hugegraph-spark-connector/src/main/java/org/apache/hugegraph/spark/connector/utils/DataTypeUtils.java [122:142]:
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    private static Boolean parseBoolean(String key, Object rawValue) {
        if (rawValue instanceof Boolean) {
            return (Boolean) rawValue;
        }
        if (rawValue instanceof String) {
            String value = ((String) rawValue).toLowerCase();
            if (ACCEPTABLE_TRUE.contains(value)) {
                return true;
            } else if (ACCEPTABLE_FALSE.contains(value)) {
                return false;
            } else {
                throw new IllegalArgumentException(String.format(
                        "Failed to convert '%s'(key='%s') to Boolean, " +
                        "the acceptable boolean strings are %s or %s",
                        key, rawValue, ACCEPTABLE_TRUE, ACCEPTABLE_FALSE));
            }
        }
        throw new IllegalArgumentException(String.format("Failed to convert value(key='%s') " +
                                                         "'%s'(%s) to Boolean", key, rawValue,
                                                         rawValue.getClass()));
    }
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hugegraph-loader/src/main/java/org/apache/hugegraph/loader/util/DataTypeUtil.java [240:260]:
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    private static Boolean parseBoolean(String key, Object rawValue) {
        if (rawValue instanceof Boolean) {
            return (Boolean) rawValue;
        }
        if (rawValue instanceof String) {
            String value = ((String) rawValue).toLowerCase();
            if (ACCEPTABLE_TRUE.contains(value)) {
                return true;
            } else if (ACCEPTABLE_FALSE.contains(value)) {
                return false;
            } else {
                throw new IllegalArgumentException(String.format(
                        "Failed to convert '%s'(key='%s') to Boolean, " +
                        "the acceptable boolean strings are %s or %s",
                        key, rawValue, ACCEPTABLE_TRUE, ACCEPTABLE_FALSE));
            }
        }
        throw new IllegalArgumentException(String.format("Failed to convert value(key='%s') " +
                                                         "'%s'(%s) to Boolean", key, rawValue,
                                                         rawValue.getClass()));
    }
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