/* * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ import java.io.IOException; import java.lang.reflect.Method; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class Wrapper { public static void main(String... args) throws Exception { if (!isSJavacOnClassPath()) { System.out.println("sjavac not available: pass by default"); return; } String testClassName = args[0]; String[] testArgs = Arrays.copyOfRange(args, 1, args.length); Path srcDir = Paths.get(System.getProperty("test.src")); Path clsDir = Paths.get(System.getProperty("test.classes")); String clsPath = System.getProperty("test.class.path"); String tstMdls = System.getProperty("test.modules"); Path src = srcDir.resolve(testClassName + ".java"); Path cls = clsDir.resolve(testClassName + ".class"); if (isNewer(src, cls)) { System.err.println("Recompiling test class..."); List<String> javacArgs = new ArrayList<>(); javacArgs.addAll(Arrays.asList("-d", clsDir.toString())); javacArgs.addAll(Arrays.asList("-sourcepath", srcDir.toString())); javacArgs.addAll(Arrays.asList("-classpath", clsPath)); Arrays.stream(tstMdls.split("\\s+")) .filter(s -> s.contains("/")) .map(s -> "--add-exports=" + s + "=ALL-UNNAMED") .collect(Collectors.toCollection(() -> javacArgs)); javacArgs.add(src.toString()); System.out.println("javac: " + javacArgs); int rc = com.sun.tools.javac.Main.compile( javacArgs.toArray(new String[javacArgs.size()])); if (rc != 0) throw new Exception("compilation failed"); } Class<?> sjavac = Class.forName(testClassName); Method main = sjavac.getMethod("main", String[].class); main.invoke(null, new Object[] { testArgs }); } private static boolean isNewer(Path a, Path b) throws IOException { if (Files.notExists(b)) return true; return Files.getLastModifiedTime(a).compareTo(Files.getLastModifiedTime(b)) > 0; } private static boolean isSJavacOnClassPath() { String cls = "com/sun/tools/sjavac/Main.class"; return Wrapper.class.getClassLoader().getResource(cls) != null; } }