package com.lightstep.tracer.shared;
import java.util.Random;
class RandomUtil {
<BUG>static String generateGUID() {

long guid = random.get().nextLong();

return Long.toHexString(guid);</BUG>
}

package com.lightstep.tracer.shared;
import java.util.Random;
class RandomUtil {
static long generateGUID() {
return random.get().nextLong();
}
