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With inspiration from other libraries

There is a newer version: 2.12.15

package io.virtdata.libbasics.shared.from_long.to_byte;

import io.virtdata.annotations.Categories;
import io.virtdata.annotations.Category;
import io.virtdata.annotations.DeprecatedFunction;
import io.virtdata.annotations.ThreadSafeMapper;

import java.util.function.LongFunction;

/**
 * Convert the input long value to a byte, with negative values
 * masked away.
 */
@ThreadSafeMapper
@Categories({Category.conversion})
@DeprecatedFunction("This function is being replaced by ToByte() for naming consistency.")
public class LongToByte implements LongFunction {
    @Override
    public Byte apply(long value) {
        return (byte) (value & Byte.MAX_VALUE);
    }
}