Here you can find the source of createIconFromStream(InputStream input)
public static ImageIcon createIconFromStream(InputStream input) throws IOException
//package com.java2s; /*/*from w ww . j av a2 s. c o m*/ JPC: An x86 PC Hardware Emulator for a pure Java Virtual Machine Release Version 2.4 A project from the Physics Dept, The University of Oxford Copyright (C) 2007-2010 The University of Oxford This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Details (including contact information) can be found at: jpc.sourceforge.net or the developer website sourceforge.net/projects/jpc/ Conceived and Developed by: Rhys Newman, Ian Preston, Chris Dennis End of licence header */ import javax.swing.*; import java.io.*; public class Main { public static ImageIcon createIconFromStream(InputStream input, String description) throws IOException { try { ByteArrayOutputStream bout = new ByteArrayOutputStream(); while (true) { int ch = input.read(); if (ch < 0) break; bout.write((byte) ch); } return new ImageIcon(bout.toByteArray(), description); } finally { input.close(); } } public static ImageIcon createIconFromStream(InputStream input) throws IOException { return createIconFromStream(input, ""); } }