How to convert an InputStream to a String and Back

There are four methods listed below to convert InputStream to String and String to an InputStream.

	package com.bluelotussoftware.io;
	import java.io.ByteArrayInputStream;
	import java.io.DataInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.UnsupportedEncodingException;
	/**
	*
	* @author John Yeary <jyeary@bluelotussoftware.com>
	* @version 2.0.0
	*/
	public class IOUtils {
	/**
	* This reads an {@link InputStream} and converts it to a {@link String}.
	*
	* @param is The stream to convert.
	* @return The converted {@link InputStream} to text.
	* @since 1.0.0
	*/
	public String parseISToString(InputStream is) {
	DataInputStream din = new DataInputStream(is);
	StringBuilder sb = new StringBuilder();
	try {
	String line = null;
	while ((line = din.readLine()) != null) {
	sb.append(line).append("\n");
	}
	} catch (IOException ex) {
	ex.printStackTrace(System.err);
	} finally {
	try {
	is.close();
	} catch (IOException ex) {
	}
	}
	return sb.toString();
	}
	/**
	* Converts a {@link String} into an {@link InputStream}
	*
	* @param text The text to convert to an {@link InputStream}.
	* @return An {@link InputStream} from the text value provided.
	* @since 1.0.0
	*/
	public InputStream parseStringToIS(String text) {
	if (text == null) {
	return null;
	}
	text = text.trim();
	java.io.InputStream in = null;
	try {
	in = new ByteArrayInputStream(text.getBytes("UTF-8"));
	} catch (UnsupportedEncodingException ex) {
	ex.printStackTrace(System.err);
	}
	return in;
	}
	/**
	* This reads an {@link InputStream} and converts it to a {@link String}.
	*
	* @param is The stream to convert.
	* @return The converted {@link InputStream} to UTF-8 text.
	* @since 2.0.0
	*/
	public String toString(final InputStream is) {
	StringBuilder sb = new StringBuilder();
	try (DataInputStream din = new DataInputStream(is)) {
	String line;
	while ((line = din.readUTF()) != null) {
	sb.append(line);
	}
	} catch (IOException ex) {
	ex.printStackTrace(System.err);
	}
	return sb.toString();
	}
	/**
	* Converts a {@link String} into an {@link InputStream}
	*
	* @param text The text to convert to an {@link InputStream}.
	* @return A UTF-8 encoded {@link InputStream} from the text value provided.
	* @since 2.0.0
	*/
	public InputStream toInputStream(final String text) {
	if (text == null || text.isEmpty()) {
	return null;
	}
	try (InputStream in = new ByteArrayInputStream(text.getBytes("UTF-8"))) {
	return in;
	} catch (UnsupportedEncodingException ex) {
	ex.printStackTrace(System.err);
	} catch (IOException ex) {
	ex.printStackTrace(System.err);
	}
	return null;
	}
	}

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