services/neptune/src/main/java/software/amazon/awssdk/services/neptune/internal/RdsPresignInterceptor.java [144:158]:
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    private PresignableRequest toPresignableRequest(SdkHttpRequest request, Context.ModifyHttpRequest context) {
        SdkRequest originalRequest = context.request();
        if (!requestClassToPreSign.isInstance(originalRequest)) {
            return null;
        }
        if (request.firstMatchingRawQueryParameter(PARAM_PRESIGNED_URL).isPresent()) {
            return null;
        }
        PresignableRequest presignableRequest = adaptRequest(requestClassToPreSign.cast(originalRequest));
        String sourceRegion = presignableRequest.getSourceRegion();
        if (sourceRegion == null) {
            return null;
        }
        return presignableRequest;
    }
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services/docdb/src/main/java/software/amazon/awssdk/services/docdb/internal/RdsPresignInterceptor.java [143:157]:
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    private PresignableRequest toPresignableRequest(SdkHttpRequest request, Context.ModifyHttpRequest context) {
        SdkRequest originalRequest = context.request();
        if (!requestClassToPreSign.isInstance(originalRequest)) {
            return null;
        }
        if (request.firstMatchingRawQueryParameter(PARAM_PRESIGNED_URL).isPresent()) {
            return null;
        }
        PresignableRequest presignableRequest = adaptRequest(requestClassToPreSign.cast(originalRequest));
        String sourceRegion = presignableRequest.getSourceRegion();
        if (sourceRegion == null) {
            return null;
        }
        return presignableRequest;
    }
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services/rds/src/main/java/software/amazon/awssdk/services/rds/internal/RdsPresignInterceptor.java [143:158]:
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    private PresignableRequest toPresignableRequest(SdkHttpRequest request, Context.ModifyHttpRequest context) {
        SdkRequest originalRequest = context.request();
        if (!requestClassToPreSign.isInstance(originalRequest)) {
            return null;
        }
        if (request.firstMatchingRawQueryParameter(PARAM_PRESIGNED_URL).isPresent()) {
            return null;
        }

        PresignableRequest presignableRequest = adaptRequest(requestClassToPreSign.cast(originalRequest));
        String sourceRegion = presignableRequest.getSourceRegion();
        if (sourceRegion == null) {
            return null;
        }
        return presignableRequest;
    }
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