Here you can find the source of resolve(URI base, URI child)
public static URI resolve(URI base, URI child)
//package com.java2s; /* Copyright 2004 The Apache Software Foundation * * 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.// www . j a v a2 s .co m */ import java.net.URI; import java.net.URISyntaxException; public class Main { public static URI resolve(URI base, URI child) { URI ruri = base.resolve(child); //fix up normalization bug if ("file".equals(ruri.getScheme()) && !child.equals(ruri)) { if (base.getPath().startsWith("//") && !ruri.getPath().startsWith("//")) { String path = "///".concat(ruri.getPath()); try { ruri = new URI("file", null, path, ruri.getQuery(), ruri.getFragment()); } catch (URISyntaxException uris) { } } } return ruri; } }