lib/client-core/src/main/java/org/apache/olingo/client/core/communication/request/invoke/ODataInvokeRequestImpl.java [77:105]:
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    public T getBody() {
      if (invokeResult == null) {
        try {
          if (ClientNoContent.class.isAssignableFrom(reference)) {
            invokeResult = reference.cast(new ClientNoContent());
          } else {
            // avoid getContent() twice:IllegalStateException: Content has been consumed
            final InputStream responseStream = this.payload == null ? res.getEntity().getContent() : this.payload;
            if (ClientEntitySet.class.isAssignableFrom(reference)) {
              invokeResult = reference.cast(odataClient.getReader().readEntitySet(responseStream,
                  ContentType.parse(getContentType())));
            } else if (ClientEntity.class.isAssignableFrom(reference)) {
              invokeResult = reference.cast(odataClient.getReader().readEntity(responseStream,
                  ContentType.parse(getContentType())));
            } else if (ClientProperty.class.isAssignableFrom(reference)) {
              invokeResult = reference.cast(odataClient.getReader().readProperty(responseStream,
                  ContentType.parse(getContentType())));
            }
          }
        } catch (IOException e) {
          throw new HttpClientException(e);
        } catch (final ODataDeserializerException e) {
          throw new IllegalArgumentException(e);
        } finally {
          this.close();
        }
      }
      return invokeResult;
    }
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lib/client-core/src/main/java/org/apache/olingo/client/core/communication/request/invoke/AbstractODataInvokeRequest.java [192:220]:
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    public T getBody() {
      if (invokeResult == null) {
        try {
          if (ClientNoContent.class.isAssignableFrom(reference)) {
            invokeResult = reference.cast(new ClientNoContent());
          } else {
            // avoid getContent() twice:IllegalStateException: Content has been consumed
            final InputStream responseStream = this.payload == null ? res.getEntity().getContent() : this.payload;
            if (ClientEntitySet.class.isAssignableFrom(reference)) {
              invokeResult = reference.cast(odataClient.getReader().readEntitySet(responseStream,
                  ContentType.parse(getContentType())));
            } else if (ClientEntity.class.isAssignableFrom(reference)) {
              invokeResult = reference.cast(odataClient.getReader().readEntity(responseStream,
                  ContentType.parse(getContentType())));
            } else if (ClientProperty.class.isAssignableFrom(reference)) {
              invokeResult = reference.cast(odataClient.getReader().readProperty(responseStream,
                  ContentType.parse(getContentType())));
            }
          }
        } catch (IOException e) {
          throw new HttpClientException(e);
        } catch (final ODataDeserializerException e) {
          throw new IllegalArgumentException(e);
        } finally {
          this.close();
        }
      }
      return invokeResult;
    }
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