Here you can find the source of closeQuietly(InputStream is)
public static void closeQuietly(InputStream is)
//package com.java2s; /*//from ww w .j a v a 2 s . c om * Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute * Copyright [2016-2018] EMBL-European Bioinformatics Institute * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.Closeable; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.Reader; import java.io.Writer; public class Main { /** * Performs the same function as the commons io version but also performs * logging of readers which threw an exception when trying to close them and * logs them at error level */ public static void closeQuietly(Reader reader) { close(reader); } /** * Equivalent of {@link #closeQuietly(Writer)} but for {@link Writer} * extending classes */ public static void closeQuietly(Writer writer) { close(writer); } /** * Performs the same function as the commons io version but also performs * logging of streams which threw an exception when trying to close them and * logs them at error level */ public static void closeQuietly(InputStream is) { close(is); } /** * Equivalent of {@link #closeQuietly(InputStream)} but for * {@link OutputStream} extending classes */ public static void closeQuietly(OutputStream os) { close(os); } public static void close(Closeable closeable) { if (null != closeable) { try { closeable.close(); } catch (IOException e) { // don't log error } } } }