Program: 48175
Project: 48175
Buggy source:
/** 
 * The DIDAuthenticate function can be used to execute an authentication protocol using a DID addressed by DIDName. See BSI-TR-03112-4, version 1.1.2, section 3.6.6.
 * @param request DIDAuthenticate
 * @return DIDAuthenticateResponse
 */
@Override public DIDAuthenticateResponse didAuthenticate(DIDAuthenticate request){
  DIDAuthenticateResponse response=WSHelper.makeResponse(DIDAuthenticateResponse.class,WSHelper.makeResultOK());
  try {
    ConnectionHandleType connectionHandle=SALUtils.getConnectionHandle(request);
    DIDAuthenticationDataType didAuthenticationData=request.getAuthenticationProtocolData();
    Assert.assertIncorrectParameter(didAuthenticationData,"String_Node_Str");
    String protocolURI=request.getAuthenticationProtocolData().getProtocol();
    if (protocolURI == null) {
      logger.warn("String_Node_Str");
      protocolURI=ECardConstants.Protocol.EAC_GENERIC;
    }
 else     if (protocolURI.equals("String_Node_Str")) {
      logger.warn("String_Node_Str");
      protocolURI=ECardConstants.Protocol.EAC_GENERIC;
    }
    Protocol protocol=getProtocol(connectionHandle,protocolURI);
    if (protocol.hasNextStep(FunctionType.DIDAuthenticate)) {
      response=protocol.didAuthenticate(request);
      removeFinishedProtocol(connectionHandle,protocolURI,protocol);
    }
 else {
      throw new InappropriateProtocolForActionException("String_Node_Str",protocol.toString());
    }
  }
 catch (  ECardException e) {
    response.setResult(e.getResult());
  }
catch (  Exception e) {
    logger.error(e.getMessage(),e);
    response.setResult(WSHelper.makeResult(e));
  }
  return response;
}

Fixed version (ground truth):
/** 
 * The DIDAuthenticate function can be used to execute an authentication protocol using a DID addressed by DIDName. See BSI-TR-03112-4, version 1.1.2, section 3.6.6.
 * @param request DIDAuthenticate
 * @return DIDAuthenticateResponse
 */
@Override public DIDAuthenticateResponse didAuthenticate(DIDAuthenticate request){
  DIDAuthenticateResponse response=WSHelper.makeResponse(DIDAuthenticateResponse.class,WSHelper.makeResultOK());
  try {
    ConnectionHandleType connectionHandle=SALUtils.getConnectionHandle(request);
    DIDAuthenticationDataType didAuthenticationData=request.getAuthenticationProtocolData();
    Assert.assertIncorrectParameter(didAuthenticationData,"String_Node_Str");
    String protocolURI=didAuthenticationData.getProtocol();
    if (protocolURI == null) {
      logger.warn("String_Node_Str");
      protocolURI=ECardConstants.Protocol.EAC_GENERIC;
    }
 else     if (protocolURI.equals("String_Node_Str")) {
      logger.warn("String_Node_Str");
      protocolURI=ECardConstants.Protocol.EAC_GENERIC;
    }
    didAuthenticationData.setProtocol(protocolURI);
    Protocol protocol=getProtocol(connectionHandle,protocolURI);
    if (protocol.hasNextStep(FunctionType.DIDAuthenticate)) {
      response=protocol.didAuthenticate(request);
      removeFinishedProtocol(connectionHandle,protocolURI,protocol);
    }
 else {
      throw new InappropriateProtocolForActionException("String_Node_Str",protocol.toString());
    }
  }
 catch (  ECardException e) {
    response.setResult(e.getResult());
  }
catch (  Exception e) {
    logger.error(e.getMessage(),e);
    response.setResult(WSHelper.makeResult(e));
  }
  return response;
}