoletedType.isObsoleted(serviceMethodBean.obsoleted()));
  definition.setMethod(serviceMethod.method());
  definition.setMethodTitle(serviceMethod.title());
  if (!ServiceMethodDefinition.DEFAULT_GROUP.equals(serviceMethod.group())) {
    definition.setMethodGroup(serviceMethod.group());
  }
  if (!ServiceMethodDefinition.DEFAULT_GROUP_TITLE.equals(serviceMethod.groupTitle())) {
    definition.setMethodGroupTitle(serviceMethod.groupTitle());
  }
  if (serviceMethod.tags() != null && serviceMethod.tags().length > 0) {
    definition.setTags(serviceMethod.tags());
  }
  if (serviceMethod.timeout() > 0) {
    definition.setTimeout(serviceMethod.timeout());
  }
  if (serviceMethod.ignoreSign() != IgnoreSignType.DEFAULT) {
    definition.setIgnoreSign(IgnoreSignType.isIgnoreSign(serviceMethod.ignoreSign()));
  }
  if (StringUtils.hasText(serviceMethod.version())) {
    definition.setVersion(serviceMethod.version());
  }
  if (serviceMethod.needInSession() != NeedInSessionType.DEFAULT) {
    definition.setNeedInSession(NeedInSessionType.isNeedInSession(serviceMethod.needInSession()));
  }
  if (serviceMethod.obsoleted() != ObsoletedType.DEFAULT) {
    definition.setObsoleted(ObsoletedType.isObsoleted(serviceMethod.obsoleted()));
  }
  if (serviceMethod.httpAction().length > 0) {
    definition.setHttpAction(serviceMethod.httpAction());
  }
  return definition;
}