Program: 48137
Project: 48137
Buggy source:
/** 
 * The CardApplicationConnect function establishes an unauthenticated connection between the client application and the card application. See BSI-TR-03112-4, version 1.1.2, section 3.2.1.
 * @param request CardApplicationConnect
 * @return CardApplicationConnectResponse
 */
@Override public CardApplicationConnectResponse cardApplicationConnect(CardApplicationConnect request){
  CardApplicationConnectResponse response=WSHelper.makeResponse(CardApplicationConnectResponse.class,WSHelper.makeResultOK());
  try {
    CardApplicationPathType cardAppPath=request.getCardApplicationPath();
    Assert.assertIncorrectParameter(cardAppPath,"String_Node_Str");
    Set<CardStateEntry> cardStateEntrySet=states.getMatchingEntries(cardAppPath,false);
    Assert.assertIncorrectParameter(cardStateEntrySet,"String_Node_Str");
    CardStateEntry cardStateEntry=cardStateEntrySet.iterator().next();
    byte[] applicationID=cardAppPath.getCardApplication();
    if (applicationID == null) {
      if (cardStateEntry.getImplicitlySelectedApplicationIdentifier() != null) {
        applicationID=cardStateEntry.getImplicitlySelectedApplicationIdentifier();
      }
 else {
        applicationID=MF;
      }
    }
    Assert.securityConditionApplication(cardStateEntry,applicationID,ConnectionServiceActionName.CARD_APPLICATION_CONNECT);
    CardApplicationPathType cardApplicationPath=cardStateEntry.pathCopy();
    Connect connect=new Connect();
    connect.setContextHandle(cardApplicationPath.getContextHandle());
    connect.setIFDName(cardApplicationPath.getIFDName());
    connect.setSlot(cardApplicationPath.getSlotIndex());
    ConnectResponse connectResponse=(ConnectResponse)env.getDispatcher().deliver(connect);
    WSHelper.checkResult(connectResponse);
    CardCommandAPDU select;
    if (applicationID.length == 2) {
      select=new Select.File(applicationID);
    }
 else {
      select=new Select.Application(applicationID);
    }
    select.transmit(env.getDispatcher(),connectResponse.getSlotHandle());
    cardStateEntry.setCurrentCardApplication(applicationID);
    cardStateEntry.setSlotHandle(connectResponse.getSlotHandle());
    cardStateEntry.unsetFCPOfSelectedEF();
    states.addEntry(cardStateEntry);
    response.setConnectionHandle(cardStateEntry.handleCopy());
    response.getConnectionHandle().setCardApplication(applicationID);
  }
 catch (  ECardException e) {
    response.setResult(e.getResult());
  }
catch (  DispatcherException e) {
    logger.error(e.getMessage(),e);
    response.setResult(WSHelper.makeResult(e));
  }
catch (  InvocationTargetException e) {
    logger.error(e.getMessage(),e);
    response.setResult(WSHelper.makeResult(e));
  }
  return response;
}

Fixed version (ground truth):
/** 
 * The CardApplicationConnect function establishes an unauthenticated connection between the client application and the card application. See BSI-TR-03112-4, version 1.1.2, section 3.2.1.
 * @param request CardApplicationConnect
 * @return CardApplicationConnectResponse
 */
@Override public CardApplicationConnectResponse cardApplicationConnect(CardApplicationConnect request){
  CardApplicationConnectResponse response=WSHelper.makeResponse(CardApplicationConnectResponse.class,WSHelper.makeResultOK());
  try {
    CardApplicationPathType cardAppPath=request.getCardApplicationPath();
    Assert.assertIncorrectParameter(cardAppPath,"String_Node_Str");
    Set<CardStateEntry> cardStateEntrySet=states.getMatchingEntries(cardAppPath,false);
    Assert.assertIncorrectParameter(cardStateEntrySet,"String_Node_Str");
    CardStateEntry cardStateEntry=cardStateEntrySet.iterator().next();
    byte[] applicationID=cardAppPath.getCardApplication();
    if (applicationID == null) {
      if (cardStateEntry.getImplicitlySelectedApplicationIdentifier() != null) {
        applicationID=cardStateEntry.getImplicitlySelectedApplicationIdentifier();
      }
 else {
        applicationID=MF;
      }
    }
    Assert.securityConditionApplication(cardStateEntry,applicationID,ConnectionServiceActionName.CARD_APPLICATION_CONNECT);
    CardApplicationPathType cardApplicationPath=cardStateEntry.pathCopy();
    Connect connect=new Connect();
    connect.setContextHandle(cardApplicationPath.getContextHandle());
    connect.setIFDName(cardApplicationPath.getIFDName());
    connect.setSlot(cardApplicationPath.getSlotIndex());
    ConnectResponse connectResponse=(ConnectResponse)env.getDispatcher().deliver(connect);
    WSHelper.checkResult(connectResponse);
    CardCommandAPDU select;
    if (applicationID.length == 2) {
      select=new Select.File(applicationID);
    }
 else {
      select=new Select.Application(applicationID);
    }
    select.transmit(env.getDispatcher(),connectResponse.getSlotHandle());
    cardStateEntry.setCurrentCardApplication(applicationID);
    cardStateEntry.setSlotHandle(connectResponse.getSlotHandle());
    cardStateEntry.unsetFCPOfSelectedEF();
    states.addEntry(cardStateEntry);
    response.setConnectionHandle(cardStateEntry.handleCopy());
    response.getConnectionHandle().setCardApplication(applicationID);
  }
 catch (  ECardException e) {
    response.setResult(e.getResult());
  }
catch (  DispatcherException|InvocationTargetException e) {
    logger.error(e.getMessage(),e);
    response.setResult(WSHelper.makeResult(e));
  }
  return response;
}