src/main/java/com/aliyun/oss/internal/OSSObjectOperation.java [1380:1403]:
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        if (request.getContentType() != null && !request.getContentType().trim().equals("")) {
            requestMessage.addHeader(HttpHeaders.CONTENT_TYPE, request.getContentType());
        }
        if (request.getContentMD5() != null && !request.getContentMD5().trim().equals("")) {
            requestMessage.addHeader(HttpHeaders.CONTENT_MD5, request.getContentMD5());
        }
        for (Map.Entry<String, String> h : request.getUserMetadata().entrySet()) {
            requestMessage.addHeader(OSSHeaders.OSS_USER_METADATA_PREFIX + h.getKey(), h.getValue());
        }
        Map<String, String> responseHeaderParams = new HashMap<String, String>();
        populateResponseHeaderParameters(responseHeaderParams, request.getResponseHeaders());
        populateTrafficLimitParams(responseHeaderParams, request.getTrafficLimit());
        if (responseHeaderParams.size() > 0) {
            requestMessage.setParameters(responseHeaderParams);
        }

        if (request.getQueryParameter() != null && request.getQueryParameter().size() > 0) {
            for (Map.Entry<String, String> entry : request.getQueryParameter().entrySet()) {
                requestMessage.addParameter(entry.getKey(), entry.getValue());
            }
        }

        if (request.getProcess() != null && !request.getProcess().trim().equals("")) {
            requestMessage.addParameter(RequestParameters.SUBRESOURCE_PROCESS, request.getProcess());
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src/main/java/com/aliyun/oss/internal/SignUtils.java [143:167]:
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        if (request.getContentType() != null && !request.getContentType().trim().equals("")) {
            requestMessage.addHeader(HttpHeaders.CONTENT_TYPE, request.getContentType());
        }
        if (request.getContentMD5() != null && !request.getContentMD5().trim().equals("")) {
            requestMessage.addHeader(HttpHeaders.CONTENT_MD5, request.getContentMD5());
        }
        for (Map.Entry<String, String> h : request.getUserMetadata().entrySet()) {
            requestMessage.addHeader(OSSHeaders.OSS_USER_METADATA_PREFIX + h.getKey(), h.getValue());
        }

        Map<String, String> responseHeaderParams = new HashMap<String, String>();
        populateResponseHeaderParameters(responseHeaderParams, request.getResponseHeaders());
        populateTrafficLimitParams(responseHeaderParams, request.getTrafficLimit());
        if (responseHeaderParams.size() > 0) {
            requestMessage.setParameters(responseHeaderParams);
        }

        if (request.getQueryParameter() != null && request.getQueryParameter().size() > 0) {
            for (Map.Entry<String, String> entry : request.getQueryParameter().entrySet()) {
                requestMessage.addParameter(entry.getKey(), entry.getValue());
            }
        }

        if (request.getProcess() != null && !request.getProcess().trim().equals("")) {
            requestMessage.addParameter(RequestParameters.SUBRESOURCE_PROCESS, request.getProcess());
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