code: public Certificate getCertificate(String thumbprintAlgorithm, String thumbprint, DetailLevel detailLevel, Iterable<BatchClientBehavior> additionalBehaviors) throws BatchErrorException, IOException {
          CertificateGetOptions getCertificateOptions = new CertificateGetOptions();
          BehaviorManager bhMgr = new BehaviorManager(this.customBehaviors(), additionalBehaviors);
          bhMgr.appendDetailLevelToPerCallBehaviors(detailLevel);
          bhMgr.applyRequestBehaviors(getCertificateOptions);
  
          return this.parentBatchClient.protocolLayer().certificates().get(thumbprintAlgorithm, thumbprint, getCertificateOptions);
      }
docs: Gets the specified {@link Certificate}.
  
  @param thumbprintAlgorithm the algorithm used to derive the thumbprint parameter. This must be sha1.
  @param thumbprint the thumbprint of the certificate to get.
  @param detailLevel A {@link DetailLevel} used for controlling which properties are retrieved from the service.
  @param additionalBehaviors A collection of {@link BatchClientBehavior} instances that are applied to the Batch service request.
  @return A {@link Certificate} containing information about the specified certificate in the Azure Batch account.
  @throws BatchErrorException Exception thrown when an error response is received from the Batch service.
  @throws IOException Exception thrown when there is an error in serialization/deserialization of data sent to/received from the Batch service.