Here you can find the source of close(InputStream is)
public static final void close(InputStream is)
//package com.java2s; /*//from w ww.j ava 2 s . c om * Copyright 2012 Evgeny Dolganov (evgenij.dolganov@gmail.com). * * 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.InputStream; import java.io.OutputStream; import java.io.Writer; public class Main { public static final void close(InputStream is) { if (is == null) { return; } try { is.close(); } catch (Exception e) { System.err.println("can't close InputStream: " + e); } } public static final void close(OutputStream os) { if (os == null) { return; } try { os.close(); } catch (Exception e) { System.err.println("can't close OutputStream" + e); } } public static final void close(Writer w) { if (w == null) { return; } try { w.close(); } catch (Exception e) { System.err.println("can't close Writer: " + e); } } }