StringUtils.java
19e88dbd7dbbdowngrade_java6

StringUtils.java
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			package utils;

			import java.util.List;

			public class StringUtils {

			public static <T> String join(String separator, List<T> list) {
			StringBuilder sb = new StringBuilder();

			boolean first = true;
			for (T val : list) {
			if (first) {
			first = false;
			} else {
			sb.append(separator);
			}

			sb.append(val);
			}

			return sb.toString();
			}

			}